#0A152A#0A152A

#0A152A is a very dark, muted blue. Relative luminance 0.008; OKLCH L 19.8% C 0.045 H 262.2°. Best body text is #FFFFFF at 18.20:1 contrast (WCAG AA passes).

Color values

HEX	#0A152A
RGB	rgb(10, 21, 42)
HSL	hsl(219, 62%, 10%)
HSV	hsv(219, 76%, 16%)
CMYK	cmyk(76.2%, 50%, 0%, 83.5%)
CIE-LAB	lab(6.94, 3.32, -15.70)
CIE-LCH	lch(6.94, 16.05, 281.95°)
OKLab	oklab(19.84% -0.0062 -0.0449)
OKLCH	oklch(19.84% 0.045 262.2)
XYZ	xyz(0.8111, 0.7680, 2.2955)
Luminance	0.0077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A152A #2A1F0A

analogous

#0A252A #0A152A #0F0A2A

triadic

#0A152A #2A0A15 #152A0A

tetradic

#0A152A #2A0A25 #2A1F0A #0A2A0F

square

#0A152A #2A0A25 #2A1F0A #0A2A0F

split-complementary

#0A152A #2A0F0A #252A0A

monochromatic

#060C19 #060C19 #0A152A #162E5B #22468D

Accessibility & contrast

On white

18.20

#0A152A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#0A152A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A152A

18.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A152A	#FFFFFF	#000000	##FFFFFF
##0A152A	1.00	18.20	1.15	18.20
#FFFFFF	18.20	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C172B

Deuteranopia (green-blind)

#08142A

Tritanopia (blue-blind)

#001A1D

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #0a152a;
/* rgb */ color: rgb(10, 21, 42);
/* oklch */ color: oklch(19.8% 0.045 262.2);

Tailwind

colors: {
  custom: {
    50: '#4c5263',
    500: '#0a152a',
    950: '#000000',
  },
}

SCSS

$custom: #0a152a;
$custom-light: #4c5263;
$custom-dark: #000000;

JSON

{
  "hex": "#0a152a",
  "rgb": {
    "r": 10,
    "g": 21,
    "b": 42
  },
  "hsl": {
    "h": 219.375,
    "s": 61.538,
    "l": 10.196
  },
  "oklch": {
    "l": 0.19842,
    "c": 0.04532,
    "h": 262.2
  },
  "luminance": 0.00768
}

Semantic roles & 50–950 ramp

primary

#0A152A

secondary

#675229

accent

#AD43E5

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010205

muted

#777879

Preview Lab

Preview with #0A152A

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

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