#312381#312381

#312381 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.0% C 0.149 H 281.7°. Best body text is #FFFFFF at 12.44:1 contrast (WCAG AA passes).

Color values

HEX	#312381
RGB	rgb(49, 35, 129)
HSL	hsl(249, 57%, 32%)
HSV	hsv(249, 73%, 51%)
CMYK	cmyk(62%, 72.9%, 0%, 49.4%)
CIE-LAB	lab(21.72, 34.57, -50.73)
CIE-LCH	lch(21.72, 61.39, 304.27°)
OKLab	oklab(34.02% 0.0304 -0.1462)
OKLCH	oklch(34.02% 0.149 281.7)
XYZ	xyz(5.8289, 3.4396, 21.1214)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312381 #738123

analogous

#234481 #312381 #602381

triadic

#312381 #813123 #238131

tetradic

#312381 #812344 #738123 #238160

square

#312381 #812344 #738123 #238160

split-complementary

#312381 #816023 #448123

monochromatic

#0C0921 #1F1651 #312381 #4330B1 #624FCF

Accessibility & contrast

On white

12.44

#312381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#312381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312381

12.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312381	#FFFFFF	#000000	##FFFFFF
##312381	1.00	12.44	1.69	12.44
#FFFFFF	12.44	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003784

Deuteranopia (green-blind)

#00317F

Tritanopia (blue-blind)

#003C4F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #312381;
/* rgb */ color: rgb(49, 35, 129);
/* oklch */ color: oklch(34.0% 0.149 281.7);

Tailwind

colors: {
  custom: {
    50: '#735fa6',
    500: '#312381',
    950: '#000000',
  },
}

SCSS

$custom: #312381;
$custom-light: #735fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#312381",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 129
  },
  "hsl": {
    "h": 248.936,
    "s": 57.317,
    "l": 32.157
  },
  "oklch": {
    "l": 0.34016,
    "c": 0.14932,
    "h": 281.7
  },
  "luminance": 0.0344
}

Semantic roles & 50–950 ramp

primary

#312381

secondary

#A4B34D

accent

#E147CA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09050F

muted

#7B797F

Preview Lab

Preview with #312381

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

Preview Lab → · Contrast checker → · Palette generator →