#312C8C#312C8C

#312C8C is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.5% C 0.153 H 277.9°. Best body text is #FFFFFF at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#312C8C
RGB	rgb(49, 44, 140)
HSL	hsl(243, 52%, 36%)
HSV	hsv(243, 69%, 55%)
CMYK	cmyk(65%, 68.6%, 0%, 45.1%)
CIE-LAB	lab(24.79, 32.77, -52.60)
CIE-LCH	lch(24.79, 61.97, 301.92°)
OKLab	oklab(36.54% 0.0212 -0.1517)
OKLCH	oklch(36.54% 0.153 277.9)
XYZ	xyz(6.8994, 4.3472, 25.2814)
Luminance	0.0435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312C8C #878C2C

analogous

#2C578C #312C8C #612C8C

triadic

#312C8C #8C312C #2C8C31

tetradic

#312C8C #8C2C57 #878C2C #2C8C61

square

#312C8C #8C2C57 #878C2C #2C8C61

split-complementary

#312C8C #8C612C #578C2C

monochromatic

#100F2F #211D5D #312C8C #413BBB #6A64CE

Accessibility & contrast

On white

11.23

#312C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#312C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312C8C

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312C8C	#FFFFFF	#000000	##FFFFFF
##312C8C	1.00	11.23	1.87	11.23
#FFFFFF	11.23	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8F

Deuteranopia (green-blind)

#00378A

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #312c8c;
/* rgb */ color: rgb(49, 44, 140);
/* oklch */ color: oklch(36.5% 0.153 277.9);

Tailwind

colors: {
  custom: {
    50: '#7566af',
    500: '#312c8c',
    950: '#000000',
  },
}

SCSS

$custom: #312c8c;
$custom-light: #7566af;
$custom-dark: #000000;

JSON

{
  "hex": "#312c8c",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 140
  },
  "hsl": {
    "h": 243.125,
    "s": 52.174,
    "l": 36.078
  },
  "oklch": {
    "l": 0.36537,
    "c": 0.15315,
    "h": 277.9
  },
  "luminance": 0.04348
}

Semantic roles & 50–950 ramp

primary

#312C8C

secondary

#B0B55F

accent

#DC4CD4

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #312C8C

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

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