#0A121F#0A121F

#0A121F is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.2% C 0.030 H 259.8°. Best body text is #FFFFFF at 18.76:1 contrast (WCAG AA passes).

Color values

HEX	#0A121F
RGB	rgb(10, 18, 31)
HSL	hsl(217, 51%, 8%)
HSV	hsv(217, 68%, 12%)
CMYK	cmyk(67.7%, 41.9%, 0%, 87.8%)
CIE-LAB	lab(5.38, 0.91, -9.76)
CIE-LCH	lch(5.38, 9.81, 275.33°)
OKLab	oklab(18.16% -0.0052 -0.0291)
OKLCH	oklch(18.16% 0.03 259.8)
XYZ	xyz(0.5887, 0.5960, 1.3801)
Luminance	0.0060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A121F #1F170A

analogous

#0A1C1F #0A121F #0C0A1F

triadic

#0A121F #1F0A12 #121F0A

tetradic

#0A121F #1F0A1C #1F170A #0A1F0C

square

#0A121F #1F0A1C #1F170A #0A1F0C

split-complementary

#0A121F #1F0C0A #1C1F0A

monochromatic

#070D17 #070D17 #0A121F #192D4D #28487C

Accessibility & contrast

On white

18.76

#0A121F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#0A121F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A121F

18.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A121F	#FFFFFF	#000000	##FFFFFF
##0A121F	1.00	18.76	1.12	18.76
#FFFFFF	18.76	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D1320

Deuteranopia (green-blind)

#0B111F

Tritanopia (blue-blind)

#031517

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #0a121f;
/* rgb */ color: rgb(10, 18, 31);
/* oklch */ color: oklch(18.2% 0.030 259.8);

Tailwind

colors: {
  custom: {
    50: '#4b505a',
    500: '#0a121f',
    950: '#000000',
  },
}

SCSS

$custom: #0a121f;
$custom-light: #4b505a;
$custom-dark: #000000;

JSON

{
  "hex": "#0a121f",
  "rgb": {
    "r": 10,
    "g": 18,
    "b": 31
  },
  "hsl": {
    "h": 217.143,
    "s": 51.22,
    "l": 8.039
  },
  "oklch": {
    "l": 0.18161,
    "c": 0.0296,
    "h": 259.8
  },
  "luminance": 0.00596
}

Semantic roles & 50–950 ramp

primary

#0A121F

secondary

#5A482B

accent

#A54DDB

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010203

muted

#777878

Preview Lab

Preview with #0A121F

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

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