Tailwind CSS v3 color

Tailwind orange-600 #EA580C

Tailwind CSS v3's orange-600 is #EA580C. It is a vivid red in the red family. In OKLCH it sits at lightness 0.646, chroma 0.194 and hue 41.1°. The nearest CSS named color is orangered (#FF4500), ΔE2000 4.6 away.

Relative luminance
0.2450
OKLCH L · C · h
0.646 · 0.194 · 41.1
Best text
Black 5.89:1
Hue family
Red
Inspect this color Check contrast

#EA580C color codes

HEX
#EA580C
RGB
rgb(234, 88, 12)
HSL
hsl(21, 90%, 48%)
OKLCH
oklch(0.646 0.194 41.1)
OKLab
oklab(0.646 0.146 0.128)
CIELAB (D65)
L* 56.59, a* 53.81, b* 64.06
XYZ (D65)
X 37.49, Y 24.50, Z 3.10
CMYK (naive)
cmyk(0%, 62%, 95%, 8%)

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 #EA580C accessible?

Black text on it reaches 5.89:1, passing AA. White text manages only 3.55:1, 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

    5.89:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc +41

  • White text on it

    3.55:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc −67

  • As text on black

    5.89:1

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

  • As text on white

    3.55:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc +62

Nearest versions that pass 4.5:1

  • For text on white

    #CF4B00 4.50:1

    Darkening its OKLCH lightness from 0.65 to 0.59 reaches 4.50:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #EA580C 5.89:1

    It already reaches 5.89:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #EA580C 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 #EA580C

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #EA580C sits at step 500.

  1. 50#FFF2ED
    White
    1.09
    Black
    19.17
  2. 100#FFE5DB
    White
    1.20
    Black
    17.48
  3. 200#FFCAB6
    White
    1.46
    Black
    14.37
  4. 300#FFA381
    White
    1.94
    Black
    10.80
  5. 400#FF6F33
    White
    2.77
    Black
    7.57
  6. 500This color#EA580C
    White
    3.55
    Black
    5.89
  7. 600#BA4200
    White
    5.43
    Black
    3.86
  8. 700#953300
    White
    7.63
    Black
    2.75
  9. 800#6E2400
    White
    10.96
    Black
    1.91
  10. 900#4A1500
    White
    15.01
    Black
    1.39
  11. 950#2C0900
    White
    18.32
    Black
    1.14

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

Tailwind CSS v3 orange scale

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

  1. 50#FFF7ED
    White
    1.06
    Black
    19.77
  2. 100#FFEDD5
    White
    1.14
    Black
    18.32
  3. 200#FED7AA
    White
    1.35
    Black
    15.51
  4. 300#FDBA74
    White
    1.68
    Black
    12.45
  5. 400#FB923C
    White
    2.26
    Black
    9.27
  6. 500#F97316
    White
    2.80
    Black
    7.49
  7. 600This color#EA580C
    White
    3.55
    Black
    5.89
  8. 700#C2410C
    White
    5.17
    Black
    4.05
  9. 800#9A3412
    White
    7.30
    Black
    2.87
  10. 900#7C2D12
    White
    9.37
    Black
    2.24
  11. 950#431407
    White
    15.65
    Black
    1.34

Gamut

How vivid #EA580C can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.198; #EA580C uses 98% of it. Display P3, which many recent phones and laptops show, reaches 0.224 there: 13% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.194
sRGB edge
0.198
Display P3 edge
0.224
Rec. 2020 edge
0.225
Dominant wavelength
598 nm
Excitation purity
87%
Chromaticity
x 0.5759, y 0.3764
  • This color#EA580C
  • Most vivid in sRGB#EC5600
  • Most vivid in Display P3oklch(0.646 0.224 41.1)

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

Use the wider color where screens show it
.accent {
  color: #ea580c;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.8907 0.3378 0); }
}

Mixing

Mixing #EA580C

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%#F5AC86
  • OKLab50%#FCB094
  • OKLCH50%#FCB094

Black #000000

  • sRGB50%#752C06
  • OKLab50%#5A1D02
  • OKLCH50%#5A1D02

Its complement #009EC1

  • sRGB50%#757B67
  • OKLab50%#A3877D
  • OKLCH50%#6BA12B
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #ea580c, white);
color: color-mix(in oklch, #ea580c 50%, white);

In use

#EA580C 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, 4.5:15.89:1 Passes
  • Link and body-size textText, 4.5:13.55:1 Fails
  • Large headingLarge text, 3:13.55:1 Passes
  • Icons, borders and focus ringsNon-text, 3:13.55:1 Passes

For text on this page, the nearest shade that passes is #CF4B00 4.50:1

Dark page

  • Button labelText, 4.5:15.89:1 Passes
  • Link and body-size textText, 4.5:15.26:1 Passes
  • Large headingLarge text, 3:15.26:1 Passes
  • Icons, borders and focus ringsNon-text, 3:15.26:1 Passes

Color vision

How #EA580C looks with color blindness

Deuteranopia changes it most, ΔE2000 34.8; tritanopia changes it least, 18.5.

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

    #837300 ΔE2000 33.7

    Distinct

    Reads as soft amber

  • Deuteranopia

    No working green (medium-wavelength) cones

    #A79400 ΔE2000 34.8

    Distinct

    Reads as light soft yellow

  • Tritanopia

    No working blue (short-wavelength) cones

    #FF2E4C ΔE2000 18.5

    Distinct

    Reads as vivid red

  • Achromatopsia

    No cone color vision; lightness only

    #888888 ΔE2000 29.1

    Distinct

    Reads as gray

Pairing check

Checked against its complement, #009EC1. Their lightness contrast is only 1.12:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#EA580C · #009EC158.0Stays distinct
Protanopia#837300 · #899AC345.7Stays distinct
Deuteranopia#A79400 · #738AC150.1Stays distinct
Tritanopia#FF2E4C · #00A9A962.5Stays distinct
Achromatopsia#888888 · #9191913.1Easily confused

Harmony

Color harmonies for #EA580C

Its complement is #009EC1, a soft blue, on the cool 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#EA580C
  • Complement#009EC1

Complementary

Open in Harmony Studio
  • −30°#EB4C70
  • Base#EA580C
  • +30°#C27D00

Analogous

Open in Harmony Studio
  • Base#EA580C
  • +120°#00A871
  • +240°#7D78FF

Triadic

Open in Harmony Studio
  • Base#EA580C
  • +150°#00A39E
  • +210°#0090FB

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-orange-600: #ea580c;
}

Tailwind config

// tailwind.config.js — already built in as orange-600;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        orange: { 600: '#ea580c' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own orange-600; this pins the v3 value. */
  --color-orange-600: oklch(0.646 0.194 41.1);
}

Design token (W3C DTCG)

{
  "color": {
    "orange-600": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.9176, 0.3451, 0.0471],
        "hex": "#ea580c"
      },
      "$description": "Tailwind CSS v3 orange-600"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let orange600 = Color(.sRGB, red: 0.918, green: 0.345, blue: 0.047, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Orange600 = Color(0xFFEA580C)
}

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 #EA580C in the tools

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