#181F2D#181F2D

#181F2D is a very dark, muted blue. Relative luminance 0.014; OKLCH L 23.9% C 0.029 H 263.8°. Best body text is #FFFFFF at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#181F2D
RGB	rgb(24, 31, 45)
HSL	hsl(220, 30%, 14%)
HSV	hsv(220, 47%, 18%)
CMYK	cmyk(46.7%, 31.1%, 0%, 82.4%)
CIE-LAB	lab(11.71, 1.34, -10.36)
CIE-LCH	lch(11.71, 10.44, 277.38°)
OKLab	oklab(23.93% -0.0031 -0.0288)
OKLCH	oklch(23.93% 0.029 263.8)
XYZ	xyz(1.3402, 1.3636, 2.6747)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F2D #2D2618

analogous

#18292D #181F2D #1B182D

triadic

#181F2D #2D181F #1F2D18

tetradic

#181F2D #2D1829 #2D2618 #182D1B

square

#181F2D #2D1829 #2D2618 #182D1B

split-complementary

#181F2D #2D1B18 #292D18

monochromatic

#0B0E14 #0B0E14 #181F2D #2D3A55 #43567D

Accessibility & contrast

On white

16.50

#181F2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#181F2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F2D

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F2D	#FFFFFF	#000000	##FFFFFF
##181F2D	1.00	16.50	1.27	16.50
#FFFFFF	16.50	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A202E

Deuteranopia (green-blind)

#181E2D

Tritanopia (blue-blind)

#112224

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #181f2d;
/* rgb */ color: rgb(24, 31, 45);
/* oklch */ color: oklch(23.9% 0.029 263.8);

Tailwind

colors: {
  custom: {
    50: '#555a66',
    500: '#181f2d',
    950: '#000000',
  },
}

SCSS

$custom: #181f2d;
$custom-light: #555a66;
$custom-dark: #000000;

JSON

{
  "hex": "#181f2d",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 45
  },
  "hsl": {
    "h": 220,
    "s": 30.435,
    "l": 13.529
  },
  "oklch": {
    "l": 0.23931,
    "c": 0.02895,
    "h": 263.8
  },
  "luminance": 0.01364
}

Semantic roles & 50–950 ramp

primary

#181F2D

secondary

#62563F

accent

#A561C7

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030305

muted

#78787A

Preview Lab

Preview with #181F2D

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

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