#371DA8#371DA8

#371DA8 is a dark, highly saturated violet. Relative luminance 0.045; OKLCH L 37.9% C 0.202 H 279.3°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#371DA8
RGB	rgb(55, 29, 168)
HSL	hsl(251, 71%, 39%)
HSV	hsv(251, 83%, 66%)
CMYK	cmyk(67.3%, 82.7%, 0%, 34.1%)
CIE-LAB	lab(25.31, 50.50, -68.88)
CIE-LCH	lch(25.31, 85.41, 306.25°)
OKLab	oklab(37.9% 0.0325 -0.1989)
OKLCH	oklch(37.9% 0.202 279.3)
XYZ	xyz(9.0805, 4.5173, 37.4316)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#371DA8 #8EA81D

analogous

#1D48A8 #371DA8 #7C1DA8

triadic

#371DA8 #A8371D #1DA837

tetradic

#371DA8 #A81D48 #8EA81D #1DA87C

square

#371DA8 #A81D48 #8EA81D #1DA87C

split-complementary

#371DA8 #A87C1D #48A81D

monochromatic

#150B40 #261474 #371DA8 #4928DA #765CE3

Accessibility & contrast

On white

11.03

#371DA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#371DA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #371DA8

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##371DA8	#FFFFFF	#000000	##FFFFFF
##371DA8	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041AC

Deuteranopia (green-blind)

#0036A6

Tritanopia (blue-blind)

#004964

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #371da8;
/* rgb */ color: rgb(55, 29, 168);
/* oklch */ color: oklch(37.9% 0.202 279.3);

Tailwind

colors: {
  custom: {
    50: '#7f5fc3',
    500: '#371da8',
    950: '#000000',
  },
}

SCSS

$custom: #371da8;
$custom-light: #7f5fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#371da8",
  "rgb": {
    "r": 55,
    "g": 29,
    "b": 168
  },
  "hsl": {
    "h": 251.223,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.37896,
    "c": 0.20152,
    "h": 279.3
  },
  "luminance": 0.04518
}

Semantic roles & 50–950 ramp

primary

#371DA8

secondary

#B3C75A

accent

#ED3ACC

background

#F8F5FC

surface

#F0E9F8

border

#CBC5D1

text

#0C0513

muted

#7D7982

Preview Lab

Preview with #371DA8

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

Preview Lab → · Contrast checker → · Palette generator →