#10182F#10182F

#10182F is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.5% C 0.047 H 267.9°. Best body text is #FFFFFF at 17.59:1 contrast (WCAG AA passes).

Color values

HEX	#10182F
RGB	rgb(16, 24, 47)
HSL	hsl(225, 49%, 12%)
HSV	hsv(225, 66%, 18%)
CMYK	cmyk(66%, 48.9%, 0%, 81.6%)
CIE-LAB	lab(8.73, 4.89, -16.54)
CIE-LCH	lch(8.73, 17.25, 286.46°)
OKLab	oklab(21.49% -0.0017 -0.0469)
OKLCH	oklch(21.49% 0.047 267.9)
XYZ	xyz(1.0532, 0.9686, 2.8202)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10182F #2F2710

analogous

#10282F #10182F #18102F

triadic

#10182F #2F1018 #182F10

tetradic

#10182F #2F1028 #2F2710 #102F18

square

#10182F #2F1028 #2F2710 #102F18

split-complementary

#10182F #2F1810 #282F10

monochromatic

#080C17 #080C17 #10182F #202F5D #2F478A

Accessibility & contrast

On white

17.59

#10182F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#10182F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10182F

17.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10182F	#FFFFFF	#000000	##FFFFFF
##10182F	1.00	17.59	1.19	17.59
#FFFFFF	17.59	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E1A30

Deuteranopia (green-blind)

#0B182F

Tritanopia (blue-blind)

#021D21

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #10182f;
/* rgb */ color: rgb(16, 24, 47);
/* oklch */ color: oklch(21.5% 0.047 267.9);

Tailwind

colors: {
  custom: {
    50: '#515467',
    500: '#10182f',
    950: '#000000',
  },
}

SCSS

$custom: #10182f;
$custom-light: #515467;
$custom-dark: #000000;

JSON

{
  "hex": "#10182f",
  "rgb": {
    "r": 16,
    "g": 24,
    "b": 47
  },
  "hsl": {
    "h": 224.516,
    "s": 49.206,
    "l": 12.353
  },
  "oklch": {
    "l": 0.21488,
    "c": 0.04694,
    "h": 267.9
  },
  "luminance": 0.00969
}

Semantic roles & 50–950 ramp

primary

#10182F

secondary

#685A33

accent

#B54FD9

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #10182F

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

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