#12182D#12182D

#12182D is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.5% C 0.042 H 270.5°. Best body text is #FFFFFF at 17.58:1 contrast (WCAG AA passes).

Color values

HEX	#12182D
RGB	rgb(18, 24, 45)
HSL	hsl(227, 43%, 12%)
HSV	hsv(227, 60%, 18%)
CMYK	cmyk(60%, 46.7%, 0%, 82.4%)
CIE-LAB	lab(8.75, 4.66, -15.03)
CIE-LCH	lch(8.75, 15.73, 287.24°)
OKLab	oklab(21.5% 0.0003 -0.0424)
OKLCH	oklch(21.5% 0.042 270.5)
XYZ	xyz(1.0496, 0.9713, 2.6143)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12182D #2D2712

analogous

#12262D #12182D #1A122D

triadic

#12182D #2D1218 #182D12

tetradic

#12182D #2D1226 #2D2712 #122D1A

square

#12182D #2D1226 #2D2712 #122D1A

split-complementary

#12182D #2D1A12 #262D12

monochromatic

#090C16 #090C16 #12182D #232F59 #354784

Accessibility & contrast

On white

17.58

#12182D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#12182D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12182D

17.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12182D	#FFFFFF	#000000	##FFFFFF
##12182D	1.00	17.58	1.19	17.58
#FFFFFF	17.58	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101A2E

Deuteranopia (green-blind)

#0D182D

Tritanopia (blue-blind)

#071C20

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #12182d;
/* rgb */ color: rgb(18, 24, 45);
/* oklch */ color: oklch(21.5% 0.042 270.5);

Tailwind

colors: {
  custom: {
    50: '#525466',
    500: '#12182d',
    950: '#000000',
  },
}

SCSS

$custom: #12182d;
$custom-light: #525466;
$custom-dark: #000000;

JSON

{
  "hex": "#12182d",
  "rgb": {
    "r": 18,
    "g": 24,
    "b": 45
  },
  "hsl": {
    "h": 226.667,
    "s": 42.857,
    "l": 12.353
  },
  "oklch": {
    "l": 0.21503,
    "c": 0.04243,
    "h": 270.5
  },
  "luminance": 0.00971
}

Semantic roles & 50–950 ramp

primary

#12182D

secondary

#655A36

accent

#B755D3

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020205

muted

#78787A

Preview Lab

Preview with #12182D

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

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