Tailwind CSS v3 color

Tailwind yellow-600 #CA8A04

Tailwind CSS v3's yellow-600 is #CA8A04. It is a light soft amber in the orange family. In OKLCH it sits at lightness 0.681, chroma 0.142 and hue 75.8°. The nearest CSS named color is darkgoldenrod (#B8860B), ΔE2000 4.3 away.

Relative luminance
0.3074
OKLCH L · C · h
0.681 · 0.142 · 75.8
Best text
Black 7.14:1
Hue family
Orange
Inspect this color Check contrast

#CA8A04 color codes

HEX
#CA8A04
RGB
rgb(202, 138, 4)
HSL
hsl(41, 96%, 40%)
OKLCH
oklch(0.681 0.142 75.8)
OKLab
oklab(0.681 0.035 0.138)
CIELAB (D65)
L* 62.29, a* 15.62, b* 66.95
XYZ (D65)
X 33.47, Y 30.75, Z 4.29
CMYK (naive)
cmyk(0%, 32%, 98%, 21%)

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 #CA8A04 accessible?

Black text on it reaches 7.14:1, passing AAA. White text fails at 2.93:1.

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

    7.14:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +48

  • White text on it

    2.93:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −60

  • As text on black

    7.14:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −46

  • As text on white

    2.93:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +55

Nearest versions that pass 4.5:1

  • For text on white

    #A06C00 4.52:1

    Darkening its OKLCH lightness from 0.68 to 0.57 reaches 4.52:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #CA8A04 7.14:1

    It already reaches 7.14:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #CA8A04 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 #CA8A04

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #CA8A04 sits at step 400.

  1. 50#FFF3E3
    White
    1.09
    Black
    19.18
  2. 100#FFE7C7
    White
    1.19
    Black
    17.50
  3. 200#FFCE88
    White
    1.45
    Black
    14.43
  4. 300#EFB150
    White
    1.89
    Black
    11.07
  5. 400This color#CA8A04
    White
    2.93
    Black
    7.14
  6. 500#B27900
    White
    3.73
    Black
    5.62
  7. 600#946400
    White
    5.14
    Black
    4.08
  8. 700#774F00
    White
    7.23
    Black
    2.90
  9. 800#573900
    White
    10.55
    Black
    1.99
  10. 900#392400
    White
    14.72
    Black
    1.42
  11. 950#211300
    White
    18.13
    Black
    1.15

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

Tailwind CSS v3 yellow scale

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

  1. 50#FEFCE8
    White
    1.03
    Black
    20.30
  2. 100#FEF9C3
    White
    1.07
    Black
    19.55
  3. 200#FEF08A
    White
    1.16
    Black
    18.04
  4. 300#FDE047
    White
    1.31
    Black
    15.92
  5. 400#FACC15
    White
    1.53
    Black
    13.71
  6. 500#EAB308
    White
    1.91
    Black
    10.95
  7. 600This color#CA8A04
    White
    2.93
    Black
    7.14
  8. 700#A16207
    White
    4.92
    Black
    4.26
  9. 800#854D0E
    White
    6.85
    Black
    3.06
  10. 900#713F12
    White
    8.67
    Black
    2.42
  11. 950#422006
    White
    14.57
    Black
    1.44

Gamut

How vivid #CA8A04 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.143; #CA8A04 uses 99% of it. Display P3, which many recent phones and laptops show, reaches 0.165 there: 15% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.142
sRGB edge
0.143
Display P3 edge
0.165
Rec. 2020 edge
0.168
Dominant wavelength
582 nm
Excitation purity
83%
Chromaticity
x 0.4886, y 0.4488
  • This color#CA8A04
  • Most vivid in sRGB#CA8A00
  • Most vivid in Display P3oklch(0.681 0.165 75.8)

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

Use the wider color where screens show it
.accent {
  color: #ca8a04;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.7786 0.5407 0); }
}

Mixing

Mixing #CA8A04

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%#E5C582
  • OKLab50%#E6C597
  • OKLCH50%#E6C597

Black #000000

  • sRGB50%#654502
  • OKLab50%#4D3200
  • OKLCH50%#4D3200

Its complement #599AEE

  • sRGB50%#929279
  • OKLab50%#989898
  • OKLCH50%#00B384
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #ca8a04, white);
color: color-mix(in oklch, #ca8a04 50%, white);

In use

#CA8A04 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, 4.5:17.14:1 Passes
  • Link and body-size textText, 4.5:12.93:1 Fails
  • Large headingLarge text, 3:12.93:1 Fails
  • Icons, borders and focus ringsNon-text, 3:12.93:1 Fails

For text on this page, the nearest shade that passes is #A06C00 4.52:1

Dark page

  • Button labelText, 4.5:17.14:1 Passes
  • Link and body-size textText, 4.5:16.37:1 Passes
  • Large headingLarge text, 3:16.37:1 Passes
  • Icons, borders and focus ringsNon-text, 3:16.37:1 Passes

Color vision

How #CA8A04 looks with color blindness

Tritanopia changes it most, ΔE2000 30.6; protanopia changes it least, 13.0.

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

    #A18D00 ΔE2000 13.0

    Distinct

    Reads as soft amber

  • Deuteranopia

    No working green (medium-wavelength) cones

    #B09D10 ΔE2000 13.7

    Distinct

    Reads as light soft yellow

  • Tritanopia

    No working blue (short-wavelength) cones

    #DD7975 ΔE2000 30.6

    Distinct

    Reads as light soft red

  • Achromatopsia

    No cone color vision; lightness only

    #979797 ΔE2000 27.0

    Distinct

    Reads as gray

Pairing check

Checked against its complement, #599AEE. Their lightness contrast is only 1.01:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#CA8A04 · #599AEE51.9Stays distinct
Protanopia#A18D00 · #76A0F154.9Stays distinct
Deuteranopia#B09D10 · #6192EC57.5Stays distinct
Tritanopia#DD7975 · #00ADB962.9Stays distinct
Achromatopsia#979797 · #9898980.3Easily confused

Harmony

Color harmonies for #CA8A04

Its complement is #599AEE, a light 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#CA8A04
  • Complement#599AEE

Complementary

Open in Harmony Studio
  • −30°#DF7946
  • Base#CA8A04
  • +30°#A59D0E

Analogous

Open in Harmony Studio
  • Base#CA8A04
  • +120°#00AEB0
  • +240°#BA7BD3

Triadic

Open in Harmony Studio
  • Base#CA8A04
  • +150°#00A8D5
  • +210°#9289EC

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-yellow-600: #ca8a04;
}

Tailwind config

// tailwind.config.js — already built in as yellow-600;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        yellow: { 600: '#ca8a04' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own yellow-600; this pins the v3 value. */
  --color-yellow-600: oklch(0.681 0.142 75.8);
}

Design token (W3C DTCG)

{
  "color": {
    "yellow-600": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.7922, 0.5412, 0.0157],
        "hex": "#ca8a04"
      },
      "$description": "Tailwind CSS v3 yellow-600"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let yellow600 = Color(.sRGB, red: 0.792, green: 0.541, blue: 0.016, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Yellow600 = Color(0xFFCA8A04)
}

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 #CA8A04 in the tools

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