#313481#313481

#313481 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.127 H 276.5°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#313481
RGB	rgb(49, 52, 129)
HSL	hsl(238, 45%, 35%)
HSV	hsv(238, 62%, 51%)
CMYK	cmyk(62%, 59.7%, 0%, 49.4%)
CIE-LAB	lab(25.84, 23.65, -44.01)
CIE-LCH	lch(25.84, 49.96, 298.25°)
OKLab	oklab(37.02% 0.0145 -0.1264)
OKLCH	oklch(37.02% 0.127 276.5)
XYZ	xyz(6.4558, 4.6934, 21.3303)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313481 #817E31

analogous

#315C81 #313481 #563181

triadic

#313481 #813134 #348131

tetradic

#313481 #81315C #817E31 #318156

square

#313481 #81315C #817E31 #318156

split-complementary

#313481 #815631 #5C8131

monochromatic

#0F1028 #202255 #313481 #4246AD #676BC5

Accessibility & contrast

On white

10.83

#313481 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#313481 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313481

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313481	#FFFFFF	#000000	##FFFFFF
##313481	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004184

Deuteranopia (green-blind)

#003A7F

Tritanopia (blue-blind)

#004655

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #313481;
/* rgb */ color: rgb(49, 52, 129);
/* oklch */ color: oklch(37.0% 0.127 276.5);

Tailwind

colors: {
  custom: {
    50: '#726ba6',
    500: '#313481',
    950: '#000000',
  },
}

SCSS

$custom: #313481;
$custom-light: #726ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#313481",
  "rgb": {
    "r": 49,
    "g": 52,
    "b": 129
  },
  "hsl": {
    "h": 237.75,
    "s": 44.944,
    "l": 34.902
  },
  "oklch": {
    "l": 0.37017,
    "c": 0.12724,
    "h": 276.5
  },
  "luminance": 0.04694
}

Semantic roles & 50–950 ramp

primary

#313481

secondary

#ADAA61

accent

#D053D5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #313481

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

Preview Lab → · Contrast checker → · Palette generator →