#31359D#31359D

#31359D is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.7% C 0.165 H 274.3°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#31359D
RGB	rgb(49, 53, 157)
HSL	hsl(238, 52%, 40%)
HSV	hsv(238, 69%, 62%)
CMYK	cmyk(68.8%, 66.2%, 0%, 38.4%)
CIE-LAB	lab(28.47, 33.01, -57.03)
CIE-LCH	lch(28.47, 65.89, 300.06°)
OKLab	oklab(39.68% 0.0123 -0.1646)
OKLCH	oklch(39.68% 0.165 274.3)
XYZ	xyz(8.6235, 5.6327, 32.5245)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31359D #9D9931

analogous

#316B9D #31359D #63319D

triadic

#31359D #9D3135 #359D31

tetradic

#31359D #9D316B #9D9931 #319D63

square

#31359D #9D316B #9D9931 #319D63

split-complementary

#31359D #9D6331 #6B9D31

monochromatic

#141640 #22256E #31359D #464BC5 #7578D4

Accessibility & contrast

On white

9.87

#31359D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#31359D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31359D

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31359D	#FFFFFF	#000000	##FFFFFF
##31359D	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A0

Deuteranopia (green-blind)

#003E9B

Tritanopia (blue-blind)

#005064

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #31359d;
/* rgb */ color: rgb(49, 53, 157);
/* oklch */ color: oklch(39.7% 0.165 274.3);

Tailwind

colors: {
  custom: {
    50: '#786cbb',
    500: '#31359d',
    950: '#000000',
  },
}

SCSS

$custom: #31359d;
$custom-light: #786cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#31359d",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 157
  },
  "hsl": {
    "h": 237.778,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.39684,
    "c": 0.16508,
    "h": 274.3
  },
  "luminance": 0.05633
}

Semantic roles & 50–950 ramp

primary

#31359D

secondary

#BCB96E

accent

#D74CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #31359D

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

Preview Lab → · Contrast checker → · Palette generator →