#312497#312497

#312497 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.4% C 0.176 H 278.1°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#312497
RGB	rgb(49, 36, 151)
HSL	hsl(247, 61%, 37%)
HSV	hsv(247, 76%, 59%)
CMYK	cmyk(67.5%, 76.2%, 0%, 40.8%)
CIE-LAB	lab(24.16, 41.20, -60.44)
CIE-LCH	lch(24.16, 73.14, 304.28°)
OKLab	oklab(36.41% 0.0249 -0.1746)
OKLCH	oklch(36.41% 0.176 278.1)
XYZ	xyz(7.4816, 4.1485, 29.6786)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312497 #8A9724

analogous

#245197 #312497 #6B2497

triadic

#312497 #973124 #249731

tetradic

#312497 #972451 #8A9724 #24976B

square

#312497 #972451 #8A9724 #24976B

split-complementary

#312497 #976B24 #519724

monochromatic

#110C34 #211866 #312497 #4130C8 #6B5DD8

Accessibility & contrast

On white

11.48

#312497 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#312497 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312497

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312497	#FFFFFF	#000000	##FFFFFF
##312497	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9A

Deuteranopia (green-blind)

#003595

Tritanopia (blue-blind)

#00455C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #312497;
/* rgb */ color: rgb(49, 36, 151);
/* oklch */ color: oklch(36.4% 0.176 278.1);

Tailwind

colors: {
  custom: {
    50: '#7861b7',
    500: '#312497',
    950: '#000000',
  },
}

SCSS

$custom: #312497;
$custom-light: #7861b7;
$custom-dark: #000000;

JSON

{
  "hex": "#312497",
  "rgb": {
    "r": 49,
    "g": 36,
    "b": 151
  },
  "hsl": {
    "h": 246.783,
    "s": 61.497,
    "l": 36.667
  },
  "oklch": {
    "l": 0.36414,
    "c": 0.17633,
    "h": 278.1
  },
  "luminance": 0.04149
}

Semantic roles & 50–950 ramp

primary

#312497

secondary

#B2BD5A

accent

#E543D2

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #312497

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

Preview Lab → · Contrast checker → · Palette generator →