CSS named color

Medium Slate Blue #7B68EE

The CSS keyword mediumslateblue is #7B68EE. It is a vivid violet in the violet family. In OKLCH it sits at lightness 0.604, chroma 0.194 and hue 285.5°.

Relative luminance: 0.2028
OKLCH L · C · h: 0.604 · 0.194 · 285.5
Best text: Black 5.05:1
Hue family: Violet

Inspect this color Check contrast

#7B68EE color codes

HEX: #7B68EE
RGB: rgb(123, 104, 238)
HSL: hsl(249, 80%, 67%)
OKLCH: oklch(0.604 0.194 285.5)
OKLab: oklab(0.604 0.052 -0.187)
CIELAB (D65): L* 52.16, a* 41.07, b* -65.40
XYZ (D65): X 28.55, Y 20.28, Z 83.28
CMYK (naive): cmyk(48%, 56%, 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 #7B68EE accessible?

Black text on it reaches 5.05:1, passing AA. White text manages only 4.15:1, 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

5.05:1
- AA passes
- AA large passes
- AAA fails
- APCA Lc +35
White text on it

4.15:1
- AA fails
- AA large passes
- AAA fails
- APCA Lc −73
As text on black

5.05:1
- AA passes
- AA large passes
- AAA fails
- APCA Lc −33
As text on white

4.15:1
- AA fails
- AA large passes
- AAA fails
- APCA Lc +68

Nearest versions that pass 4.5:1

For text on white

#7562E7 4.50:1

Darkening its OKLCH lightness from 0.60 to 0.58 reaches 4.50:1 on white, keeping the hue.

Compare both in the Contrast System
For text on black

#7B68EE 5.05:1

It already reaches 5.05:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #7B68EE 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 #7B68EE

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #7B68EE sits at step 500.

50#F4F4FF

White
1.09
Black
19.23
100#E9E9FF

White
1.19
Black
17.56
200#D3D2FF

White
1.45
Black
14.43
300#B7B4FF

White
1.91
Black
10.98
400#9A90FF

White
2.68
Black
7.80
500This color#7B68EE

White
4.15
Black
5.05
600#6954D7

White
5.45
Black
3.85
700#543BBA

White
7.74
Black
2.71
800#3E2097

White
11.30
Black
1.85
900#2A0073

White
15.60
Black
1.34
950#170047

White
18.62
Black
1.12

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

Gamut

How vivid #7B68EE can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.225; #7B68EE uses 86% of it. Display P3, which many recent phones and laptops show, reaches 0.243 there: 8% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.194
sRGB edge: 0.225
Display P3 edge: 0.243
Rec. 2020 edge: 0.246
Dominant wavelength: 458 nm
Excitation purity: 58%
Chromaticity: x 0.2161, y 0.1535

This color#7B68EE
Most vivid in sRGB#7C60FF
Most vivid in Display P3oklch(0.604 0.243 285.5)

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

Use the wider color where screens show it

.accent {
  color: #7b68ee;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.4674 0.3598 1); }
}

Mixing

Mixing #7B68EE

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%#BDB4F7
OKLab50%#B8B6FB
OKLCH50%#B8B6FB

Black #000000

sRGB50%#3E3477
OKLab50%#2C245C
OKLCH50%#2C245C

Its complement #8D8500

sRGB50%#847777
OKLab50%#7F7F95
OKLCH50%#D05061

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #7b68ee, white);
color: color-mix(in oklch, #7b68ee 50%, white);

In use

#7B68EE 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, 4.5:15.05:1 Passes
Link and body-size textText, 4.5:14.15:1 Fails
Large headingLarge text, 3:14.15:1 Passes
Icons, borders and focus ringsNon-text, 3:14.15:1 Passes

For text on this page, the nearest shade that passes is #7562E7 4.50:1

Dark page

Button labelText, 4.5:15.05:1 Passes
Link and body-size textText, 4.5:14.51:1 Passes
Large headingLarge text, 3:14.51:1 Passes
Icons, borders and focus ringsNon-text, 3:14.51:1 Passes

Color vision

How #7B68EE looks with color blindness

Achromatopsia changes it most, ΔE2000 28.2; deuteranopia changes it least, 15.3.

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

#0280F2 ΔE2000 16.7

Distinct

Reads as vivid blue
Deuteranopia

No working green (medium-wavelength) cones

#0078EB ΔE2000 15.3

Distinct

Reads as vivid blue
Tritanopia

No working blue (short-wavelength) cones

#5286A1 ΔE2000 15.5

Distinct

Reads as muted blue
Achromatopsia

No cone color vision; lightness only

#7C7C7C ΔE2000 28.2

Distinct

Reads as gray

Pairing check

Checked against its complement, #8D8500. Their lightness contrast is only 1.08:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#7B68EE · #8D8500	67.8	Stays distinct
Protanopia	#0280F2 · #928000	59.3	Stays distinct
Deuteranopia	#0078EB · #958414	59.5	Stays distinct
Tritanopia	#5286A1 · #997B70	31.2	Stays distinct
Achromatopsia	#7C7C7C · #828282	2.3	Easily confused

Harmony

Color harmonies for #7B68EE

Its complement is #8D8500, a soft yellow.

Hue rotations in OKLCH, mapped into sRGB by trimming chroma so hue and lightness stay put.

Open the Harmony Studio

Base#7B68EE
Complement#8D8500

Complementary

Open in Harmony Studio

−30°#147FF1
Base#7B68EE
+30°#AC54CE

Analogous

Open in Harmony Studio

Base#7B68EE
+120°#D05700
+240°#00996F

Triadic

Open in Harmony Studio

Base#7B68EE
+150°#AD7500
+210°#4B9700

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-mediumslateblue: #7b68ee;
}

Tailwind config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        mediumslateblue: '#7b68ee',
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  --color-mediumslateblue: oklch(0.604 0.194 285.5);
}

Design token (W3C DTCG)

{
  "color": {
    "mediumslateblue": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.4824, 0.4078, 0.9333],
        "hex": "#7b68ee"
      },
      "$description": "CSS named color mediumslateblue"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let mediumslateblue = Color(.sRGB, red: 0.482, green: 0.408, blue: 0.933, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Mediumslateblue = Color(0xFF7B68EE)
}

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 #7B68EE in the tools

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

Medium Slate Blue #7B68EE

#7B68EE color codes

Contrast: is #7B68EE 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 #7B68EE live

Shades and tints of #7B68EE

How vivid #7B68EE can get

Mixing #7B68EE

#7B68EE in an interface

How #7B68EE looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #7B68EE

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 #7B68EE in the tools