CSS named color

Dodger Blue #1E90FF

The CSS keyword dodgerblue is #1E90FF. It is a vivid blue in the blue family. In OKLCH it sits at lightness 0.652, chroma 0.190 and hue 253.2°.

Relative luminance: 0.2744
OKLCH L · C · h: 0.652 · 0.190 · 253.2
Best text: Black 6.48:1
Hue family: Blue

Inspect this color Check contrast

#1E90FF color codes

HEX: #1E90FF
RGB: rgb(30, 144, 255)
HSL: hsl(210, 100%, 56%)
OKLCH: oklch(0.652 0.190 253.2)
OKLab: oklab(0.652 -0.055 -0.182)
CIELAB (D65): L* 59.38, a* 9.96, b* -63.39
XYZ (D65): X 28.55, Y 27.44, Z 98.38
CMYK (naive): cmyk(88%, 44%, 0%, 0%)

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 #1E90FF accessible?

Black text on it reaches 6.48:1, passing AA. White text manages only 3.23:1, enough for large text only.

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

6.48:1
- AA passes
- AA large passes
- AAA fails
- APCA Lc +45
White text on it

3.23:1
- AA fails
- AA large passes
- AAA fails
- APCA Lc −64
As text on black

6.48:1
- AA passes
- AA large passes
- AAA fails
- APCA Lc −42
As text on white

3.23:1
- AA fails
- AA large passes
- AAA fails
- APCA Lc +58

Nearest versions that pass 4.5:1

For text on white

#0076DA 4.56:1

Darkening its OKLCH lightness from 0.65 to 0.57 reaches 4.56:1 on white, keeping the hue.

Compare both in the Contrast System
For text on black

#1E90FF 6.48:1

It already reaches 6.48:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #1E90FF 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 #1E90FF

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #1E90FF sits at step 500.

50#EEF6FF

White
1.09
Black
19.26
100#DEEDFF

White
1.18
Black
17.66
200#BCDBFF

White
1.42
Black
14.71
300#8EC2FF

White
1.85
Black
11.31
400#54A4FF

White
2.58
Black
8.13
500This color#1E90FF

White
3.23
Black
6.48
600#006ECC

White
5.11
Black
4.10
700#0058A5

White
7.14
Black
2.93
800#003F7A

White
10.54
Black
1.99
900#002952

White
14.59
Black
1.43
950#001631

White
18.11
Black
1.15

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

Gamut

How vivid #1E90FF can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.190; #1E90FF uses 100% of it. Display P3, which many recent phones and laptops show, reaches 0.205 there: 8% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.190
sRGB edge: 0.190
Display P3 edge: 0.205
Rec. 2020 edge: 0.208
Dominant wavelength: 475 nm
Excitation purity: 63%
Chromaticity: x 0.1850, y 0.1777

This color#1E90FF
Most vivid in sRGB#1E90FF
Most vivid in Display P3oklch(0.652 0.205 253.2)

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

Use the wider color where screens show it

.accent {
  color: #1e90ff;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.2386 0.5518 1); }
}

Mixing

Mixing #1E90FF

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%#8FC8FF
OKLab50%#9ACAFF
OKLCH50%#9DCAFF

Black #000000

sRGB50%#0F4880
OKLab50%#053463
OKLCH50%#053463

Its complement #C28000

sRGB50%#708880
OKLab50%#8591A0
OKLCH50%#D261AA

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #1e90ff, white);
color: color-mix(in oklch, #1e90ff 50%, white);

In use

#1E90FF 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, 4.5:16.48:1 Passes
Link and body-size textText, 4.5:13.23:1 Fails
Large headingLarge text, 3:13.23:1 Passes
Icons, borders and focus ringsNon-text, 3:13.23:1 Passes

For text on this page, the nearest shade that passes is #0076DA 4.56:1

Dark page

Button labelText, 4.5:16.48:1 Passes
Link and body-size textText, 4.5:15.78:1 Passes
Large headingLarge text, 3:15.78:1 Passes
Icons, borders and focus ringsNon-text, 3:15.78:1 Passes

Color vision

How #1E90FF looks with color blindness

Achromatopsia changes it most, ΔE2000 26.3; deuteranopia changes it least, 3.6.

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

#5599FF ΔE2000 4.2

Close match

Reads as light soft blue
Deuteranopia

No working green (medium-wavelength) cones

#2386FD ΔE2000 3.6

Close match

Reads as vivid blue
Tritanopia

No working blue (short-wavelength) cones

#00ABBB ΔE2000 25.0

Distinct

Reads as light soft cyan
Achromatopsia

No cone color vision; lightness only

#8F8F8F ΔE2000 26.3

Distinct

Reads as gray

Pairing check

Checked against its complement, #C28000. Their lightness contrast is only 1.01:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#1E90FF · #C28000	54.8	Stays distinct
Protanopia	#5599FF · #978400	57.8	Stays distinct
Deuteranopia	#2386FD · #A7940A	61.5	Stays distinct
Tritanopia	#00ABBB · #D46F6D	62.4	Stays distinct
Achromatopsia	#8F8F8F · #8E8E8E	0.3	Easily confused

Harmony

Color harmonies for #1E90FF

Its complement is #C28000, a soft orange, 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#1E90FF
Complement#C28000

Complementary

Open in Harmony Studio

−30°#009FC6
Base#1E90FF
+30°#847AFE

Analogous

Open in Harmony Studio

Base#1E90FF
+120°#EC516E
+240°#5FA600

Triadic

Open in Harmony Studio

Base#1E90FF
+150°#EA5D07
+210°#9F9200

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-dodgerblue: #1e90ff;
}

Tailwind config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        dodgerblue: '#1e90ff',
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  --color-dodgerblue: oklch(0.652 0.190 253.2);
}

Design token (W3C DTCG)

{
  "color": {
    "dodgerblue": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.1176, 0.5647, 1],
        "hex": "#1e90ff"
      },
      "$description": "CSS named color dodgerblue"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let dodgerblue = Color(.sRGB, red: 0.118, green: 0.565, blue: 1.000, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Dodgerblue = Color(0xFF1E90FF)
}

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 #1E90FF in the tools

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

Dodger Blue #1E90FF

#1E90FF color codes

Contrast: is #1E90FF 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 #1E90FF live

Shades and tints of #1E90FF

How vivid #1E90FF can get

Mixing #1E90FF

#1E90FF in an interface

How #1E90FF looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #1E90FF

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 #1E90FF in the tools