#31369D#31369D

#31369D is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.9% C 0.164 H 274.0°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#31369D
RGB	rgb(49, 54, 157)
HSL	hsl(237, 52%, 40%)
HSV	hsv(237, 69%, 62%)
CMYK	cmyk(68.8%, 65.6%, 0%, 38.4%)
CIE-LAB	lab(28.71, 32.37, -56.63)
CIE-LCH	lch(28.71, 65.23, 299.75°)
OKLab	oklab(39.86% 0.0115 -0.1635)
OKLCH	oklch(39.86% 0.164 274)
XYZ	xyz(8.6696, 5.7248, 32.5399)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31369D #9D9831

analogous

#316C9D #31369D #62319D

triadic

#31369D #9D3136 #369D31

tetradic

#31369D #9D316C #9D9831 #319D62

square

#31369D #9D316C #9D9831 #319D62

split-complementary

#31369D #9D6231 #6C9D31

monochromatic

#141640 #22266E #31369D #464CC5 #7579D4

Accessibility & contrast

On white

9.79

#31369D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#31369D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31369D

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31369D	#FFFFFF	#000000	##FFFFFF
##31369D	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A0

Deuteranopia (green-blind)

#003F9B

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #31369d;
/* rgb */ color: rgb(49, 54, 157);
/* oklch */ color: oklch(39.9% 0.164 274.0);

Tailwind

colors: {
  custom: {
    50: '#786dbb',
    500: '#31369d',
    950: '#000000',
  },
}

SCSS

$custom: #31369d;
$custom-light: #786dbb;
$custom-dark: #000000;

JSON

{
  "hex": "#31369d",
  "rgb": {
    "r": 49,
    "g": 54,
    "b": 157
  },
  "hsl": {
    "h": 237.222,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.3986,
    "c": 0.16387,
    "h": 274
  },
  "luminance": 0.05726
}

Semantic roles & 50–950 ramp

primary

#31369D

secondary

#BCB86E

accent

#D54CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #31369D

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

Preview Lab → · Contrast checker → · Palette generator →