#31345B#31345B

#31345B is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.2% C 0.068 H 278.8°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#31345B
RGB	rgb(49, 52, 91)
HSL	hsl(236, 30%, 27%)
HSV	hsv(236, 46%, 36%)
CMYK	cmyk(46.2%, 42.9%, 0%, 64.3%)
CIE-LAB	lab(23.22, 10.25, -23.84)
CIE-LCH	lch(23.22, 25.95, 293.27°)
OKLab	oklab(34.2% 0.0104 -0.0672)
OKLCH	oklch(34.2% 0.068 278.8)
XYZ	xyz(4.3824, 3.8641, 10.4104)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31345B #5B5831

analogous

#31495B #31345B #43315B

triadic

#31345B #5B3134 #345B31

tetradic

#31345B #5B3149 #5B5831 #315B43

square

#31345B #5B3149 #5B5831 #315B43

split-complementary

#31345B #5B4331 #495B31

monochromatic

#0B0B14 #1C1D33 #31345B #464B83 #5E63A8

Accessibility & contrast

On white

11.85

#31345B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#31345B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31345B

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31345B	#FFFFFF	#000000	##FFFFFF
##31345B	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26395D

Deuteranopia (green-blind)

#23365A

Tritanopia (blue-blind)

#243C43

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #31345b;
/* rgb */ color: rgb(49, 52, 91);
/* oklch */ color: oklch(34.2% 0.068 278.8);

Tailwind

colors: {
  custom: {
    50: '#6b6b89',
    500: '#31345b',
    950: '#000000',
  },
}

SCSS

$custom: #31345b;
$custom-light: #6b6b89;
$custom-dark: #000000;

JSON

{
  "hex": "#31345b",
  "rgb": {
    "r": 49,
    "g": 52,
    "b": 91
  },
  "hsl": {
    "h": 235.714,
    "s": 30,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34196,
    "c": 0.06798,
    "h": 278.8
  },
  "luminance": 0.03864
}

Semantic roles & 50–950 ramp

primary

#31345B

secondary

#8C895C

accent

#BF62C6

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#07060B

muted

#7A7A7C

Preview Lab

Preview with #31345B

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

Preview Lab → · Contrast checker → · Palette generator →