#31395B#31395B

#31395B is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.4% C 0.060 H 272.9°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#31395B
RGB	rgb(49, 57, 91)
HSL	hsl(229, 30%, 27%)
HSV	hsv(229, 46%, 36%)
CMYK	cmyk(46.2%, 37.4%, 0%, 64.3%)
CIE-LAB	lab(24.75, 6.81, -21.43)
CIE-LCH	lch(24.75, 22.48, 287.63°)
OKLab	oklab(35.37% 0.0031 -0.0602)
OKLCH	oklch(35.37% 0.06 272.9)
XYZ	xyz(4.6175, 4.3343, 10.4888)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31395B #5B5331

analogous

#314E5B #31395B #3E315B

triadic

#31395B #5B3139 #395B31

tetradic

#31395B #5B314E #5B5331 #315B3E

square

#31395B #5B314E #5B5331 #315B3E

split-complementary

#31395B #5B3E31 #4E5B31

monochromatic

#0B0C14 #1C2033 #31395B #465283 #5E6CA8

Accessibility & contrast

On white

11.25

#31395B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#31395B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31395B

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31395B	#FFFFFF	#000000	##FFFFFF
##31395B	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3D5C

Deuteranopia (green-blind)

#29395A

Tritanopia (blue-blind)

#234045

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #31395b;
/* rgb */ color: rgb(49, 57, 91);
/* oklch */ color: oklch(35.4% 0.060 272.9);

Tailwind

colors: {
  custom: {
    50: '#6b6f89',
    500: '#31395b',
    950: '#000000',
  },
}

SCSS

$custom: #31395b;
$custom-light: #6b6f89;
$custom-dark: #000000;

JSON

{
  "hex": "#31395b",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 91
  },
  "hsl": {
    "h": 228.571,
    "s": 30,
    "l": 27.451
  },
  "oklch": {
    "l": 0.35373,
    "c": 0.06024,
    "h": 272.9
  },
  "luminance": 0.04335
}

Semantic roles & 50–950 ramp

primary

#31395B

secondary

#8C835C

accent

#B362C6

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#07070B

muted

#7A7A7C

Preview Lab

Preview with #31395B

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

Preview Lab → · Contrast checker → · Palette generator →