CSS named color

Cornflower Blue #6495ED

The CSS keyword cornflowerblue is #6495ED. It is a light soft blue in the blue family. In OKLCH it sits at lightness 0.675, chroma 0.141 and hue 261.3°.

Relative luminance: 0.3032
OKLCH L · C · h: 0.675 · 0.141 · 261.3
Best text: Black 7.06:1
Hue family: Blue

Inspect this color Check contrast

#6495ED color codes

HEX: #6495ED
RGB: rgb(100, 149, 237)
HSL: hsl(219, 79%, 66%)
OKLCH: oklch(0.675 0.141 261.3)
OKLab: oklab(0.675 -0.021 -0.140)
CIELAB (D65): L* 61.93, a* 9.33, b* -49.30
XYZ (D65): X 31.28, Y 30.32, Z 84.31
CMYK (naive): cmyk(58%, 37%, 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 #6495ED accessible?

Black text on it reaches 7.06:1, passing AAA. White text fails at 2.97:1.

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

7.06:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +47
White text on it

2.97:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc −61
As text on black

7.06:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −45
As text on white

2.97:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc +56

Nearest versions that pass 4.5:1

For text on white

#4674CA 4.55:1

Darkening its OKLCH lightness from 0.67 to 0.57 reaches 4.55:1 on white, keeping the hue.

Compare both in the Contrast System
For text on black

#6495ED 7.06:1

It already reaches 7.06:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #6495ED 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 #6495ED

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #6495ED sits at step 400.

50#F0F5FF

White
1.09
Black
19.21
100#E1ECFF

White
1.19
Black
17.64
200#C2D9FF

White
1.43
Black
14.66
300#99BEFF

White
1.88
Black
11.16
400This color#6495ED

White
2.97
Black
7.06
500#5484DA

White
3.69
Black
5.68
600#3E6CBF

White
5.11
Black
4.10
700#2954A3

White
7.26
Black
2.89
800#133A83

White
10.71
Black
1.96
900#012262

White
14.93
Black
1.40
950#00113E

White
18.26
Black
1.14

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

Gamut

How vivid #6495ED can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.172; #6495ED uses 82% of it. Display P3, which many recent phones and laptops show, reaches 0.186 there: 8% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.141
sRGB edge: 0.172
Display P3 edge: 0.186
Rec. 2020 edge: 0.188
Dominant wavelength: 474 nm
Excitation purity: 49%
Chromaticity: x 0.2144, y 0.2078

This color#6495ED
Most vivid in sRGB#5793FF
Most vivid in Display P3oklch(0.675 0.186 261.3)

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

Use the wider color where screens show it

.accent {
  color: #6495ed;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.3798 0.5648 1); }
}

Mixing

Mixing #6495ED

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%#B2CAF6
OKLab50%#B0CBF9
OKLCH50%#B0CBF9

Black #000000

sRGB50%#324B77
OKLab50%#22375C
OKLCH50%#22375C

Its complement #C28C00

sRGB50%#939177
OKLab50%#969797
OKLCH50%#D66FA1

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #6495ed, white);
color: color-mix(in oklch, #6495ed 50%, white);

In use

#6495ED 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, 4.5:17.06:1 Passes
Link and body-size textText, 4.5:12.97:1 Fails
Large headingLarge text, 3:12.97:1 Fails
Icons, borders and focus ringsNon-text, 3:12.97:1 Fails

For text on this page, the nearest shade that passes is #4674CA 4.55:1

Dark page

Button labelText, 4.5:17.06:1 Passes
Link and body-size textText, 4.5:16.30:1 Passes
Large headingLarge text, 3:16.30:1 Passes
Icons, borders and focus ringsNon-text, 3:16.30:1 Passes

Color vision

How #6495ED looks with color blindness

Tritanopia changes it most, ΔE2000 24.9; deuteranopia changes it least, 1.6.

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

#709DF1 ΔE2000 2.6

Close match

Reads as light soft blue
Deuteranopia

No working green (medium-wavelength) cones

#5E90EB ΔE2000 1.6

Very close

Reads as soft blue
Tritanopia

No working blue (short-wavelength) cones

#00A9B6 ΔE2000 24.9

Distinct

Reads as light soft cyan
Achromatopsia

No cone color vision; lightness only

#969696 ΔE2000 23.6

Distinct

Reads as gray

Pairing check

Checked against its complement, #C28C00. Their lightness contrast is only 1.00:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#6495ED · #C28C00	53.4	Stays distinct
Protanopia	#709DF1 · #A18D00	55.4	Stays distinct
Deuteranopia	#5E90EB · #AE9B0F	57.6	Stays distinct
Tritanopia	#00A9B6 · #D47C77	59.9	Stays distinct
Achromatopsia	#969696 · #959595	0.3	Easily confused

Harmony

Color harmonies for #6495ED

Its complement is #C28C00, a light soft amber, 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#6495ED
Complement#C28C00

Complementary

Open in Harmony Studio

−30°#00A4DB
Base#6495ED
+30°#9885E6

Analogous

Open in Harmony Studio

Base#6495ED
+120°#E06F70
+240°#61AC56

Triadic

Open in Harmony Studio

Base#6495ED
+150°#DA7A3B
+210°#9A9E1B

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-cornflowerblue: #6495ed;
}

Tailwind config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        cornflowerblue: '#6495ed',
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  --color-cornflowerblue: oklch(0.675 0.141 261.3);
}

Design token (W3C DTCG)

{
  "color": {
    "cornflowerblue": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.3922, 0.5843, 0.9294],
        "hex": "#6495ed"
      },
      "$description": "CSS named color cornflowerblue"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let cornflowerblue = Color(.sRGB, red: 0.392, green: 0.584, blue: 0.929, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Cornflowerblue = Color(0xFF6495ED)
}

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 #6495ED in the tools

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

Cornflower Blue #6495ED

#6495ED color codes

Contrast: is #6495ED 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 #6495ED live

Shades and tints of #6495ED

How vivid #6495ED can get

Mixing #6495ED

#6495ED in an interface

How #6495ED looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #6495ED

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 #6495ED in the tools