#331F98#331F98

#331F98 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.0% C 0.182 H 279.6°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#331F98
RGB	rgb(51, 31, 152)
HSL	hsl(250, 66%, 36%)
HSV	hsv(250, 80%, 60%)
CMYK	cmyk(66.4%, 79.6%, 0%, 40.4%)
CIE-LAB	lab(23.51, 44.37, -62.12)
CIE-LCH	lch(23.51, 76.34, 305.54°)
OKLab	oklab(36.03% 0.0304 -0.1794)
OKLCH	oklch(36.03% 0.182 279.6)
XYZ	xyz(7.5209, 3.9502, 30.0658)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331F98 #84981F

analogous

#1F4898 #331F98 #6F1F98

triadic

#331F98 #98331F #1F9833

tetradic

#331F98 #981F48 #84981F #1F986F

square

#331F98 #981F48 #84981F #1F986F

split-complementary

#331F98 #986F1F #48981F

monochromatic

#110A32 #221565 #331F98 #4429CB #6B55DC

Accessibility & contrast

On white

11.73

#331F98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#331F98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331F98

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331F98	#FFFFFF	#000000	##FFFFFF
##331F98	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9B

Deuteranopia (green-blind)

#003396

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #331f98;
/* rgb */ color: rgb(51, 31, 152);
/* oklch */ color: oklch(36.0% 0.182 279.6);

Tailwind

colors: {
  custom: {
    50: '#795eb8',
    500: '#331f98',
    950: '#000000',
  },
}

SCSS

$custom: #331f98;
$custom-light: #795eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#331f98",
  "rgb": {
    "r": 51,
    "g": 31,
    "b": 152
  },
  "hsl": {
    "h": 249.917,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36032,
    "c": 0.18193,
    "h": 279.6
  },
  "luminance": 0.03951
}

Semantic roles & 50–950 ramp

primary

#331F98

secondary

#AEC053

accent

#E93FCD

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #331F98

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

Preview Lab → · Contrast checker → · Palette generator →