Tailwind CSS v3 color

Tailwind lime-950 #1A2E05

Tailwind CSS v3's lime-950 is #1A2E05. It is a very dark muted green in the green family. In OKLCH it sits at lightness 0.274, chroma 0.069 and hue 132.1°. The nearest CSS named color is darkgreen (#006400), ΔE2000 18.8 away.

Relative luminance: 0.0218
OKLCH L · C · h: 0.274 · 0.069 · 132.1
Best text: White 14.61:1
Hue family: Green

Inspect this color Check contrast

#1A2E05 color codes

HEX: #1A2E05
RGB: rgb(26, 46, 5)
HSL: hsl(89, 80%, 10%)
OKLCH: oklch(0.274 0.069 132.1)
OKLab: oklab(0.274 -0.046 0.051)
CIELAB (D65): L* 16.43, a* -16.33, b* 21.32
XYZ (D65): X 1.43, Y 2.18, Z 0.49
CMYK (naive): cmyk(43%, 0%, 89%, 82%)

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 #1A2E05 accessible?

White text on it reaches 14.61:1, passing AAA. Black text fails at 1.43:1.

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

1.43:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
Text is here, unreadable at 1.43:1
White text on it

14.61:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −104
As text on black

1.43:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
Text is here, unreadable at 1.43:1
As text on white

14.61:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +101

Nearest versions that pass 4.5:1

For text on white

#1A2E05 14.61:1

It already reaches 14.61:1 on white, so no change is needed.
For text on black

#657D52 4.60:1

Lightening its OKLCH lightness from 0.27 to 0.56 reaches 4.60:1 on black, keeping the hue.

Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #1A2E05 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 #1A2E05

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #1A2E05 sits at step 900.

50#E8FED8

White
1.07
Black
19.59
100#DDF4CD

White
1.17
Black
17.89
200#C9E1B8

White
1.40
Black
14.94
300#AEC79C

White
1.83
Black
11.44
400#92AB7F

White
2.51
Black
8.35
500#778F64

White
3.56
Black
5.89
600#60774D

White
4.94
Black
4.24
700#4A6038

White
6.95
Black
3.02
800#334722

White
10.16
Black
2.06
900This color#1A2E05

White
14.61
Black
1.43
950#0D1B01

White
17.88
Black
1.17

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

Tailwind CSS v3 lime scale

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

50#F7FEE7
White
1.03
Black
20.28
100#ECFCCB
White
1.08
Black
19.35
200#D9F99D
White
1.16
Black
17.98
300#BEF264
White
1.30
Black
16.07
400#A3E635
White
1.50
Black
13.92
500#84CC16
White
1.97
Black
10.62
600#65A30D
White
3.08
Black
6.79
700#4D7C0F
White
4.99
Black
4.20
800#3F6212
White
7.07
Black
2.96
900#365314
White
8.73
Black
2.40
950This color#1A2E05

White
14.61
Black
1.43

Gamut

How vivid #1A2E05 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.077; #1A2E05 uses 90% of it. Display P3, which many recent phones and laptops show, reaches 0.090 there: 17% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.069
sRGB edge: 0.077
Display P3 edge: 0.090
Rec. 2020 edge: 0.093
Dominant wavelength: 559 nm
Excitation purity: 67%
Chromaticity: x 0.3485, y 0.5322

This color#1A2E05
Most vivid in sRGB#182F00
Most vivid in Display P3oklch(0.274 0.090 132.1)

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

Use the wider color where screens show it

.accent {
  color: #1a2e05;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.108 0.1839 0); }
}

Mixing

Mixing #1A2E05

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%#8D9782
OKLab50%#84907B
OKLCH50%#84907B

Black #000000

sRGB50%#0D1703
OKLab50%#040B01
OKLCH50%#040B01

Its complement #331C3F

sRGB50%#272522
OKLab50%#282727
OKLCH50%#421A08

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #1a2e05, white);
color: color-mix(in oklch, #1a2e05 50%, white);

In use

#1A2E05 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, 4.5:114.61:1 Passes
Link and body-size textText, 4.5:114.61:1 Passes
Large headingLarge text, 3:114.61:1 Passes
Icons, borders and focus ringsNon-text, 3:114.61:1 Passes

Dark page

Button labelText, 4.5:114.61:1 Passes
Link and body-size textText, 4.5:11.28:1 Fails
Large headingLarge text, 3:11.28:1 Fails
Icons, borders and focus ringsNon-text, 3:11.28:1 Fails

For text on this page, the nearest shade that passes is #6C845A 4.53:1

Color vision

How #1A2E05 looks with color blindness

Achromatopsia changes it most, ΔE2000 18.5; protanopia changes it least, 11.2.

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

#302A01 ΔE2000 11.2

Distinct

Reads as very dark muted yellow
Deuteranopia

No working green (medium-wavelength) cones

#2E2808 ΔE2000 11.7

Distinct

Reads as very dark grayish brown
Tritanopia

No working blue (short-wavelength) cones

#1A2C26 ΔE2000 12.7

Distinct

Reads as very dark grayish teal
Achromatopsia

No cone color vision; lightness only

#292929 ΔE2000 18.5

Distinct

Reads as near-black

Pairing check

Checked against its complement, #331C3F. Their lightness contrast is only 1.04:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#1A2E05 · #331C3F	43.3	Stays distinct
Protanopia	#302A01 · #142440	32.3	Stays distinct
Deuteranopia	#2E2808 · #1B263E	28.5	Stays distinct
Tritanopia	#1A2C26 · #32212A	23.4	Stays distinct
Achromatopsia	#292929 · #252525	1.3	Easily confused

Harmony

Color harmonies for #1A2E05

Its complement is #331C3F, a very dark muted violet.

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

Open the Harmony Studio

Base#1A2E05
Complement#331C3F

Complementary

Open in Harmony Studio

−30°#2D2800
Base#1A2E05
+30°#00301E

Analogous

Open in Harmony Studio

Base#1A2E05
+120°#092848
+240°#43161E

Triadic

Open in Harmony Studio

Base#1A2E05
+150°#232248
+210°#3D1831

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-lime-950: #1a2e05;
}

Tailwind config

// tailwind.config.js — already built in as lime-950;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        lime: { 950: '#1a2e05' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own lime-950; this pins the v3 value. */
  --color-lime-950: oklch(0.274 0.069 132.1);
}

Design token (W3C DTCG)

{
  "color": {
    "lime-950": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.102, 0.1804, 0.0196],
        "hex": "#1a2e05"
      },
      "$description": "Tailwind CSS v3 lime-950"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let lime950 = Color(.sRGB, red: 0.102, green: 0.180, blue: 0.020, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Lime950 = Color(0xFF1A2E05)
}

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.

Tools

Open #1A2E05 in the tools

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

Tailwind lime-950 #1A2E05

#1A2E05 color codes

Contrast: is #1A2E05 accessible?

Black text on it

White text on it

As text on black

As text on white

Nearest versions that pass 4.5:1

Adjust #1A2E05 live

Shades and tints of #1A2E05

Tailwind CSS v3 lime scale

How vivid #1A2E05 can get

Mixing #1A2E05

#1A2E05 in an interface

How #1A2E05 looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #1A2E05

Complementary

Analogous

Triadic

Split-complementary

Design tokens

CSS custom property

Tailwind config

Tailwind v4 theme

Design token (W3C DTCG)

SwiftUI color

Jetpack Compose color

The nearest match in each system

Similar colors

Open #1A2E05 in the tools