#31559D#31559D

#31559D is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.2% C 0.124 H 262.6°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#31559D
RGB	rgb(49, 85, 157)
HSL	hsl(220, 52%, 40%)
HSV	hsv(220, 69%, 62%)
CMYK	cmyk(68.8%, 45.9%, 0%, 38.4%)
CIE-LAB	lab(37.08, 11.85, -43.07)
CIE-LCH	lch(37.08, 44.67, 285.39°)
OKLab	oklab(46.15% -0.0161 -0.1232)
OKLCH	oklch(46.15% 0.124 262.6)
XYZ	xyz(10.5988, 9.5832, 33.1829)
Luminance	0.0958 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31559D #9D7931

analogous

#318B9D #31559D #43319D

triadic

#31559D #9D3155 #559D31

tetradic

#31559D #9D318B #9D7931 #319D43

square

#31559D #9D318B #9D7931 #319D43

split-complementary

#31559D #9D4331 #8B9D31

monochromatic

#142240 #223C6E #31559D #4670C5 #7594D4

Accessibility & contrast

On white

7.20

#31559D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#31559D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31559D

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31559D	#FFFFFF	#000000	##FFFFFF
##31559D	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315DA0

Deuteranopia (green-blind)

#1D539C

Tritanopia (blue-blind)

#006671

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #31559d;
/* rgb */ color: rgb(49, 85, 157);
/* oklch */ color: oklch(46.2% 0.124 262.6);

Tailwind

colors: {
  custom: {
    50: '#7684ba',
    500: '#31559d',
    950: '#000000',
  },
}

SCSS

$custom: #31559d;
$custom-light: #7684ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31559d",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 157
  },
  "hsl": {
    "h": 220,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.46154,
    "c": 0.12422,
    "h": 262.6
  },
  "luminance": 0.09584
}

Semantic roles & 50–950 ramp

primary

#31559D

secondary

#BCA26E

accent

#AC4CDC

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #31559D

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

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