#181F2E#181F2E

#181F2E is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.0% C 0.031 H 264.9°. Best body text is #FFFFFF at 16.48:1 contrast (WCAG AA passes).

Color values

HEX	#181F2E
RGB	rgb(24, 31, 46)
HSL	hsl(221, 31%, 14%)
HSV	hsv(221, 48%, 18%)
CMYK	cmyk(47.8%, 32.6%, 0%, 82%)
CIE-LAB	lab(11.77, 1.70, -11.00)
CIE-LCH	lch(11.77, 11.13, 278.77°)
OKLab	oklab(23.99% -0.0027 -0.0306)
OKLCH	oklch(23.99% 0.031 264.9)
XYZ	xyz(1.3597, 1.3714, 2.7773)
Luminance	0.0137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F2E #2E2718

analogous

#182A2E #181F2E #1C182E

triadic

#181F2E #2E181F #1F2E18

tetradic

#181F2E #2E182A #2E2718 #182E1C

square

#181F2E #2E182A #2E2718 #182E1C

split-complementary

#181F2E #2E1C18 #2A2E18

monochromatic

#0A0E14 #0A0E14 #181F2E #2D3A56 #42557E

Accessibility & contrast

On white

16.48

#181F2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#181F2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F2E

16.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F2E	#FFFFFF	#000000	##FFFFFF
##181F2E	1.00	16.48	1.27	16.48
#FFFFFF	16.48	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A202F

Deuteranopia (green-blind)

#181E2E

Tritanopia (blue-blind)

#112224

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #181f2e;
/* rgb */ color: rgb(24, 31, 46);
/* oklch */ color: oklch(24.0% 0.031 264.9);

Tailwind

colors: {
  custom: {
    50: '#565a66',
    500: '#181f2e',
    950: '#000000',
  },
}

SCSS

$custom: #181f2e;
$custom-light: #565a66;
$custom-dark: #000000;

JSON

{
  "hex": "#181f2e",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 46
  },
  "hsl": {
    "h": 220.909,
    "s": 31.429,
    "l": 13.725
  },
  "oklch": {
    "l": 0.23989,
    "c": 0.03074,
    "h": 264.9
  },
  "luminance": 0.01371
}

Semantic roles & 50–950 ramp

primary

#181F2E

secondary

#63573F

accent

#A760C8

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030306

muted

#78787A

Preview Lab

Preview with #181F2E

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

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