Tailwind CSS v3 color

Tailwind cyan-950 #083344

Tailwind CSS v3's cyan-950 is #083344. It is a dark muted blue in the blue family. In OKLCH it sits at lightness 0.302, chroma 0.054 and hue 229.7°. The nearest CSS named color is darkslategray (#2F4F4F), ΔE2000 12.8 away.

Relative luminance: 0.0284
OKLCH L · C · h: 0.302 · 0.054 · 229.7
Best text: White 13.39:1
Hue family: Blue

Inspect this color Check contrast

#083344 color codes

HEX: #083344
RGB: rgb(8, 51, 68)
HSL: hsl(197, 79%, 15%)
OKLCH: oklch(0.302 0.054 229.7)
OKLab: oklab(0.302 -0.035 -0.041)
CIELAB (D65): L* 19.38, a* -7.30, b* -14.66
XYZ (D65): X 2.33, Y 2.84, Z 5.89
CMYK (naive): cmyk(88%, 25%, 0%, 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 #083344 accessible?

White text on it reaches 13.39:1, passing AAA. Black text fails at 1.56:1.

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

1.56:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
White text on it

13.39:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −102
As text on black

1.56:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
As text on white

13.39:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +99

Nearest versions that pass 4.5:1

For text on white

#083344 13.39:1

It already reaches 13.39:1 on white, so no change is needed.
For text on black

#527A8D 4.52:1

Lightening its OKLCH lightness from 0.30 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 #083344 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 #083344

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #083344 sits at step 900.

50#EAF8FF

White
1.08
Black
19.36
100#D4F0FF

White
1.18
Black
17.70
200#B8DEF1

White
1.42
Black
14.75
300#9DC5D8

White
1.84
Black
11.41
400#7FA8BC

White
2.55
Black
8.22
500#648DA1

White
3.57
Black
5.86
600#4D7588

White
4.98
Black
4.21
700#375E70

White
7.00
Black
2.99
800#214555

White
10.25
Black
2.04
900This color#083344

White
13.39
Black
1.56
950#001925

White
18.01
Black
1.16

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

Tailwind CSS v3 cyan scale

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

50#ECFEFF
White
1.04
Black
20.18
100#CFFAFE
White
1.11
Black
18.75
200#A5F3FC
White
1.24
Black
16.82
300#67E8F9
White
1.44
Black
14.48
400#22D3EE
White
1.80
Black
11.62
500#06B6D4
White
2.42
Black
8.64
600#0891B2
White
3.68
Black
5.70
700#0E7490
White
5.35
Black
3.91
800#155E75
White
7.26
Black
2.88
900#164E63
White
9.11
Black
2.30
950This color#083344

White
13.39
Black
1.56

Gamut

How vivid #083344 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.060; #083344 uses 90% of it. Display P3, which many recent phones and laptops show, reaches 0.079 there: 32% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.054
sRGB edge: 0.060
Display P3 edge: 0.079
Rec. 2020 edge: 0.141
Dominant wavelength: 482 nm
Excitation purity: 44%
Chromaticity: x 0.2105, y 0.2565

This color#083344
Most vivid in sRGB#003346
Most vivid in Display P3oklch(0.302 0.079 229.7)

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

Use the wider color where screens show it

.accent {
  color: #083344;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0 0.2004 0.2962); }
}

Mixing

Mixing #083344

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%#8499A2
OKLab50%#7F939D
OKLCH50%#7F939D

Black #000000

sRGB50%#041A22
OKLab50%#010D14
OKLCH50%#010D14

Its complement #442514

sRGB50%#262C2C
OKLab50%#2E2E2E
OKLCH50%#3A253F

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #083344, white);
color: color-mix(in oklch, #083344 50%, white);

In use

#083344 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, 4.5:113.39:1 Passes
Link and body-size textText, 4.5:113.39:1 Passes
Large headingLarge text, 3:113.39:1 Passes
Icons, borders and focus ringsNon-text, 3:113.39:1 Passes

Dark page

Button labelText, 4.5:113.39:1 Passes
Link and body-size textText, 4.5:11.39:1 Fails
Large headingLarge text, 3:11.39:1 Fails
Icons, borders and focus ringsNon-text, 3:11.39:1 Fails

For text on this page, the nearest shade that passes is #5A8396 4.56:1

Color vision

How #083344 looks with color blindness

Achromatopsia changes it most, ΔE2000 12.9; tritanopia changes it least, 10.6.

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

#2A3245 ΔE2000 10.8

Distinct

Reads as dark grayish blue
Deuteranopia

No working green (medium-wavelength) cones

#222C44 ΔE2000 11.8

Distinct

Reads as very dark grayish blue
Tritanopia

No working blue (short-wavelength) cones

#003839 ΔE2000 10.6

Distinct

Reads as dark muted teal
Achromatopsia

No cone color vision; lightness only

#2F2F2F ΔE2000 12.9

Distinct

Reads as dark gray

Pairing check

Checked against its complement, #442514. 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	#083344 · #442514	31.2	Stays distinct
Protanopia	#2A3245 · #2E2912	23.6	Stays distinct
Deuteranopia	#222C44 · #352F14	27.2	Stays distinct
Tritanopia	#003839 · #4B1F21	38.1	Stays distinct
Achromatopsia	#2F2F2F · #2D2D2D	0.6	Easily confused

Harmony

Color harmonies for #083344

Its complement is #442514, a dark muted brown, on the warm 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#083344
Complement#442514

Complementary

Open in Harmony Studio

−30°#003638
Base#083344
+30°#1E2E49

Analogous

Open in Harmony Studio

Base#083344
+120°#422232
+240°#30300C

Triadic

Open in Harmony Studio

Base#083344
+150°#462223
+210°#3C2B09

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-cyan-950: #083344;
}

Tailwind config

// tailwind.config.js — already built in as cyan-950;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        cyan: { 950: '#083344' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own cyan-950; this pins the v3 value. */
  --color-cyan-950: oklch(0.302 0.054 229.7);
}

Design token (W3C DTCG)

{
  "color": {
    "cyan-950": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.0314, 0.2, 0.2667],
        "hex": "#083344"
      },
      "$description": "Tailwind CSS v3 cyan-950"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let cyan950 = Color(.sRGB, red: 0.031, green: 0.200, blue: 0.267, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Cyan950 = Color(0xFF083344)
}

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 #083344 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 cyan-950 #083344

#083344 color codes

Contrast: is #083344 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 #083344 live

Shades and tints of #083344

Tailwind CSS v3 cyan scale

How vivid #083344 can get

Mixing #083344

#083344 in an interface

How #083344 looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #083344

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 #083344 in the tools