#31239D#31239D

#31239D is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.9% C 0.185 H 277.5°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#31239D
RGB	rgb(49, 35, 157)
HSL	hsl(247, 64%, 38%)
HSV	hsv(247, 78%, 62%)
CMYK	cmyk(68.8%, 77.7%, 0%, 38.4%)
CIE-LAB	lab(24.60, 43.66, -63.38)
CIE-LCH	lch(24.60, 76.96, 304.56°)
OKLab	oklab(36.92% 0.024 -0.1831)
OKLCH	oklch(36.92% 0.185 277.5)
XYZ	xyz(7.9515, 4.2887, 32.3005)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31239D #8F9D23

analogous

#23529D #31239D #6E239D

triadic

#31239D #9D3123 #239D31

tetradic

#31239D #9D2352 #8F9D23 #239D6E

square

#31239D #9D2352 #8F9D23 #239D6E

split-complementary

#31239D #9D6E23 #529D23

monochromatic

#120D39 #21186B #31239D #412ECF #6D5FDB

Accessibility & contrast

On white

11.30

#31239D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#31239D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31239D

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31239D	#FFFFFF	#000000	##FFFFFF
##31239D	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA0

Deuteranopia (green-blind)

#00359B

Tritanopia (blue-blind)

#00475F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #31239d;
/* rgb */ color: rgb(49, 35, 157);
/* oklch */ color: oklch(36.9% 0.185 277.5);

Tailwind

colors: {
  custom: {
    50: '#7961bb',
    500: '#31239d',
    950: '#000000',
  },
}

SCSS

$custom: #31239d;
$custom-light: #7961bb;
$custom-dark: #000000;

JSON

{
  "hex": "#31239d",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 157
  },
  "hsl": {
    "h": 246.885,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.36919,
    "c": 0.1847,
    "h": 277.5
  },
  "luminance": 0.04289
}

Semantic roles & 50–950 ramp

primary

#31239D

secondary

#B5C05C

accent

#E741D4

background

#F8F5FB

surface

#EFEAF6

border

#CAC6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #31239D

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

Preview Lab → · Contrast checker → · Palette generator →