#31209F#31209F

#31209F is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.8% C 0.190 H 277.6°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#31209F
RGB	rgb(49, 32, 159)
HSL	hsl(248, 66%, 37%)
HSV	hsv(248, 80%, 62%)
CMYK	cmyk(69.2%, 79.9%, 0%, 37.6%)
CIE-LAB	lab(24.29, 45.84, -65.13)
CIE-LCH	lch(24.29, 79.64, 305.14°)
OKLab	oklab(36.76% 0.025 -0.1882)
OKLCH	oklch(36.76% 0.19 277.6)
XYZ	xyz(8.0391, 4.1885, 33.1790)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31209F #8E9F20

analogous

#204F9F #31209F #70209F

triadic

#31209F #9F3120 #209F31

tetradic

#31209F #9F204F #8E9F20 #209F70

square

#31209F #9F204F #8E9F20 #209F70

split-complementary

#31209F #9F7020 #4F9F20

monochromatic

#120B39 #21166C #31209F #412AD2 #6D5BDE

Accessibility & contrast

On white

11.43

#31209F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#31209F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31209F

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31209F	#FFFFFF	#000000	##FFFFFF
##31209F	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA3

Deuteranopia (green-blind)

#00349D

Tritanopia (blue-blind)

#00475F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #31209f;
/* rgb */ color: rgb(49, 32, 159);
/* oklch */ color: oklch(36.8% 0.190 277.6);

Tailwind

colors: {
  custom: {
    50: '#7a5fbd',
    500: '#31209f',
    950: '#000000',
  },
}

SCSS

$custom: #31209f;
$custom-light: #7a5fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#31209f",
  "rgb": {
    "r": 49,
    "g": 32,
    "b": 159
  },
  "hsl": {
    "h": 248.031,
    "s": 66.492,
    "l": 37.451
  },
  "oklch": {
    "l": 0.36761,
    "c": 0.18984,
    "h": 277.6
  },
  "luminance": 0.04189
}

Semantic roles & 50–950 ramp

primary

#31209F

secondary

#B4C259

accent

#E93ED3

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #31209F

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

Preview Lab → · Contrast checker → · Palette generator →