#131F43#131F43

#131F43 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.070 H 267.4°. Best body text is #FFFFFF at 16.09:1 contrast (WCAG AA passes).

Color values

HEX	#131F43
RGB	rgb(19, 31, 67)
HSL	hsl(225, 56%, 17%)
HSV	hsv(225, 72%, 26%)
CMYK	cmyk(71.6%, 53.7%, 0%, 73.7%)
CIE-LAB	lab(12.76, 8.61, -24.40)
CIE-LCH	lch(12.76, 25.87, 289.44°)
OKLab	oklab(25.1% -0.0032 -0.0698)
OKLCH	oklch(25.1% 0.07 267.4)
XYZ	xyz(1.7713, 1.5235, 5.5098)
Luminance	0.0152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F43 #433713

analogous

#133743 #131F43 #1F1343

triadic

#131F43 #43131F #1F4313

tetradic

#131F43 #431337 #433713 #13431F

square

#131F43 #431337 #433713 #13431F

split-complementary

#131F43 #431F13 #374313

monochromatic

#070B18 #070B18 #131F43 #213573 #2E4BA2

Accessibility & contrast

On white

16.09

#131F43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#131F43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F43

16.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F43	#FFFFFF	#000000	##FFFFFF
##131F43	1.00	16.09	1.30	16.09
#FFFFFF	16.09	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D2344

Deuteranopia (green-blind)

#051F42

Tritanopia (blue-blind)

#00272D

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #131f43;
/* rgb */ color: rgb(19, 31, 67);
/* oklch */ color: oklch(25.1% 0.070 267.4);

Tailwind

colors: {
  custom: {
    50: '#575a77',
    500: '#131f43',
    950: '#000000',
  },
}

SCSS

$custom: #131f43;
$custom-light: #575a77;
$custom-dark: #000000;

JSON

{
  "hex": "#131f43",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 67
  },
  "hsl": {
    "h": 225,
    "s": 55.814,
    "l": 16.863
  },
  "oklch": {
    "l": 0.25099,
    "c": 0.06986,
    "h": 267.4
  },
  "luminance": 0.01524
}

Semantic roles & 50–950 ramp

primary

#131F43

secondary

#7C6A36

accent

#BA49DF

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #131F43

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

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