#0A151F#0A151F

#0A151F is a very dark, muted cyan. Relative luminance 0.007; OKLCH L 19.1% C 0.026 H 247.0°. Best body text is #FFFFFF at 18.42:1 contrast (WCAG AA passes).

Color values

HEX	#0A151F
RGB	rgb(10, 21, 31)
HSL	hsl(209, 51%, 8%)
HSV	hsv(209, 68%, 12%)
CMYK	cmyk(67.7%, 32.3%, 0%, 87.8%)
CIE-LAB	lab(6.32, -1.00, -8.34)
CIE-LCH	lch(6.32, 8.40, 263.16°)
OKLab	oklab(19.07% -0.0101 -0.0239)
OKLCH	oklch(19.07% 0.026 247)
XYZ	xyz(0.6406, 0.6997, 1.3974)
Luminance	0.0070 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A151F #1F140A

analogous

#0A1F1E #0A151F #0A0A1F

triadic

#0A151F #1F0A15 #151F0A

tetradic

#0A151F #1E0A1F #1F140A #0A1F0A

square

#0A151F #1E0A1F #1F140A #0A1F0A

split-complementary

#0A151F #1F0A0A #1F1E0A

monochromatic

#071017 #071017 #0A151F #19344D #28547C

Accessibility & contrast

On white

18.42

#0A151F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#0A151F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A151F

18.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A151F	#FFFFFF	#000000	##FFFFFF
##0A151F	1.00	18.42	1.14	18.42
#FFFFFF	18.42	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11151F

Deuteranopia (green-blind)

#0E131F

Tritanopia (blue-blind)

#031718

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #0a151f;
/* rgb */ color: rgb(10, 21, 31);
/* oklch */ color: oklch(19.1% 0.026 247.0);

Tailwind

colors: {
  custom: {
    50: '#4b525a',
    500: '#0a151f',
    950: '#000000',
  },
}

SCSS

$custom: #0a151f;
$custom-light: #4b525a;
$custom-dark: #000000;

JSON

{
  "hex": "#0a151f",
  "rgb": {
    "r": 10,
    "g": 21,
    "b": 31
  },
  "hsl": {
    "h": 208.571,
    "s": 51.22,
    "l": 8.039
  },
  "oklch": {
    "l": 0.19067,
    "c": 0.02599,
    "h": 247
  },
  "luminance": 0.007
}

Semantic roles & 50–950 ramp

primary

#0A151F

secondary

#5A412B

accent

#914DDB

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010203

muted

#777878

Preview Lab

Preview with #0A151F

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

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