#0A152C#0A152C

#0A152C is a very dark, muted blue. Relative luminance 0.008; OKLCH L 20.0% C 0.049 H 263.4°. Best body text is #FFFFFF at 18.16:1 contrast (WCAG AA passes).

Color values

HEX	#0A152C
RGB	rgb(10, 21, 44)
HSL	hsl(221, 63%, 11%)
HSV	hsv(221, 77%, 17%)
CMYK	cmyk(77.3%, 52.3%, 0%, 82.7%)
CIE-LAB	lab(7.07, 4.26, -16.99)
CIE-LCH	lch(7.07, 17.51, 284.07°)
OKLab	oklab(20% -0.0056 -0.0486)
OKLCH	oklch(20% 0.049 263.4)
XYZ	xyz(0.8478, 0.7826, 2.4888)
Luminance	0.0078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A152C #2C210A

analogous

#0A262C #0A152C #100A2C

triadic

#0A152C #2C0A15 #152C0A

tetradic

#0A152C #2C0A26 #2C210A #0A2C10

square

#0A152C #2C0A26 #2C210A #0A2C10

split-complementary

#0A152C #2C100A #262C0A

monochromatic

#060C19 #060C19 #0A152C #152D5E #214590

Accessibility & contrast

On white

18.16

#0A152C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0A152C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A152C

18.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A152C	#FFFFFF	#000000	##FFFFFF
##0A152C	1.00	18.16	1.16	18.16
#FFFFFF	18.16	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B172D

Deuteranopia (green-blind)

#06142C

Tritanopia (blue-blind)

#001A1E

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0a152c;
/* rgb */ color: rgb(10, 21, 44);
/* oklch */ color: oklch(20.0% 0.049 263.4);

Tailwind

colors: {
  custom: {
    50: '#4d5165',
    500: '#0a152c',
    950: '#000000',
  },
}

SCSS

$custom: #0a152c;
$custom-light: #4d5165;
$custom-dark: #000000;

JSON

{
  "hex": "#0a152c",
  "rgb": {
    "r": 10,
    "g": 21,
    "b": 44
  },
  "hsl": {
    "h": 220.588,
    "s": 62.963,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20001,
    "c": 0.04893,
    "h": 263.4
  },
  "luminance": 0.00783
}

Semantic roles & 50–950 ramp

primary

#0A152C

secondary

#695429

accent

#B142E6

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #0A152C

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

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