#131D3F#131D3F

#131D3F is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.3% C 0.066 H 268.8°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#131D3F
RGB	rgb(19, 29, 63)
HSL	hsl(226, 54%, 16%)
HSV	hsv(226, 70%, 25%)
CMYK	cmyk(69.8%, 54%, 0%, 75.3%)
CIE-LAB	lab(11.80, 8.46, -23.13)
CIE-LCH	lch(11.80, 24.63, 290.09°)
OKLab	oklab(24.27% -0.0014 -0.0661)
OKLCH	oklch(24.27% 0.066 268.8)
XYZ	xyz(1.6048, 1.3759, 4.8827)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D3F #3F3513

analogous

#13333F #131D3F #1F133F

triadic

#131D3F #3F131D #1D3F13

tetradic

#131D3F #3F1333 #3F3513 #133F1F

square

#131D3F #3F1333 #3F3513 #133F1F

split-complementary

#131D3F #3F1F13 #333F13

monochromatic

#070B18 #070B18 #131D3F #21336E #2F489D

Accessibility & contrast

On white

16.47

#131D3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#131D3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D3F

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D3F	#FFFFFF	#000000	##FFFFFF
##131D3F	1.00	16.47	1.28	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C2140

Deuteranopia (green-blind)

#051D3E

Tritanopia (blue-blind)

#00252A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #131d3f;
/* rgb */ color: rgb(19, 29, 63);
/* oklch */ color: oklch(24.3% 0.066 268.8);

Tailwind

colors: {
  custom: {
    50: '#565874',
    500: '#131d3f',
    950: '#000000',
  },
}

SCSS

$custom: #131d3f;
$custom-light: #565874;
$custom-dark: #000000;

JSON

{
  "hex": "#131d3f",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 63
  },
  "hsl": {
    "h": 226.364,
    "s": 53.659,
    "l": 16.078
  },
  "oklch": {
    "l": 0.2427,
    "c": 0.06612,
    "h": 268.8
  },
  "luminance": 0.01376
}

Semantic roles & 50–950 ramp

primary

#131D3F

secondary

#786936

accent

#BC4BDD

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #131D3F

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

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