Tailwind CSS v3 color

Tailwind cyan-400 #22D3EE

Tailwind CSS v3's cyan-400 is #22D3EE. It is a light soft cyan in the cyan family. In OKLCH it sits at lightness 0.797, chroma 0.134 and hue 211.5°. The nearest CSS named color is darkturquoise (#00CED1), ΔE2000 8.3 away.

Relative luminance
0.5310
OKLCH L · C · h
0.797 · 0.134 · 211.5
Best text
Black 11.62:1
Hue family
Cyan
Inspect this color Check contrast

#22D3EE color codes

HEX
#22D3EE
RGB
rgb(34, 211, 238)
HSL
hsl(188, 86%, 53%)
OKLCH
oklch(0.797 0.134 211.5)
OKLab
oklab(0.797 -0.114 -0.070)
CIELAB (D65)
L* 77.93, a* -32.13, b* -25.08
XYZ (D65)
X 39.38, Y 53.10, Z 89.05
CMYK (naive)
cmyk(86%, 11%, 0%, 7%)

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 #22D3EE accessible?

Black text on it reaches 11.62:1, passing AAA. White text fails at 1.80:1.

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

    11.62:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +70

  • White text on it

    1.80:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −37

  • As text on black

    11.62:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −69

  • As text on white

    1.80:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +33

Nearest versions that pass 4.5:1

  • For text on white

    #008294 4.54:1

    Darkening its OKLCH lightness from 0.80 to 0.56 reaches 4.54:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #22D3EE 11.62:1

    It already reaches 11.62:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #22D3EE 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 #22D3EE

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #22D3EE sits at step 300.

  1. 50#E3FAFF
    White
    1.08
    Black
    19.38
  2. 100#C5F5FF
    White
    1.17
    Black
    17.87
  3. 200#7DEAFF
    White
    1.39
    Black
    15.08
  4. 300This color#22D3EE
    White
    1.80
    Black
    11.62
  5. 400#00B5CE
    White
    2.47
    Black
    8.50
  6. 500#0097AB
    White
    3.49
    Black
    6.01
  7. 600#007D8E
    White
    4.85
    Black
    4.32
  8. 700#006372
    White
    6.93
    Black
    3.02
  9. 800#004853
    White
    10.23
    Black
    2.05
  10. 900#002F37
    White
    14.36
    Black
    1.46
  11. 950#001A1F
    White
    17.98
    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.

  1. 50#ECFEFF
    White
    1.04
    Black
    20.18
  2. 100#CFFAFE
    White
    1.11
    Black
    18.75
  3. 200#A5F3FC
    White
    1.24
    Black
    16.82
  4. 300#67E8F9
    White
    1.44
    Black
    14.48
  5. 400This color#22D3EE
    White
    1.80
    Black
    11.62
  6. 500#06B6D4
    White
    2.42
    Black
    8.64
  7. 600#0891B2
    White
    3.68
    Black
    5.70
  8. 700#0E7490
    White
    5.35
    Black
    3.91
  9. 800#155E75
    White
    7.26
    Black
    2.88
  10. 900#164E63
    White
    9.11
    Black
    2.30
  11. 950#083344
    White
    13.39
    Black
    1.56

Gamut

How vivid #22D3EE can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.139; #22D3EE uses 97% of it. Display P3, which many recent phones and laptops show, reaches 0.185 there: 33% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.134
sRGB edge
0.139
Display P3 edge
0.185
Rec. 2020 edge
0.197
Dominant wavelength
487 nm
Excitation purity
38%
Chromaticity
x 0.2169, y 0.2925
  • This color#22D3EE
  • Most vivid in sRGB#00D4F0
  • Most vivid in Display P3oklch(0.797 0.185 211.5)

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

Use the wider color where screens show it
.accent {
  color: #22d3ee;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0 0.8373 0.9858); }
}

Mixing

Mixing #22D3EE

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%#91E9F7
  • OKLab50%#AAEAF7
  • OKLCH50%#AAEAF7

Black #000000

  • sRGB50%#116A77
  • OKLab50%#07515C
  • OKLCH50%#07515C

Its complement #FFA08E

  • sRGB50%#91BABE
  • OKLab50%#B7BEC0
  • OKLCH50%#CBAAFF
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #22d3ee, white);
color: color-mix(in oklch, #22d3ee 50%, white);

In use

#22D3EE 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, 4.5:111.62:1 Passes
  • Link and body-size textText, 4.5:11.80:1 Fails
  • Large headingLarge text, 3:11.80:1 Fails
  • Icons, borders and focus ringsNon-text, 3:11.80:1 Fails

For text on this page, the nearest shade that passes is #008294 4.54:1

Dark page

  • Button labelText, 4.5:111.62:1 Passes
  • Link and body-size textText, 4.5:110.36:1 Passes
  • Large headingLarge text, 3:110.36:1 Passes
  • Icons, borders and focus ringsNon-text, 3:110.36:1 Passes

Color vision

How #22D3EE looks with color blindness

Achromatopsia changes it most, ΔE2000 23.1; tritanopia changes it least, 10.5.

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

    #BECBF0 ΔE2000 23.1

    Distinct

    Reads as pale muted blue

  • Deuteranopia

    No working green (medium-wavelength) cones

    #A4B9EE ΔE2000 22.7

    Distinct

    Reads as light muted blue

  • Tritanopia

    No working blue (short-wavelength) cones

    #00DEDB ΔE2000 10.5

    Distinct

    Reads as light soft cyan

  • Achromatopsia

    No cone color vision; lightness only

    #C1C1C1 ΔE2000 23.1

    Distinct

    Reads as light gray

Pairing check

Checked against its complement, #FFA08E. Their lightness contrast is only 1.08:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#22D3EE · #FFA08E60.0Stays distinct
Protanopia#BECBF0 · #B6AD8C30.1Stays distinct
Deuteranopia#A4B9EE · #CDC08D38.0Stays distinct
Tritanopia#00DEDB · #FF929B58.3Stays distinct
Achromatopsia#C1C1C1 · #B9B9B92.1Easily confused

Harmony

Color harmonies for #22D3EE

Its complement is #FFA08E, a light soft red, 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#22D3EE
  • Complement#FFA08E

Complementary

Open in Harmony Studio
  • −30°#31D8C2
  • Base#22D3EE
  • +30°#77C6FF

Analogous

Open in Harmony Studio
  • Base#22D3EE
  • +120°#EF9CE4
  • +240°#DCB94A

Triadic

Open in Harmony Studio
  • Base#22D3EE
  • +150°#FF9AB7
  • +210°#FAA85C

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-400: #22d3ee;
}

Tailwind config

// tailwind.config.js — already built in as cyan-400;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        cyan: { 400: '#22d3ee' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own cyan-400; this pins the v3 value. */
  --color-cyan-400: oklch(0.797 0.134 211.5);
}

Design token (W3C DTCG)

{
  "color": {
    "cyan-400": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.1333, 0.8275, 0.9333],
        "hex": "#22d3ee"
      },
      "$description": "Tailwind CSS v3 cyan-400"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let cyan400 = Color(.sRGB, red: 0.133, green: 0.827, blue: 0.933, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Cyan400 = Color(0xFF22D3EE)
}

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 #22D3EE in the tools

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