Tailwind CSS v3 color

Tailwind emerald-600 #059669

Tailwind CSS v3's emerald-600 is #059669. It is a soft green in the green family. In OKLCH it sits at lightness 0.596, chroma 0.127 and hue 163.2°. The nearest CSS named color is seagreen (#2E8B57), ΔE2000 5.1 away.

Relative luminance
0.2286
OKLCH L · C · h
0.596 · 0.127 · 163.2
Best text
Black 5.57:1
Hue family
Green
Inspect this color Check contrast

#059669 color codes

HEX
#059669
RGB
rgb(5, 150, 105)
HSL
hsl(161, 94%, 30%)
OKLCH
oklch(0.596 0.127 163.2)
OKLab
oklab(0.596 -0.122 0.037)
CIELAB (D65)
L* 54.93, a* -44.75, b* 14.47
XYZ (D65)
X 13.52, Y 22.86, Z 17.06
CMYK (naive)
cmyk(97%, 0%, 30%, 41%)

CIELAB and XYZ use the D65 white point; CSS lab() uses D50, so paste the OKLCH or HEX value into stylesheets. CMYK here is a plain formula with no press profile.

Legibility

Contrast: is #059669 accessible?

Black text on it reaches 5.57:1, passing AA. White text manages only 3.76:1, enough for large text only.

WCAG 2 gives the same ratio whichever color is the text; APCA does not, so its Lc changes sign and size with polarity.

Open the Contrast System

  • Black text on it

    5.57:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc +39

  • White text on it

    3.76:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc −70

  • As text on black

    5.57:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc −37

  • As text on white

    3.76:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc +64

Nearest versions that pass 4.5:1

  • For text on white

    #00875E 4.53:1

    Darkening its OKLCH lightness from 0.60 to 0.55 reaches 4.53:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #059669 5.57:1

    It already reaches 5.57:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #059669 live

Move lightness, chroma and hue in OKLCH, or drag on the map. The map is every lightness and chroma at the current hue: sRGB inside the solid area, Display P3 out to the dashed line.

The studio needs JavaScript.

Scale

Shades and tints of #059669

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #059669 sits at step 500.

  1. 50#DCFFED
    White
    1.07
    Black
    19.57
  2. 100#B2FFDA
    White
    1.15
    Black
    18.20
  3. 200#8EEFC3
    White
    1.37
    Black
    15.28
  4. 300#6CD6A8
    White
    1.77
    Black
    11.82
  5. 400#47BA8B
    White
    2.42
    Black
    8.66
  6. 500This color#059669
    White
    3.76
    Black
    5.57
  7. 600#00835B
    White
    4.77
    Black
    4.39
  8. 700#006948
    White
    6.74
    Black
    3.11
  9. 800#004C33
    White
    10.08
    Black
    2.08
  10. 900#003220
    White
    14.21
    Black
    1.47
  11. 950#001C10
    White
    17.89
    Black
    1.17

Under each step, white and black text on it; a bold figure passes 4.5:1.

Tailwind CSS v3 emerald scale

The real Tailwind palette, for comparison with the computed ramp above.

  1. 50#ECFDF5
    White
    1.05
    Black
    19.93
  2. 100#D1FAE5
    White
    1.13
    Black
    18.51
  3. 200#A7F3D0
    White
    1.28
    Black
    16.37
  4. 300#6EE7B7
    White
    1.52
    Black
    13.77
  5. 400#34D399
    White
    1.92
    Black
    10.92
  6. 500#10B981
    White
    2.53
    Black
    8.27
  7. 600This color#059669
    White
    3.76
    Black
    5.57
  8. 700#047857
    White
    5.48
    Black
    3.82
  9. 800#065F46
    White
    7.68
    Black
    2.73
  10. 900#064E3B
    White
    9.71
    Black
    2.16
  11. 950#022C22
    White
    15.15
    Black
    1.38

Gamut

How vivid #059669 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.128; #059669 uses 99% of it. Display P3, which many recent phones and laptops show, reaches 0.176 there: 37% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.127
sRGB edge
0.128
Display P3 edge
0.176
Rec. 2020 edge
0.277
Dominant wavelength
514 nm
Excitation purity
21%
Chromaticity
x 0.2529, y 0.4278
  • This color#059669
  • Most vivid in sRGB#009669
  • Most vivid in Display P3oklch(0.596 0.176 163.2)

On a screen without Display P3 the last tile shows the sRGB edge instead.

Use the wider color where screens show it
.accent {
  color: #059669;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0 0.6056 0.3945); }
}

Mixing

Mixing #059669

Each row is the same mix worked out in a different space, with the halfway color at its end. sRGB, which older CSS gradients use, can sag gray or dark in the middle; OKLab keeps the lightness steps even; OKLCH holds chroma and hue as it goes.

White #FFFFFF

  • sRGB50%#82CBB4
  • OKLab50%#98CBB2
  • OKLCH50%#98CBB2

Black #000000

  • sRGB50%#034B35
  • OKLab50%#013724
  • OKLCH50%#013724

Its complement #B25D93

  • sRGB50%#5C7A7E
  • OKLab50%#7F7F7F
  • OKLCH50%#4281C9
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #059669, white);
color: color-mix(in oklch, #059669 50%, white);

In use

#059669 in an interface

A button, a link, a heading, a focused field, an icon and a chart line in this color, on a light page and a dark one. Each check is a WCAG 2 contrast minimum: 1.4.3 for text, 1.4.11 for the rest.

Light page

  • Button labelText, 4.5:15.57:1 Passes
  • Link and body-size textText, 4.5:13.76:1 Fails
  • Large headingLarge text, 3:13.76:1 Passes
  • Icons, borders and focus ringsNon-text, 3:13.76:1 Passes

For text on this page, the nearest shade that passes is #00875E 4.53:1

Dark page

  • Button labelText, 4.5:15.57:1 Passes
  • Link and body-size textText, 4.5:14.97:1 Passes
  • Large headingLarge text, 3:14.97:1 Passes
  • Icons, borders and focus ringsNon-text, 3:14.97:1 Passes

Color vision

How #059669 looks with color blindness

Achromatopsia changes it most, ΔE2000 24.6; tritanopia changes it least, 10.6.

Simulated with Machado et al. (2009) at full severity, in linear light.

Simulate a whole page What each type sees

  • Protanopia

    No working red (long-wavelength) cones

    #938A66 ΔE2000 23.4

    Distinct

    Reads as muted amber

  • Deuteranopia

    No working green (medium-wavelength) cones

    #847F6C ΔE2000 22.9

    Distinct

    Reads as grayish amber

  • Tritanopia

    No working blue (short-wavelength) cones

    #00968A ΔE2000 10.6

    Distinct

    Reads as soft cyan

  • Achromatopsia

    No cone color vision; lightness only

    #838383 ΔE2000 24.6

    Distinct

    Reads as gray

Pairing check

Checked against its complement, #B25D93. Their lightness contrast is only 1.14:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#059669 · #B25D9348.4Stays distinct
Protanopia#938A66 · #62719532.6Stays distinct
Deuteranopia#847F6C · #797F9118.6Stays distinct
Tritanopia#00968A · #BB5D7155.6Stays distinct
Achromatopsia#838383 · #7A7A7A3.4Easily confused

Harmony

Color harmonies for #059669

Its complement is #B25D93, a soft magenta, on the warm side of the wheel.

Hue rotations in OKLCH, mapped into sRGB by trimming chroma so hue and lightness stay put.

Open the Harmony Studio
  • Base#059669
  • Complement#B25D93

Complementary

Open in Harmony Studio
  • −30°#5F8F39
  • Base#059669
  • +30°#009290

Analogous

Open in Harmony Studio
  • Base#059669
  • +120°#7673C8
  • +240°#BC623B

Triadic

Open in Harmony Studio
  • Base#059669
  • +150°#9A66B4
  • +210°#BE5B69

Split-complementary

Open in Harmony Studio

Code

Design tokens

Ready-to-paste tokens in six formats. Rename them to fit your system.

CSS custom property

:root {
  --color-emerald-600: #059669;
}

Tailwind config

// tailwind.config.js — already built in as emerald-600;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        emerald: { 600: '#059669' },
      },
    },
  },
};

Tailwind v4 theme

/* app.css — Tailwind CSS v4 */
@import "tailwindcss";

@theme {
  /* v4 has its own emerald-600; this pins the v3 value. */
  --color-emerald-600: oklch(0.596 0.127 163.2);
}

Design token (W3C DTCG)

{
  "color": {
    "emerald-600": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.0196, 0.5882, 0.4118],
        "hex": "#059669"
      },
      "$description": "Tailwind CSS v3 emerald-600"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let emerald600 = Color(.sRGB, red: 0.020, green: 0.588, blue: 0.412, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Emerald600 = Color(0xFF059669)
}

Matches

The nearest match in each system

The closest CSS name, Tailwind shade, RAL Classic paint and Crayola crayon by ΔE2000; under 2 is hard to tell apart side by side. RAL and Crayola values approximate physical colors.

Neighbors

The eight nearest colors on this site by ΔE2000, closest first. Under 2 is hard to tell apart side by side.

Tools

Open #059669 in the tools

Each opens over this page. More colors live in the Color Library, and every color page is listed on the hub.