#0A152F#0A152F

#0A152F is a very dark, muted blue. Relative luminance 0.008; OKLCH L 20.2% C 0.054 H 264.8°. Best body text is #FFFFFF at 18.08:1 contrast (WCAG AA passes).

Color values

HEX	#0A152F
RGB	rgb(10, 21, 47)
HSL	hsl(222, 65%, 11%)
HSV	hsv(222, 79%, 18%)
CMYK	cmyk(78.7%, 55.3%, 0%, 81.6%)
CIE-LAB	lab(7.28, 5.68, -18.87)
CIE-LCH	lch(7.28, 19.71, 286.75°)
OKLab	oklab(20.25% -0.005 -0.054)
OKLCH	oklch(20.25% 0.054 264.8)
XYZ	xyz(0.9063, 0.8060, 2.7966)
Luminance	0.0081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A152F #2F240A

analogous

#0A272F #0A152F #110A2F

triadic

#0A152F #2F0A15 #152F0A

tetradic

#0A152F #2F0A27 #2F240A #0A2F11

square

#0A152F #2F0A27 #2F240A #0A2F11

split-complementary

#0A152F #2F110A #272F0A

monochromatic

#050B19 #050B19 #0A152F #152C61 #1F4294

Accessibility & contrast

On white

18.08

#0A152F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#0A152F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A152F

18.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A152F	#FFFFFF	#000000	##FFFFFF
##0A152F	1.00	18.08	1.16	18.08
#FFFFFF	18.08	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#081830

Deuteranopia (green-blind)

#04142E

Tritanopia (blue-blind)

#001B1F

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #0a152f;
/* rgb */ color: rgb(10, 21, 47);
/* oklch */ color: oklch(20.2% 0.054 264.8);

Tailwind

colors: {
  custom: {
    50: '#4e5167',
    500: '#0a152f',
    950: '#000000',
  },
}

SCSS

$custom: #0a152f;
$custom-light: #4e5167;
$custom-dark: #000000;

JSON

{
  "hex": "#0a152f",
  "rgb": {
    "r": 10,
    "g": 21,
    "b": 47
  },
  "hsl": {
    "h": 222.162,
    "s": 64.912,
    "l": 11.176
  },
  "oklch": {
    "l": 0.20249,
    "c": 0.05428,
    "h": 264.8
  },
  "luminance": 0.00806
}

Semantic roles & 50–950 ramp

primary

#0A152F

secondary

#6C5829

accent

#B640E8

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #0A152F

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

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