#312191#312191

#312191 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.4% C 0.172 H 279.4°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#312191
RGB	rgb(49, 33, 145)
HSL	hsl(249, 63%, 35%)
HSV	hsv(249, 77%, 57%)
CMYK	cmyk(66.2%, 77.2%, 0%, 43.1%)
CIE-LAB	lab(22.95, 40.91, -58.73)
CIE-LCH	lch(22.95, 71.58, 304.86°)
OKLab	oklab(35.37% 0.0282 -0.1696)
OKLCH	oklch(35.37% 0.172 279.4)
XYZ	xyz(6.9197, 3.7845, 27.1484)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312191 #819121

analogous

#214991 #312191 #692191

triadic

#312191 #913121 #219131

tetradic

#312191 #912149 #819121 #219169

square

#312191 #912149 #819121 #219169

split-complementary

#312191 #916921 #499121

monochromatic

#0F0A2D #20165F #312191 #422CC3 #6754D8

Accessibility & contrast

On white

11.95

#312191 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#312191 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312191

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312191	#FFFFFF	#000000	##FFFFFF
##312191	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B94

Deuteranopia (green-blind)

#00328F

Tritanopia (blue-blind)

#004158

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #312191;
/* rgb */ color: rgb(49, 33, 145);
/* oklch */ color: oklch(35.4% 0.172 279.4);

Tailwind

colors: {
  custom: {
    50: '#775fb2',
    500: '#312191',
    950: '#000000',
  },
}

SCSS

$custom: #312191;
$custom-light: #775fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#312191",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 145
  },
  "hsl": {
    "h": 248.571,
    "s": 62.921,
    "l": 34.902
  },
  "oklch": {
    "l": 0.35372,
    "c": 0.17189,
    "h": 279.4
  },
  "luminance": 0.03785
}

Semantic roles & 50–950 ramp

primary

#312191

secondary

#ADBC52

accent

#E642CF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #312191

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

Preview Lab → · Contrast checker → · Palette generator →