#31335B#31335B

#31335B is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.0% C 0.070 H 279.8°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#31335B
RGB	rgb(49, 51, 91)
HSL	hsl(237, 30%, 27%)
HSV	hsv(237, 46%, 36%)
CMYK	cmyk(46.2%, 44%, 0%, 64.3%)
CIE-LAB	lab(22.92, 10.95, -24.31)
CIE-LCH	lch(22.92, 26.66, 294.24°)
OKLab	oklab(33.97% 0.0119 -0.0686)
OKLCH	oklch(33.97% 0.07 279.8)
XYZ	xyz(4.3382, 3.7758, 10.3957)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31335B #5B5931

analogous

#31485B #31335B #44315B

triadic

#31335B #5B3133 #335B31

tetradic

#31335B #5B3148 #5B5931 #315B44

square

#31335B #5B3148 #5B5931 #315B44

split-complementary

#31335B #5B4431 #485B31

monochromatic

#0B0B14 #1C1D33 #31335B #464983 #5E62A8

Accessibility & contrast

On white

11.96

#31335B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#31335B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31335B

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31335B	#FFFFFF	#000000	##FFFFFF
##31335B	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25385D

Deuteranopia (green-blind)

#22355A

Tritanopia (blue-blind)

#243B42

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #31335b;
/* rgb */ color: rgb(49, 51, 91);
/* oklch */ color: oklch(34.0% 0.070 279.8);

Tailwind

colors: {
  custom: {
    50: '#6b6a89',
    500: '#31335b',
    950: '#000000',
  },
}

SCSS

$custom: #31335b;
$custom-light: #6b6a89;
$custom-dark: #000000;

JSON

{
  "hex": "#31335b",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 91
  },
  "hsl": {
    "h": 237.143,
    "s": 30,
    "l": 27.451
  },
  "oklch": {
    "l": 0.33966,
    "c": 0.0696,
    "h": 279.8
  },
  "luminance": 0.03776
}

Semantic roles & 50–950 ramp

primary

#31335B

secondary

#8C8A5C

accent

#C162C6

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#07060B

muted

#7A7A7C

Preview Lab

Preview with #31335B

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

Preview Lab → · Contrast checker → · Palette generator →