Tailwind CSS v3 color

Tailwind violet-700 #6D28D9

Tailwind CSS v3's violet-700 is #6D28D9. It is a vivid violet in the violet family. In OKLCH it sits at lightness 0.491, chroma 0.241 and hue 292.6°. The nearest CSS named color is blueviolet (#8A2BE2), ΔE2000 4.9 away.

Relative luminance
0.0978
OKLCH L · C · h
0.491 · 0.241 · 292.6
Best text
White 7.10:1
Hue family
Violet
Inspect this color Check contrast

#6D28D9 color codes

HEX
#6D28D9
RGB
rgb(109, 40, 217)
HSL
hsl(263, 70%, 50%)
OKLCH
oklch(0.491 0.241 292.6)
OKLab
oklab(0.491 0.093 -0.223)
CIELAB (D65)
L* 37.44, a* 64.98, b* -77.54
XYZ (D65)
X 19.59, Y 9.78, Z 66.49
CMYK (naive)
cmyk(50%, 82%, 0%, 15%)

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 #6D28D9 accessible?

White text on it reaches 7.10:1, passing AAA. Black text fails at 2.95:1.

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

    2.95:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +20

  • White text on it

    7.10:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −88

  • As text on black

    2.95:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −18

  • As text on white

    7.10:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +83

Nearest versions that pass 4.5:1

  • For text on white

    #6D28D9 7.10:1

    It already reaches 7.10:1 on white, so no change is needed.

  • For text on black

    #884FFC 4.57:1

    Lightening its OKLCH lightness from 0.49 to 0.59 reaches 4.57:1 on black, keeping the hue.

    Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #6D28D9 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 #6D28D9

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #6D28D9 sits at step 700.

  1. 50#F5F3FF
    White
    1.09
    Black
    19.14
  2. 100#EBE8FF
    White
    1.19
    Black
    17.51
  3. 200#D8D0FF
    White
    1.45
    Black
    14.38
  4. 300#C0B0FF
    White
    1.92
    Black
    10.89
  5. 400#A68AFF
    White
    2.72
    Black
    7.70
  6. 500#8F5FFF
    White
    4.00
    Black
    5.24
  7. 600#7A3DEA
    White
    5.70
    Black
    3.68
  8. 700This color#6D28D9
    White
    7.10
    Black
    2.95
  9. 800#4B009F
    White
    11.66
    Black
    1.79
  10. 900#31006D
    White
    15.53
    Black
    1.35
  11. 950#1B0043
    White
    18.62
    Black
    1.12

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

Tailwind CSS v3 violet scale

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

  1. 50#F5F3FF
    White
    1.09
    Black
    19.14
  2. 100#EDE9FE
    White
    1.18
    Black
    17.68
  3. 200#DDD6FE
    White
    1.38
    Black
    15.12
  4. 300#C4B5FD
    White
    1.84
    Black
    11.37
  5. 400#A78BFA
    White
    2.72
    Black
    7.71
  6. 500#8B5CF6
    White
    4.23
    Black
    4.95
  7. 600#7C3AED
    White
    5.69
    Black
    3.68
  8. 700This color#6D28D9
    White
    7.10
    Black
    2.95
  9. 800#5B21B6
    White
    8.98
    Black
    2.33
  10. 900#4C1D95
    White
    10.95
    Black
    1.91
  11. 950#2E1065
    White
    15.23
    Black
    1.37

Gamut

How vivid #6D28D9 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.273; #6D28D9 uses 88% of it. Display P3, which many recent phones and laptops show, reaches 0.282 there: 3% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.241
sRGB edge
0.273
Display P3 edge
0.282
Rec. 2020 edge
0.307
Dominant wavelength
444 nm
Excitation purity
72%
Chromaticity
x 0.2043, y 0.1020
  • This color#6D28D9
  • Most vivid in sRGB#7000E9
  • Most vivid in Display P3oklch(0.491 0.282 292.6)

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

Use the wider color where screens show it
.accent {
  color: #6d28d9;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.404 0 0.8916); }
}

Mixing

Mixing #6D28D9

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%#B694EC
  • OKLab50%#AF9EF2
  • OKLCH50%#AF9EF2

Black #000000

  • sRGB50%#37146D
  • OKLab50%#260953
  • OKLCH50%#260953

Its complement #626600

  • sRGB50%#68476D
  • OKLab50%#625983
  • OKLCH50%#AE212E
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #6d28d9, white);
color: color-mix(in oklch, #6d28d9 50%, white);

In use

#6D28D9 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, 4.5:17.10:1 Passes
  • Link and body-size textText, 4.5:17.10:1 Passes
  • Large headingLarge text, 3:17.10:1 Passes
  • Icons, borders and focus ringsNon-text, 3:17.10:1 Passes

Dark page

  • Button labelText, 4.5:17.10:1 Passes
  • Link and body-size textText, 4.5:12.63:1 Fails
  • Large headingLarge text, 3:12.63:1 Fails
  • Icons, borders and focus ringsNon-text, 3:12.63:1 Fails

For text on this page, the nearest shade that passes is #8E5CFF 4.57:1

Color vision

How #6D28D9 looks with color blindness

Achromatopsia changes it most, ΔE2000 30.9; deuteranopia changes it least, 15.2.

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

    #005ADE ΔE2000 16.1

    Distinct

    Reads as vivid blue

  • Deuteranopia

    No working green (medium-wavelength) cones

    #0055D6 ΔE2000 15.2

    Distinct

    Reads as vivid blue

  • Tritanopia

    No working blue (short-wavelength) cones

    #495D83 ΔE2000 19.1

    Distinct

    Reads as dark muted blue

  • Achromatopsia

    No cone color vision; lightness only

    #585858 ΔE2000 30.9

    Distinct

    Reads as dark gray

Pairing check

Checked against its complement, #626600. Their lightness contrast is only 1.15:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#6D28D9 · #62660072.0Stays distinct
Protanopia#005ADE · #6F610060.8Stays distinct
Deuteranopia#0055D6 · #6F630E60.0Stays distinct
Tritanopia#495D83 · #6A5F5621.4Stays distinct
Achromatopsia#585858 · #6262623.6Easily confused

Harmony

Color harmonies for #6D28D9

Its complement is #626600, a soft yellow.

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

Open the Harmony Studio
  • Base#6D28D9
  • Complement#626600

Complementary

Open in Harmony Studio
  • −30°#004BE4
  • Base#6D28D9
  • +30°#9900AB

Analogous

Open in Harmony Studio
  • Base#6D28D9
  • +120°#964800
  • +240°#00725B

Triadic

Open in Harmony Studio
  • Base#6D28D9
  • +150°#7C5A00
  • +210°#007601

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-violet-700: #6d28d9;
}

Tailwind config

// tailwind.config.js — already built in as violet-700;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        violet: { 700: '#6d28d9' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own violet-700; this pins the v3 value. */
  --color-violet-700: oklch(0.491 0.241 292.6);
}

Design token (W3C DTCG)

{
  "color": {
    "violet-700": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.4275, 0.1569, 0.851],
        "hex": "#6d28d9"
      },
      "$description": "Tailwind CSS v3 violet-700"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let violet700 = Color(.sRGB, red: 0.427, green: 0.157, blue: 0.851, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Violet700 = Color(0xFF6D28D9)
}

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 #6D28D9 in the tools

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