#371AB3#371AB3

#371AB3 is a dark, highly saturated violet. Relative luminance 0.048; OKLCH L 38.9% C 0.216 H 278.0°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#371AB3
RGB	rgb(55, 26, 179)
HSL	hsl(251, 75%, 40%)
HSV	hsv(251, 85%, 70%)
CMYK	cmyk(69.3%, 85.5%, 0%, 29.8%)
CIE-LAB	lab(26.17, 54.89, -74.07)
CIE-LCH	lch(26.17, 92.19, 306.54°)
OKLab	oklab(38.86% 0.0301 -0.2139)
OKLCH	oklch(38.86% 0.216 278)
XYZ	xyz(10.0790, 4.8048, 43.0353)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371AB3 #96B31A

analogous

#1A49B3 #371AB3 #841AB3

triadic

#371AB3 #B3371A #1AB337

tetradic

#371AB3 #B31A49 #96B31A #1AB384

square

#371AB3 #B31A49 #96B31A #1AB384

split-complementary

#371AB3 #B3841A #49B31A

monochromatic

#160A48 #27127E #371AB3 #4D2AE0 #7960E8

Accessibility & contrast

On white

10.71

#371AB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#371AB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371AB3

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371AB3	#FFFFFF	#000000	##FFFFFF
##371AB3	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B7

Deuteranopia (green-blind)

#0038B0

Tritanopia (blue-blind)

#004C6A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #371ab3;
/* rgb */ color: rgb(55, 26, 179);
/* oklch */ color: oklch(38.9% 0.216 278.0);

Tailwind

colors: {
  custom: {
    50: '#815ecb',
    500: '#371ab3',
    950: '#000000',
  },
}

SCSS

$custom: #371ab3;
$custom-light: #815ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#371ab3",
  "rgb": {
    "r": 55,
    "g": 26,
    "b": 179
  },
  "hsl": {
    "h": 251.373,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38856,
    "c": 0.216,
    "h": 278
  },
  "luminance": 0.04806
}

Semantic roles & 50–950 ramp

primary

#371AB3

secondary

#B7CC5D

accent

#F137CE

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #371AB3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →