Tailwind CSS v3 color

Tailwind gray-950 #030712

Tailwind CSS v3's gray-950 is #030712. It is a very dark grayish blue in the neutral family. In OKLCH it sits at lightness 0.130, chroma 0.027 and hue 261.7°. The nearest CSS named color is black (#000000), ΔE2000 4.9 away.

Relative luminance
0.0021
OKLCH L · C · h
0.130 · 0.027 · 261.7
Best text
White 20.13:1
Hue family
Neutral
Inspect this color Check contrast

#030712 color codes

HEX
#030712
RGB
rgb(3, 7, 18)
HSL
hsl(224, 71%, 4%)
OKLCH
oklch(0.130 0.027 261.7)
OKLab
oklab(0.130 -0.004 -0.027)
CIELAB (D65)
L* 1.94, a* 0.75, b* -5.26
XYZ (D65)
X 0.22, Y 0.21, Z 0.60
CMYK (naive)
cmyk(83%, 61%, 0%, 93%)

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 #030712 accessible?

White text on it reaches 20.13:1, passing AAA. Black text fails at 1.04:1.

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

    1.04:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc 0

    Text is here, unreadable at 1.04:1

  • White text on it

    20.13:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −107

  • As text on black

    1.04:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc 0

    Text is here, unreadable at 1.04:1

  • As text on white

    20.13:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +105

Nearest versions that pass 4.5:1

  • For text on white

    #030712 20.13:1

    It already reaches 20.13:1 on white, so no change is needed.

  • For text on black

    #6C7585 4.52:1

    Lightening its OKLCH lightness from 0.13 to 0.56 reaches 4.52:1 on black, keeping the hue.

    Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #030712 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 #030712

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #030712 sits at step 950.

  1. 50#F0F5FF
    White
    1.09
    Black
    19.21
  2. 100#E3ECFB
    White
    1.18
    Black
    17.65
  3. 200#CFD8E8
    White
    1.43
    Black
    14.64
  4. 300#B5BECF
    White
    1.86
    Black
    11.23
  5. 400#98A2B3
    White
    2.57
    Black
    8.15
  6. 500#7D8797
    White
    3.63
    Black
    5.78
  7. 600#666F7F
    White
    5.06
    Black
    4.14
  8. 700#505867
    White
    7.16
    Black
    2.93
  9. 800#38404D
    White
    10.45
    Black
    2.00
  10. 900#232934
    White
    14.60
    Black
    1.43
  11. 950This color#030712
    White
    20.13
    Black
    1.04

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

Tailwind CSS v3 gray scale

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

  1. 50#F9FAFB
    White
    1.04
    Black
    20.09
  2. 100#F3F4F6
    White
    1.10
    Black
    19.08
  3. 200#E5E7EB
    White
    1.23
    Black
    16.96
  4. 300#D1D5DB
    White
    1.47
    Black
    14.25
  5. 400#9CA3AF
    White
    2.53
    Black
    8.27
  6. 500#6B7280
    White
    4.83
    Black
    4.34
  7. 600#4B5563
    White
    7.55
    Black
    2.77
  8. 700#374151
    White
    10.30
    Black
    2.03
  9. 800#1F2937
    White
    14.67
    Black
    1.43
  10. 900#111827
    White
    17.73
    Black
    1.18
  11. 950This color#030712
    White
    20.13
    Black
    1.04

Gamut

How vivid #030712 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.064; #030712 uses 42% of it. Display P3, which many recent phones and laptops show, reaches 0.080 there: 25% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.027
sRGB edge
0.064
Display P3 edge
0.080
Rec. 2020 edge
0.099
Dominant wavelength
474 nm
Excitation purity
49%
Chromaticity
x 0.2142, y 0.2068
  • This color#030712
  • Most vivid in sRGB#000420
  • Most vivid in Display P3oklch(0.130 0.080 261.7)

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

Use the wider color where screens show it
.accent {
  color: #030712;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0 0.0077 0.1437); }
}

Mixing

Mixing #030712

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%#818389
  • OKLab50%#71767E
  • OKLCH50%#71767E

Black #000000

  • sRGB50%#020409
  • OKLab50%#000102
  • OKLCH50%#000102

Its complement #0C0600

  • sRGB50%#080709
  • OKLab50%#070707
  • OKLCH50%#000A06
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #030712, white);
color: color-mix(in oklch, #030712 50%, white);

In use

#030712 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, 4.5:120.13:1 Passes
  • Link and body-size textText, 4.5:120.13:1 Passes
  • Large headingLarge text, 3:120.13:1 Passes
  • Icons, borders and focus ringsNon-text, 3:120.13:1 Passes

Dark page

  • Button labelText, 4.5:120.13:1 Passes
  • Link and body-size textText, 4.5:11.07:1 Fails
  • Large headingLarge text, 3:11.07:1 Fails
  • Icons, borders and focus ringsNon-text, 3:11.07:1 Fails

Color vision

How #030712 looks with color blindness

Tritanopia changes it most, ΔE2000 5.0; protanopia changes it least, 0.4.

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

    #040812 ΔE2000 0.4

    Imperceptible

    Reads as very dark grayish blue

  • Deuteranopia

    No working green (medium-wavelength) cones

    #030612 ΔE2000 0.6

    Imperceptible

    Reads as very dark grayish blue

  • Tritanopia

    No working blue (short-wavelength) cones

    #00090B ΔE2000 5.0

    Noticeable

    Reads as very dark grayish teal

  • Achromatopsia

    No cone color vision; lightness only

    #070707 ΔE2000 4.8

    Close match

    Reads as near-black

Pairing check

A near-neutral has no complementary hue to pair with, so tell it apart from neighboring grays by lightness contrast alone.

Harmony

Color harmonies for #030712

Its complement is #0C0600, a very dark grayish brown.

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

Open the Harmony Studio
  • Base#030712
  • Complement#0C0600

Complementary

Open in Harmony Studio
  • −30°#000910
  • Base#030712
  • +30°#070511

Analogous

Open in Harmony Studio
  • Base#030712
  • +120°#100404
  • +240°#030A02

Triadic

Open in Harmony Studio
  • Base#030712
  • +150°#0F0501
  • +210°#080800

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-gray-950: #030712;
}

Tailwind config

// tailwind.config.js — already built in as gray-950;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        gray: { 950: '#030712' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own gray-950; this pins the v3 value. */
  --color-gray-950: oklch(0.130 0.027 261.7);
}

Design token (W3C DTCG)

{
  "color": {
    "gray-950": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.0118, 0.0275, 0.0706],
        "hex": "#030712"
      },
      "$description": "Tailwind CSS v3 gray-950"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let gray950 = Color(.sRGB, red: 0.012, green: 0.027, blue: 0.071, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Gray950 = Color(0xFF030712)
}

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 #030712 in the tools

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