#08183B#08183B

#08183B is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.0% C 0.071 H 263.2°. Best body text is #FFFFFF at 17.44:1 contrast (WCAG AA passes).

Color values

HEX	#08183B
RGB	rgb(8, 24, 59)
HSL	hsl(221, 76%, 13%)
HSV	hsv(221, 86%, 23%)
CMYK	cmyk(86.4%, 59.3%, 0%, 76.9%)
CIE-LAB	lab(9.16, 8.49, -24.57)
CIE-LCH	lch(9.16, 25.99, 289.06°)
OKLab	oklab(21.99% -0.0085 -0.0707)
OKLCH	oklch(21.99% 0.071 263.2)
XYZ	xyz(1.2159, 1.0205, 4.2697)
Luminance	0.0102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#08183B #3B2B08

analogous

#08313B #08183B #11083B

triadic

#08183B #3B0818 #183B08

tetradic

#08183B #3B0831 #3B2B08 #083B11

square

#08183B #3B0831 #3B2B08 #083B11

split-complementary

#08183B #3B1108 #313B08

monochromatic

#040B1B #040B1B #08183B #0F2E71 #1744A7

Accessibility & contrast

On white

17.44

#08183B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#08183B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #08183B

17.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##08183B	#FFFFFF	#000000	##FFFFFF
##08183B	1.00	17.44	1.20	17.44
#FFFFFF	17.44	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#031C3C

Deuteranopia (green-blind)

#00183A

Tritanopia (blue-blind)

#002026

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #08183b;
/* rgb */ color: rgb(8, 24, 59);
/* oklch */ color: oklch(22.0% 0.071 263.2);

Tailwind

colors: {
  custom: {
    50: '#505471',
    500: '#08183b',
    950: '#000000',
  },
}

SCSS

$custom: #08183b;
$custom-light: #505471;
$custom-dark: #000000;

JSON

{
  "hex": "#08183b",
  "rgb": {
    "r": 8,
    "g": 24,
    "b": 59
  },
  "hsl": {
    "h": 221.176,
    "s": 76.119,
    "l": 13.137
  },
  "oklch": {
    "l": 0.21985,
    "c": 0.07118,
    "h": 263.2
  },
  "luminance": 0.01021
}

Semantic roles & 50–950 ramp

primary

#08183B

secondary

#7A5F25

accent

#B735F3

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #08183B

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

Preview Lab → · Contrast checker → · Palette generator →