#312F85#312F85

#312F85 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.140 H 277.9°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#312F85
RGB	rgb(49, 47, 133)
HSL	hsl(241, 48%, 35%)
HSV	hsv(241, 65%, 52%)
CMYK	cmyk(63.2%, 64.7%, 0%, 47.8%)
CIE-LAB	lab(24.89, 28.39, -48.08)
CIE-LCH	lch(24.89, 55.83, 300.57°)
OKLab	oklab(36.42% 0.0193 -0.1384)
OKLCH	oklch(36.42% 0.14 277.9)
XYZ	xyz(6.5154, 4.3790, 22.6876)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312F85 #83852F

analogous

#2F5885 #312F85 #5C2F85

triadic

#312F85 #85312F #2F8531

tetradic

#312F85 #852F58 #83852F #2F855C

square

#312F85 #852F58 #83852F #2F855C

split-complementary

#312F85 #855C2F #58852F

monochromatic

#100F2B #201F58 #312F85 #423FB2 #6866C9

Accessibility & contrast

On white

11.20

#312F85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#312F85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312F85

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312F85	#FFFFFF	#000000	##FFFFFF
##312F85	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)

#003F88

Deuteranopia (green-blind)

#003783

Tritanopia (blue-blind)

#004555

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #312f85;
/* rgb */ color: rgb(49, 47, 133);
/* oklch */ color: oklch(36.4% 0.140 277.9);

Tailwind

colors: {
  custom: {
    50: '#7368a9',
    500: '#312f85',
    950: '#000000',
  },
}

SCSS

$custom: #312f85;
$custom-light: #7368a9;
$custom-dark: #000000;

JSON

{
  "hex": "#312f85",
  "rgb": {
    "r": 49,
    "g": 47,
    "b": 133
  },
  "hsl": {
    "h": 241.395,
    "s": 47.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.36415,
    "c": 0.13972,
    "h": 277.9
  },
  "luminance": 0.04379
}

Semantic roles & 50–950 ramp

primary

#312F85

secondary

#AEB060

accent

#D750D4

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #312F85

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

Preview Lab → · Contrast checker → · Palette generator →