#312997#312997

#312997 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.1% C 0.171 H 277.3°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#312997
RGB	rgb(49, 41, 151)
HSL	hsl(244, 57%, 38%)
HSV	hsv(244, 73%, 59%)
CMYK	cmyk(67.5%, 72.8%, 0%, 40.8%)
CIE-LAB	lab(25.18, 38.34, -58.76)
CIE-LCH	lch(25.18, 70.16, 303.12°)
OKLab	oklab(37.14% 0.0217 -0.1697)
OKLCH	oklch(37.14% 0.171 277.3)
XYZ	xyz(7.6437, 4.4726, 29.7326)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312997 #8F9729

analogous

#295897 #312997 #682997

triadic

#312997 #973129 #299731

tetradic

#312997 #972958 #8F9729 #299768

square

#312997 #972958 #8F9729 #299768

split-complementary

#312997 #976829 #589729

monochromatic

#120F37 #211C67 #312997 #4136C7 #6D65D5

Accessibility & contrast

On white

11.08

#312997 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#312997 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312997

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312997	#FFFFFF	#000000	##FFFFFF
##312997	1.00	11.08	1.89	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00409A

Deuteranopia (green-blind)

#003795

Tritanopia (blue-blind)

#00485D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #312997;
/* rgb */ color: rgb(49, 41, 151);
/* oklch */ color: oklch(37.1% 0.171 277.3);

Tailwind

colors: {
  custom: {
    50: '#7764b7',
    500: '#312997',
    950: '#000000',
  },
}

SCSS

$custom: #312997;
$custom-light: #7764b7;
$custom-dark: #000000;

JSON

{
  "hex": "#312997",
  "rgb": {
    "r": 49,
    "g": 41,
    "b": 151
  },
  "hsl": {
    "h": 244.364,
    "s": 57.292,
    "l": 37.647
  },
  "oklch": {
    "l": 0.37137,
    "c": 0.17108,
    "h": 277.3
  },
  "luminance": 0.04473
}

Semantic roles & 50–950 ramp

primary

#312997

secondary

#B5BB61

accent

#E147D5

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0511

muted

#7C7A80

Preview Lab

Preview with #312997

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

Preview Lab → · Contrast checker → · Palette generator →