#312C8D#312C8D

#312C8D is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.6% C 0.154 H 277.8°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#312C8D
RGB	rgb(49, 44, 141)
HSL	hsl(243, 52%, 36%)
HSV	hsv(243, 69%, 55%)
CMYK	cmyk(65.2%, 68.8%, 0%, 44.7%)
CIE-LAB	lab(24.88, 33.11, -53.07)
CIE-LCH	lch(24.88, 62.55, 301.96°)
OKLab	oklab(36.63% 0.0211 -0.1531)
OKLCH	oklch(36.63% 0.155 277.8)
XYZ	xyz(6.9735, 4.3769, 25.6715)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312C8D #888D2C

analogous

#2C588D #312C8D #622C8D

triadic

#312C8D #8D312C #2C8D31

tetradic

#312C8D #8D2C58 #888D2C #2C8D62

square

#312C8D #8D2C58 #888D2C #2C8D62

split-complementary

#312C8D #8D622C #588D2C

monochromatic

#110F30 #211D5E #312C8D #413BBC #6A65CF

Accessibility & contrast

On white

11.20

#312C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#312C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312C8D

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312C8D	#FFFFFF	#000000	##FFFFFF
##312C8D	1.00	11.20	1.88	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F90

Deuteranopia (green-blind)

#00378B

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #312c8d;
/* rgb */ color: rgb(49, 44, 141);
/* oklch */ color: oklch(36.6% 0.154 277.8);

Tailwind

colors: {
  custom: {
    50: '#7566af',
    500: '#312c8d',
    950: '#000000',
  },
}

SCSS

$custom: #312c8d;
$custom-light: #7566af;
$custom-dark: #000000;

JSON

{
  "hex": "#312c8d",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 141
  },
  "hsl": {
    "h": 243.093,
    "s": 52.432,
    "l": 36.275
  },
  "oklch": {
    "l": 0.36632,
    "c": 0.1545,
    "h": 277.8
  },
  "luminance": 0.04377
}

Semantic roles & 50–950 ramp

primary

#312C8D

secondary

#B1B560

accent

#DC4CD4

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #312C8D

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

Preview Lab → · Contrast checker → · Palette generator →