#371AB4#371AB4

#371AB4 is a dark, highly saturated violet. Relative luminance 0.048; OKLCH L 39.0% C 0.217 H 277.9°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#371AB4
RGB	rgb(55, 26, 180)
HSL	hsl(251, 75%, 40%)
HSV	hsv(251, 86%, 71%)
CMYK	cmyk(69.4%, 85.6%, 0%, 29.4%)
CIE-LAB	lab(26.29, 55.17, -74.47)
CIE-LCH	lch(26.29, 92.68, 306.53°)
OKLab	oklab(38.97% 0.0297 -0.2151)
OKLCH	oklch(38.97% 0.217 277.9)
XYZ	xyz(10.1805, 4.8454, 43.5699)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371AB4 #97B41A

analogous

#1A4AB4 #371AB4 #841AB4

triadic

#371AB4 #B4371A #1AB437

tetradic

#371AB4 #B41A4A #97B41A #1AB484

square

#371AB4 #B41A4A #97B41A #1AB484

split-complementary

#371AB4 #B4841A #4AB41A

monochromatic

#160B49 #27127F #371AB4 #4D2BE0 #7A60E8

Accessibility & contrast

On white

10.66

#371AB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#371AB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371AB4

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371AB4	#FFFFFF	#000000	##FFFFFF
##371AB4	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B8

Deuteranopia (green-blind)

#0038B1

Tritanopia (blue-blind)

#004D6B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #371ab4;
/* rgb */ color: rgb(55, 26, 180);
/* oklch */ color: oklch(39.0% 0.217 277.9);

Tailwind

colors: {
  custom: {
    50: '#815ecc',
    500: '#371ab4',
    950: '#000000',
  },
}

SCSS

$custom: #371ab4;
$custom-light: #815ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#371ab4",
  "rgb": {
    "r": 55,
    "g": 26,
    "b": 180
  },
  "hsl": {
    "h": 251.299,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.38971,
    "c": 0.21711,
    "h": 277.9
  },
  "luminance": 0.04846
}

Semantic roles & 50–950 ramp

primary

#371AB4

secondary

#B8CC5D

accent

#F136CE

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #371AB4

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

Preview Lab → · Contrast checker → · Palette generator →