Tailwind CSS v3 color

Tailwind sky-800 #075985

Tailwind CSS v3's sky-800 is #075985. It is a dark soft blue in the blue family. In OKLCH it sits at lightness 0.443, chroma 0.100 and hue 240.8°. The nearest CSS named color is royalblue (#4169E1), ΔE2000 14.6 away.

Relative luminance: 0.0888
OKLCH L · C · h: 0.443 · 0.100 · 240.8
Best text: White 7.56:1
Hue family: Blue

Inspect this color Check contrast

#075985 color codes

HEX: #075985
RGB: rgb(7, 89, 133)
HSL: hsl(201, 90%, 27%)
OKLCH: oklch(0.443 0.100 240.8)
OKLab: oklab(0.443 -0.049 -0.087)
CIELAB (D65): L* 35.76, a* -4.96, b* -30.71
XYZ (D65): X 7.89, Y 8.88, Z 23.48
CMYK (naive): cmyk(95%, 33%, 0%, 48%)

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 #075985 accessible?

White text on it reaches 7.56:1, passing AAA. Black text fails at 2.77:1.

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

2.77:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc +18
White text on it

7.56:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −90
As text on black

2.77:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc −16
As text on white

7.56:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +85

Nearest versions that pass 4.5:1

For text on white

#075985 7.56:1

It already reaches 7.56:1 on white, so no change is needed.
For text on black

#357BA9 4.55:1

Lightening its OKLCH lightness from 0.44 to 0.56 reaches 4.55:1 on black, keeping the hue.

Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #075985 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 #075985

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #075985 sits at step 700.

50#ECF7FF

White
1.08
Black
19.31
100#D9EFFF

White
1.18
Black
17.74
200#B2DEFF

White
1.42
Black
14.78
300#85C6F5

White
1.84
Black
11.39
400#66A9D9

White
2.54
Black
8.24
500#488DBD

White
3.60
Black
5.82
600#2F75A3

White
5.00
Black
4.19
700This color#075985

White
7.56
Black
2.77
800#004468

White
10.36
Black
2.02
900#002C46

White
14.49
Black
1.44
950#001829

White
18.06
Black
1.16

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

Tailwind CSS v3 sky scale

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

50#F0F9FF
White
1.06
Black
19.69
100#E0F2FE
White
1.14
Black
18.30
200#BAE6FD
White
1.32
Black
15.82
300#7DD3FC
White
1.66
Black
12.59
400#38BDF8
White
2.14
Black
9.80
500#0EA5E9
White
2.77
Black
7.57
600#0284C7
White
4.09
Black
5.12
700#0369A1
White
5.93
Black
3.53
800This color#075985

White
7.56
Black
2.77
900#0C4A6E
White
9.45
Black
2.22
950#082F49
White
13.87
Black
1.51

Gamut

How vivid #075985 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.103; #075985 uses 97% of it. Display P3, which many recent phones and laptops show, reaches 0.135 there: 31% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.100
sRGB edge: 0.103
Display P3 edge: 0.135
Rec. 2020 edge: 0.268
Dominant wavelength: 479 nm
Excitation purity: 53%
Chromaticity: x 0.1960, y 0.2206

This color#075985
Most vivid in sRGB#005986
Most vivid in Display P3oklch(0.443 0.135 240.8)

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

Use the wider color where screens show it

.accent {
  color: #075985;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0 0.3422 0.5681); }
}

Mixing

Mixing #075985

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%#83ACC2
OKLab50%#8AAAC2
OKLCH50%#8AAAC2

Black #000000

sRGB50%#042D43
OKLab50%#011D30
OKLCH50%#011D30

Its complement #7A4406

sRGB50%#414F46
OKLab50%#535353
OKLCH50%#1F6235

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #075985, white);
color: color-mix(in oklch, #075985 50%, white);

In use

#075985 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, 4.5:17.56:1 Passes
Link and body-size textText, 4.5:17.56:1 Passes
Large headingLarge text, 3:17.56:1 Passes
Icons, borders and focus ringsNon-text, 3:17.56:1 Passes

Dark page

Button labelText, 4.5:17.56:1 Passes
Link and body-size textText, 4.5:12.47:1 Fails
Large headingLarge text, 3:12.47:1 Fails
Icons, borders and focus ringsNon-text, 3:12.47:1 Fails

For text on this page, the nearest shade that passes is #3E84B2 4.59:1

Color vision

How #075985 looks with color blindness

Achromatopsia changes it most, ΔE2000 18.4; deuteranopia changes it least, 8.6.

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

#445A87 ΔE2000 9.3

Noticeable

Reads as dark muted blue
Deuteranopia

No working green (medium-wavelength) cones

#334F84 ΔE2000 8.6

Noticeable

Reads as dark muted blue
Tritanopia

No working blue (short-wavelength) cones

#006469 ΔE2000 16.8

Distinct

Reads as dark muted teal
Achromatopsia

No cone color vision; lightness only

#545454 ΔE2000 18.4

Distinct

Reads as dark gray

Pairing check

Checked against its complement, #7A4406. Their lightness contrast is only 1.04:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#075985 · #7A4406	41.4	Stays distinct
Protanopia	#445A87 · #554A00	42.4	Stays distinct
Deuteranopia	#334F84 · #615606	45.5	Stays distinct
Tritanopia	#006469 · #863739	43.6	Stays distinct
Achromatopsia	#545454 · #515151	1.0	Easily confused

Harmony

Color harmonies for #075985

Its complement is #7A4406, 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#075985
Complement#7A4406

Complementary

Open in Harmony Studio

−30°#005E6B
Base#075985
+30°#3F4F8A

Analogous

Open in Harmony Studio

Base#075985
+120°#7F3950
+240°#4C5B0C

Triadic

Open in Harmony Studio

Base#075985
+150°#823B30
+210°#665100

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-sky-800: #075985;
}

Tailwind config

// tailwind.config.js — already built in as sky-800;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        sky: { 800: '#075985' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own sky-800; this pins the v3 value. */
  --color-sky-800: oklch(0.443 0.100 240.8);
}

Design token (W3C DTCG)

{
  "color": {
    "sky-800": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.0275, 0.349, 0.5216],
        "hex": "#075985"
      },
      "$description": "Tailwind CSS v3 sky-800"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let sky800 = Color(.sRGB, red: 0.027, green: 0.349, blue: 0.522, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Sky800 = Color(0xFF075985)
}

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 #075985 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 sky-800 #075985

#075985 color codes

Contrast: is #075985 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 #075985 live

Shades and tints of #075985

Tailwind CSS v3 sky scale

How vivid #075985 can get

Mixing #075985

#075985 in an interface

How #075985 looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #075985

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 #075985 in the tools