#10182D#10182D

#10182D is a very dark, muted blue. Relative luminance 0.010; OKLCH L 21.3% C 0.043 H 267.0°. Best body text is #FFFFFF at 17.64:1 contrast (WCAG AA passes).

Color values

HEX	#10182D
RGB	rgb(16, 24, 45)
HSL	hsl(223, 48%, 12%)
HSV	hsv(223, 64%, 18%)
CMYK	cmyk(64.4%, 46.7%, 0%, 82.4%)
CIE-LAB	lab(8.59, 4.06, -15.29)
CIE-LCH	lch(8.59, 15.82, 284.89°)
OKLab	oklab(21.34% -0.0023 -0.0432)
OKLCH	oklch(21.34% 0.043 267)
XYZ	xyz(1.0138, 0.9528, 2.6126)
Luminance	0.0095 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10182D #2D2510

analogous

#10272D #10182D #17102D

triadic

#10182D #2D1018 #182D10

tetradic

#10182D #2D1027 #2D2510 #102D17

square

#10182D #2D1027 #2D2510 #102D17

split-complementary

#10182D #2D1710 #272D10

monochromatic

#080C17 #080C17 #10182D #20305A #304887

Accessibility & contrast

On white

17.64

#10182D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#10182D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10182D

17.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10182D	#FFFFFF	#000000	##FFFFFF
##10182D	1.00	17.64	1.19	17.64
#FFFFFF	17.64	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101A2E

Deuteranopia (green-blind)

#0C172D

Tritanopia (blue-blind)

#041D20

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #10182d;
/* rgb */ color: rgb(16, 24, 45);
/* oklch */ color: oklch(21.3% 0.043 267.0);

Tailwind

colors: {
  custom: {
    50: '#505466',
    500: '#10182d',
    950: '#000000',
  },
}

SCSS

$custom: #10182d;
$custom-light: #505466;
$custom-dark: #000000;

JSON

{
  "hex": "#10182d",
  "rgb": {
    "r": 16,
    "g": 24,
    "b": 45
  },
  "hsl": {
    "h": 223.448,
    "s": 47.541,
    "l": 11.961
  },
  "oklch": {
    "l": 0.2134,
    "c": 0.0433,
    "h": 267
  },
  "luminance": 0.00953
}

Semantic roles & 50–950 ramp

primary

#10182D

secondary

#665833

accent

#B251D7

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020205

muted

#78787A

Preview Lab

Preview with #10182D

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

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