#312C87#312C87

#312C87 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.1% C 0.146 H 278.6°. Best body text is #FFFFFF at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#312C87
RGB	rgb(49, 44, 135)
HSL	hsl(243, 51%, 35%)
HSV	hsv(243, 67%, 53%)
CMYK	cmyk(63.7%, 67.4%, 0%, 47.1%)
CIE-LAB	lab(24.33, 31.03, -50.23)
CIE-LCH	lch(24.33, 59.05, 301.71°)
OKLab	oklab(36.07% 0.0218 -0.1447)
OKLCH	oklch(36.07% 0.146 278.6)
XYZ	xyz(6.5391, 4.2031, 23.3837)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312C87 #82872C

analogous

#2C5487 #312C87 #5F2C87

triadic

#312C87 #87312C #2C8731

tetradic

#312C87 #872C54 #82872C #2C875F

square

#312C87 #872C54 #82872C #2C875F

split-complementary

#312C87 #875F2C #54872C

monochromatic

#0F0E2B #201D59 #312C87 #423BB5 #6862CC

Accessibility & contrast

On white

11.41

#312C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#312C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312C87

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312C87	#FFFFFF	#000000	##FFFFFF
##312C87	1.00	11.41	1.84	11.41
#FFFFFF	11.41	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8A

Deuteranopia (green-blind)

#003685

Tritanopia (blue-blind)

#004355

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #312c87;
/* rgb */ color: rgb(49, 44, 135);
/* oklch */ color: oklch(36.1% 0.146 278.6);

Tailwind

colors: {
  custom: {
    50: '#7466ab',
    500: '#312c87',
    950: '#000000',
  },
}

SCSS

$custom: #312c87;
$custom-light: #7466ab;
$custom-dark: #000000;

JSON

{
  "hex": "#312c87",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 135
  },
  "hsl": {
    "h": 243.297,
    "s": 50.838,
    "l": 35.098
  },
  "oklch": {
    "l": 0.36066,
    "c": 0.14636,
    "h": 278.6
  },
  "luminance": 0.04204
}

Semantic roles & 50–950 ramp

primary

#312C87

secondary

#ADB25D

accent

#DA4DD3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #312C87

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

Preview Lab → · Contrast checker → · Palette generator →