#312183#312183

#312183 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.9% C 0.154 H 281.8°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#312183
RGB	rgb(49, 33, 131)
HSL	hsl(250, 60%, 32%)
HSV	hsv(250, 75%, 51%)
CMYK	cmyk(62.6%, 74.8%, 0%, 48.6%)
CIE-LAB	lab(21.50, 36.39, -52.36)
CIE-LCH	lch(21.50, 63.77, 304.80°)
OKLab	oklab(33.92% 0.0316 -0.1509)
OKLCH	oklch(33.92% 0.154 281.8)
XYZ	xyz(5.9059, 3.3790, 21.8093)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312183 #738321

analogous

#214283 #312183 #622183

triadic

#312183 #833121 #218331

tetradic

#312183 #832142 #738321 #218362

square

#312183 #832142 #738321 #218362

split-complementary

#312183 #836221 #428321

monochromatic

#0C0821 #1F1552 #312183 #432DB4 #624CD2

Accessibility & contrast

On white

12.53

#312183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#312183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312183

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312183	#FFFFFF	#000000	##FFFFFF
##312183	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003786

Deuteranopia (green-blind)

#003081

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #312183;
/* rgb */ color: rgb(49, 33, 131);
/* oklch */ color: oklch(33.9% 0.154 281.8);

Tailwind

colors: {
  custom: {
    50: '#745ea8',
    500: '#312183',
    950: '#000000',
  },
}

SCSS

$custom: #312183;
$custom-light: #745ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#312183",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 131
  },
  "hsl": {
    "h": 249.796,
    "s": 59.756,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33917,
    "c": 0.15421,
    "h": 281.8
  },
  "luminance": 0.03379
}

Semantic roles & 50–950 ramp

primary

#312183

secondary

#A4B54B

accent

#E345C9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #312183

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

Preview Lab → · Contrast checker → · Palette generator →