Tailwind CSS v3 color
Tailwind amber-950 #451A03
Tailwind CSS v3's amber-950 is #451A03. It is a very dark muted brown in the brown family. In OKLCH it sits at lightness 0.279, chroma 0.074 and hue 45.6°. The nearest CSS named color is maroon (#800000), ΔE2000 13.7 away.
- Relative luminance
- 0.0201
- OKLCH L · C · h
- 0.279 · 0.074 · 45.6
- Best text
- White 14.97:1
- Hue family
- Brown
#451A03 color codes
- HEX
#451A03- RGB
rgb(69, 26, 3)- HSL
hsl(21, 92%, 14%)- OKLCH
oklch(0.279 0.074 45.6)- OKLab
oklab(0.279 0.052 0.053)- CIELAB (D65)
L* 15.54, a* 19.19, b* 22.16- XYZ (D65)
X 2.84, Y 2.01, Z 0.32- CMYK (naive)
cmyk(0%, 62%, 96%, 73%)
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 #451A03 accessible?
White text on it reaches 14.97:1, passing AAA. Black text fails at 1.40:1.
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
1.40:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
Text is here, unreadable at 1.40:1
-
White text on it
14.97:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −104
-
As text on black
1.40:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
Text is here, unreadable at 1.40:1
-
As text on white
14.97:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +101
Nearest versions that pass 4.5:1
-
For text on white
#451A03 14.97:1
It already reaches 14.97:1 on white, so no change is needed.
-
For text on black
#9C6952 4.55:1
Lightening its OKLCH lightness from 0.28 to 0.57 reaches 4.55:1 on black, keeping the hue.
Checking another pair? Use the Contrast Checker.
Studio
Adjust #451A03 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.
Scale
Shades and tints of #451A03
Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #451A03 sits at step 900.
Under each step, white and black text on it; a bold figure passes 4.5:1.
Tailwind CSS v3 amber scale
The real Tailwind palette, for comparison with the computed ramp above.
Gamut
How vivid #451A03 can get
At its lightness and hue, sRGB reaches OKLCH chroma 0.079; #451A03 uses 93% of it. Display P3, which many recent phones and laptops show, reaches 0.090 there: 13% more.
- sRGB
- Display P3
- Rec. 2020
- Dominant wavelength
- OKLCH chroma
- 0.074
- sRGB edge
- 0.079
- Display P3 edge
- 0.090
- Rec. 2020 edge
- 0.091
- Dominant wavelength
- 594 nm
- Excitation purity
- 83%
- Chromaticity
- x 0.5488, y 0.3885
- This color#451A03
- Most vivid in sRGB#471800
- Most vivid in Display P3oklch(0.279 0.090 45.6)
On a screen without Display P3 the last tile shows the sRGB edge instead.
.accent {
color: #451a03;
}
@media (color-gamut: p3) {
.accent { color: color(display-p3 0.2669 0.0954 0); }
}Mixing
Mixing #451A03
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%#A28D81
- OKLab50%#A0857A
- OKLCH50%#A0857A
Black #000000
- sRGB50%#230D02
- OKLab50%#150400
- OKLCH50%#150400
Its complement #002E3D
- sRGB50%#232420
- OKLab50%#2D2725
- OKLCH50%#351E3E
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #451a03, white);
color: color-mix(in oklch, #451a03 50%, white);In use
#451A03 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, 4.5:114.97:1 Passes
- Link and body-size textText, 4.5:114.97:1 Passes
- Large headingLarge text, 3:114.97:1 Passes
- Icons, borders and focus ringsNon-text, 3:114.97:1 Passes
Dark page
- Button labelText, 4.5:114.97:1 Passes
- Link and body-size textText, 4.5:11.25:1 Fails
- Large headingLarge text, 3:11.25:1 Fails
- Icons, borders and focus ringsNon-text, 3:11.25:1 Fails
For text on this page, the nearest shade that passes is #A5725A 4.59:1
Color vision
How #451A03 looks with color blindness
Achromatopsia changes it most, ΔE2000 19.6; tritanopia changes it least, 9.5.
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
#262101 ΔE2000 19.1
Distinct
Reads as very dark grayish yellow
-
Deuteranopia
No working green (medium-wavelength) cones
#312B02 ΔE2000 19.2
Distinct
Reads as very dark muted yellow
-
Tritanopia
No working blue (short-wavelength) cones
#4D1015 ΔE2000 9.5
Noticeable
Reads as very dark muted brown
-
Achromatopsia
No cone color vision; lightness only
#272727 ΔE2000 19.6
Distinct
Reads as near-black
Pairing check
Checked against its complement, #002E3D. Their lightness contrast is only 1.03:1, so where hue collapses, add a label, icon or pattern.
| Vision | The pair | ΔE2000 | Verdict |
|---|---|---|---|
| Normal vision | #451A03 · #002E3D | 34.9 | Stays distinct |
| Protanopia | #262101 · #262D3E | 24.5 | Stays distinct |
| Deuteranopia | #312B02 · #1E273D | 29.8 | Stays distinct |
| Tritanopia | #4D1015 · #003233 | 38.9 | Stays distinct |
| Achromatopsia | #272727 · #2A2A2A | 0.9 | Easily confused |
Harmony
Color harmonies for #451A03
Its complement is #002E3D, a very dark muted 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#451A03
- Complement#002E3D
Complementary
Open in Harmony Studio- −30°#46161C
- Base#451A03
- +30°#392400
Analogous
Open in Harmony Studio- Base#451A03
- +120°#003122
- +240°#26224B
Triadic
Open in Harmony Studio- Base#451A03
- +150°#003030
- +210°#0C284C
Split-complementary
Open in Harmony StudioCode
Design tokens
Ready-to-paste tokens in six formats. Rename them to fit your system.
:root {
--color-amber-950: #451a03;
}// tailwind.config.js — already built in as amber-950;
// pin the v3 value explicitly like this:
module.exports = {
theme: {
extend: {
colors: {
amber: { 950: '#451a03' },
},
},
},
};/* app.css — Tailwind CSS v4 */
@import "tailwindcss";
@theme {
/* v4 has its own amber-950; this pins the v3 value. */
--color-amber-950: oklch(0.279 0.074 45.6);
}{
"color": {
"amber-950": {
"$type": "color",
"$value": {
"colorSpace": "srgb",
"components": [0.2706, 0.102, 0.0118],
"hex": "#451a03"
},
"$description": "Tailwind CSS v3 amber-950"
}
}
}import SwiftUI
enum Palette {
static let amber950 = Color(.sRGB, red: 0.271, green: 0.102, blue: 0.012, opacity: 1)
}import androidx.compose.ui.graphics.Color
object Palette {
val Amber950 = Color(0xFF451A03)
}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 #451A03 in the tools
Each opens over this page. More colors live in the Color Library, and every color page is listed on the hub.
- Color InspectorEvery format, its names, contrast and color vision in one panel.
- Contrast SystemBlack and white text on this color, with fixes in both directions.
- Harmony StudioPalettes built from this color, walked to a contrast target if you ask.
- Color Space ConverterThe same color in 34 notations, with its gamut headroom.
- Color Name FinderThe nearest of 1,055 color names by ΔE2000.