#31229F#31229F

#31229F is a dark, vivid blue. Relative luminance 0.043; OKLCH L 37.0% C 0.188 H 277.3°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#31229F
RGB	rgb(49, 34, 159)
HSL	hsl(247, 65%, 38%)
HSV	hsv(247, 79%, 62%)
CMYK	cmyk(69.2%, 78.6%, 0%, 37.6%)
CIE-LAB	lab(24.64, 44.82, -64.55)
CIE-LCH	lch(24.64, 78.58, 304.78°)
OKLab	oklab(37.01% 0.024 -0.1865)
OKLCH	oklch(37.01% 0.188 277.3)
XYZ	xyz(8.0946, 4.2995, 33.1975)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31229F #909F22

analogous

#22519F #31229F #6F229F

triadic

#31229F #9F3122 #229F31

tetradic

#31229F #9F2251 #909F22 #229F6F

square

#31229F #9F2251 #909F22 #229F6F

split-complementary

#31229F #9F6F22 #519F22

monochromatic

#120C3A #21176D #31229F #412DD1 #6E5FDD

Accessibility & contrast

On white

11.29

#31229F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#31229F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31229F

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31229F	#FFFFFF	#000000	##FFFFFF
##31229F	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040A3

Deuteranopia (green-blind)

#00359D

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #31229f;
/* rgb */ color: rgb(49, 34, 159);
/* oklch */ color: oklch(37.0% 0.188 277.3);

Tailwind

colors: {
  custom: {
    50: '#7a60bd',
    500: '#31229f',
    950: '#000000',
  },
}

SCSS

$custom: #31229f;
$custom-light: #7a60bd;
$custom-dark: #000000;

JSON

{
  "hex": "#31229f",
  "rgb": {
    "r": 49,
    "g": 34,
    "b": 159
  },
  "hsl": {
    "h": 247.2,
    "s": 64.767,
    "l": 37.843
  },
  "oklch": {
    "l": 0.37007,
    "c": 0.18805,
    "h": 277.3
  },
  "luminance": 0.043
}

Semantic roles & 50–950 ramp

primary

#31229F

secondary

#B5C15B

accent

#E840D4

background

#F8F5FB

surface

#EFEAF7

border

#CAC6D0

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #31229F

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

Preview Lab → · Contrast checker → · Palette generator →