#0A182D#0A182D

#0A182D is a very dark, muted blue. Relative luminance 0.009; OKLCH L 20.9% C 0.046 H 258.3°. Best body text is #FFFFFF at 17.78:1 contrast (WCAG AA passes).

Color values

HEX	#0A182D
RGB	rgb(10, 24, 45)
HSL	hsl(216, 64%, 11%)
HSV	hsv(216, 78%, 18%)
CMYK	cmyk(77.8%, 46.7%, 0%, 82.4%)
CIE-LAB	lab(8.19, 2.48, -15.94)
CIE-LCH	lch(8.19, 16.14, 278.85°)
OKLab	oklab(20.92% -0.0094 -0.0453)
OKLCH	oklch(20.92% 0.046 258.3)
XYZ	xyz(0.9253, 0.9072, 2.6085)
Luminance	0.0091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A182D #2D1F0A

analogous

#0A292D #0A182D #0D0A2D

triadic

#0A182D #2D0A18 #182D0A

tetradic

#0A182D #2D0A29 #2D1F0A #0A2D0D

square

#0A182D #2D0A29 #2D1F0A #0A2D0D

split-complementary

#0A182D #2D0D0A #292D0A

monochromatic

#060D19 #060D19 #0A182D #15335F #204D91

Accessibility & contrast

On white

17.78

#0A182D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#0A182D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A182D

17.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A182D	#FFFFFF	#000000	##FFFFFF
##0A182D	1.00	17.78	1.18	17.78
#FFFFFF	17.78	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F1A2E

Deuteranopia (green-blind)

#0A162D

Tritanopia (blue-blind)

#001D20

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #0a182d;
/* rgb */ color: rgb(10, 24, 45);
/* oklch */ color: oklch(20.9% 0.046 258.3);

Tailwind

colors: {
  custom: {
    50: '#4d5466',
    500: '#0a182d',
    950: '#000000',
  },
}

SCSS

$custom: #0a182d;
$custom-light: #4d5466;
$custom-dark: #000000;

JSON

{
  "hex": "#0a182d",
  "rgb": {
    "r": 10,
    "g": 24,
    "b": 45
  },
  "hsl": {
    "h": 216,
    "s": 63.636,
    "l": 10.784
  },
  "oklch": {
    "l": 0.20923,
    "c": 0.04626,
    "h": 258.3
  },
  "luminance": 0.00907
}

Semantic roles & 50–950 ramp

primary

#0A182D

secondary

#6A5029

accent

#A441E7

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #0A182D

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

Preview Lab → · Contrast checker → · Palette generator →