#312B83#312B83

#312B83 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.5% C 0.142 H 279.4°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#312B83
RGB	rgb(49, 43, 131)
HSL	hsl(244, 51%, 34%)
HSV	hsv(244, 67%, 51%)
CMYK	cmyk(62.6%, 67.2%, 0%, 48.6%)
CIE-LAB	lab(23.73, 30.29, -48.70)
CIE-LCH	lch(23.73, 57.35, 301.88°)
OKLab	oklab(35.52% 0.0231 -0.1403)
OKLCH	oklch(35.52% 0.142 279.4)
XYZ	xyz(6.2259, 4.0190, 21.9160)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312B83 #7D832B

analogous

#2B5183 #312B83 #5D2B83

triadic

#312B83 #83312B #2B8331

tetradic

#312B83 #832B51 #7D832B #2B835D

square

#312B83 #832B51 #7D832B #2B835D

split-complementary

#312B83 #835D2B #51832B

monochromatic

#0F0D27 #201C55 #312B83 #423AB1 #665ECA

Accessibility & contrast

On white

11.64

#312B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#312B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312B83

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312B83	#FFFFFF	#000000	##FFFFFF
##312B83	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C86

Deuteranopia (green-blind)

#003581

Tritanopia (blue-blind)

#004153

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #312b83;
/* rgb */ color: rgb(49, 43, 131);
/* oklch */ color: oklch(35.5% 0.142 279.4);

Tailwind

colors: {
  custom: {
    50: '#7365a8',
    500: '#312b83',
    950: '#000000',
  },
}

SCSS

$custom: #312b83;
$custom-light: #7365a8;
$custom-dark: #000000;

JSON

{
  "hex": "#312b83",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 131
  },
  "hsl": {
    "h": 244.091,
    "s": 50.575,
    "l": 34.118
  },
  "oklch": {
    "l": 0.3552,
    "c": 0.14214,
    "h": 279.4
  },
  "luminance": 0.04019
}

Semantic roles & 50–950 ramp

primary

#312B83

secondary

#AAB05A

accent

#DA4ED1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090510

muted

#7B7A7F

Preview Lab

Preview with #312B83

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

Preview Lab → · Contrast checker → · Palette generator →