#12182B#12182B

#12182B is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.4% C 0.039 H 269.6°. Best body text is #FFFFFF at 17.63:1 contrast (WCAG AA passes).

Color values

HEX	#12182B
RGB	rgb(18, 24, 43)
HSL	hsl(226, 41%, 12%)
HSV	hsv(226, 58%, 17%)
CMYK	cmyk(58.1%, 44.2%, 0%, 83.1%)
CIE-LAB	lab(8.62, 3.87, -13.75)
CIE-LCH	lch(8.62, 14.29, 285.73°)
OKLab	oklab(21.36% -0.0002 -0.0387)
OKLCH	oklch(21.36% 0.039 269.6)
XYZ	xyz(1.0120, 0.9562, 2.4163)
Luminance	0.0096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12182B #2B2512

analogous

#12252B #12182B #19122B

triadic

#12182B #2B1218 #182B12

tetradic

#12182B #2B1225 #2B2512 #122B19

square

#12182B #2B1225 #2B2512 #122B19

split-complementary

#12182B #2B1912 #252B12

monochromatic

#090C16 #090C16 #12182B #243056 #364881

Accessibility & contrast

On white

17.63

#12182B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#12182B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12182B

17.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12182B	#FFFFFF	#000000	##FFFFFF
##12182B	1.00	17.63	1.19	17.63
#FFFFFF	17.63	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#111A2C

Deuteranopia (green-blind)

#0E182B

Tritanopia (blue-blind)

#081C1F

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #12182b;
/* rgb */ color: rgb(18, 24, 43);
/* oklch */ color: oklch(21.4% 0.039 269.6);

Tailwind

colors: {
  custom: {
    50: '#515464',
    500: '#12182b',
    950: '#000000',
  },
}

SCSS

$custom: #12182b;
$custom-light: #515464;
$custom-dark: #000000;

JSON

{
  "hex": "#12182b",
  "rgb": {
    "r": 18,
    "g": 24,
    "b": 43
  },
  "hsl": {
    "h": 225.6,
    "s": 40.984,
    "l": 11.961
  },
  "oklch": {
    "l": 0.21362,
    "c": 0.03872,
    "h": 269.6
  },
  "luminance": 0.00956
}

Semantic roles & 50–950 ramp

primary

#12182B

secondary

#625836

accent

#B457D1

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020205

muted

#78787A

Preview Lab

Preview with #12182B

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

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