#31239F#31239F

#31239F is a dark, vivid blue. Relative luminance 0.044; OKLCH L 37.1% C 0.187 H 277.2°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#31239F
RGB	rgb(49, 35, 159)
HSL	hsl(247, 64%, 38%)
HSV	hsv(247, 78%, 62%)
CMYK	cmyk(69.2%, 78%, 0%, 37.6%)
CIE-LAB	lab(24.82, 44.30, -64.24)
CIE-LCH	lch(24.82, 78.04, 304.59°)
OKLab	oklab(37.14% 0.0235 -0.1856)
OKLCH	oklch(37.14% 0.187 277.2)
XYZ	xyz(8.1236, 4.3575, 33.2071)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31239F #919F23

analogous

#23539F #31239F #6F239F

triadic

#31239F #9F3123 #239F31

tetradic

#31239F #9F2353 #919F23 #239F6F

square

#31239F #9F2353 #919F23 #239F6F

split-complementary

#31239F #9F6F23 #539F23

monochromatic

#120D3B #22186D #31239F #412ED1 #6E60DC

Accessibility & contrast

On white

11.22

#31239F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#31239F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31239F

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31239F	#FFFFFF	#000000	##FFFFFF
##31239F	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A3

Deuteranopia (green-blind)

#00369D

Tritanopia (blue-blind)

#004860

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #31239f;
/* rgb */ color: rgb(49, 35, 159);
/* oklch */ color: oklch(37.1% 0.187 277.2);

Tailwind

colors: {
  custom: {
    50: '#7a61bd',
    500: '#31239f',
    950: '#000000',
  },
}

SCSS

$custom: #31239f;
$custom-light: #7a61bd;
$custom-dark: #000000;

JSON

{
  "hex": "#31239f",
  "rgb": {
    "r": 49,
    "g": 35,
    "b": 159
  },
  "hsl": {
    "h": 246.774,
    "s": 63.918,
    "l": 38.039
  },
  "oklch": {
    "l": 0.37135,
    "c": 0.18712,
    "h": 277.2
  },
  "luminance": 0.04358
}

Semantic roles & 50–950 ramp

primary

#31239F

secondary

#B6C15D

accent

#E741D4

background

#F8F5FB

surface

#EFEAF7

border

#CAC6D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #31239F

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

Preview Lab → · Contrast checker → · Palette generator →