#0D183E#0D183E

#0D183E is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.5% C 0.074 H 267.8°. Best body text is #FFFFFF at 17.25:1 contrast (WCAG AA passes).

Color values

HEX	#0D183E
RGB	rgb(13, 24, 62)
HSL	hsl(227, 65%, 15%)
HSV	hsv(227, 79%, 24%)
CMYK	cmyk(79%, 61.3%, 0%, 75.7%)
CIE-LAB	lab(9.69, 10.70, -25.83)
CIE-LCH	lch(9.69, 27.96, 292.49°)
OKLab	oklab(22.54% -0.0028 -0.0743)
OKLCH	oklch(22.54% 0.074 267.8)
XYZ	xyz(1.3618, 1.0865, 4.6944)
Luminance	0.0109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0D183E #3E330D

analogous

#0D313E #0D183E #1B0D3E

triadic

#0D183E #3E0D18 #183E0D

tetradic

#0D183E #3E0D31 #3E330D #0D3E1B

square

#0D183E #3E0D31 #3E330D #0D3E1B

split-complementary

#0D183E #3E1B0D #313E0D

monochromatic

#050A19 #050A19 #0D183E #182C71 #223FA3

Accessibility & contrast

On white

17.25

#0D183E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#0D183E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0D183E

17.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0D183E	#FFFFFF	#000000	##FFFFFF
##0D183E	1.00	17.25	1.22	17.25
#FFFFFF	17.25	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011D3F

Deuteranopia (green-blind)

#00193D

Tritanopia (blue-blind)

#002128

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #0d183e;
/* rgb */ color: rgb(13, 24, 62);
/* oklch */ color: oklch(22.5% 0.074 267.8);

Tailwind

colors: {
  custom: {
    50: '#535474',
    500: '#0d183e',
    950: '#000000',
  },
}

SCSS

$custom: #0d183e;
$custom-light: #535474;
$custom-dark: #000000;

JSON

{
  "hex": "#0d183e",
  "rgb": {
    "r": 13,
    "g": 24,
    "b": 62
  },
  "hsl": {
    "h": 226.531,
    "s": 65.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.22544,
    "c": 0.07434,
    "h": 267.8
  },
  "luminance": 0.01087
}

Semantic roles & 50–950 ramp

primary

#0D183E

secondary

#7A682D

accent

#C240E8

background

#F5F4F7

surface

#E8E7ED

border

#C4C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #0D183E

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

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