#181F2F#181F2F

#181F2F is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.0% C 0.033 H 265.9°. Best body text is #FFFFFF at 16.46:1 contrast (WCAG AA passes).

Color values

HEX	#181F2F
RGB	rgb(24, 31, 47)
HSL	hsl(222, 32%, 14%)
HSV	hsv(222, 49%, 18%)
CMYK	cmyk(48.9%, 34%, 0%, 81.6%)
CIE-LAB	lab(11.82, 2.06, -11.64)
CIE-LCH	lch(11.82, 11.82, 280.02°)
OKLab	oklab(24.05% -0.0023 -0.0325)
OKLCH	oklch(24.05% 0.033 265.9)
XYZ	xyz(1.3796, 1.3793, 2.8823)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F2F #2F2818

analogous

#182B2F #181F2F #1D182F

triadic

#181F2F #2F181F #1F2F18

tetradic

#181F2F #2F182B #2F2818 #182F1D

square

#181F2F #2F182B #2F2818 #182F1D

split-complementary

#181F2F #2F1D18 #2B2F18

monochromatic

#0A0D14 #0A0D14 #181F2F #2D3A58 #415480

Accessibility & contrast

On white

16.46

#181F2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#181F2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F2F

16.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F2F	#FFFFFF	#000000	##FFFFFF
##181F2F	1.00	16.46	1.28	16.46
#FFFFFF	16.46	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#192030

Deuteranopia (green-blind)

#171E2F

Tritanopia (blue-blind)

#102225

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #181f2f;
/* rgb */ color: rgb(24, 31, 47);
/* oklch */ color: oklch(24.0% 0.033 265.9);

Tailwind

colors: {
  custom: {
    50: '#565a67',
    500: '#181f2f',
    950: '#000000',
  },
}

SCSS

$custom: #181f2f;
$custom-light: #565a67;
$custom-dark: #000000;

JSON

{
  "hex": "#181f2f",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 47
  },
  "hsl": {
    "h": 221.739,
    "s": 32.394,
    "l": 13.922
  },
  "oklch": {
    "l": 0.24049,
    "c": 0.03254,
    "h": 265.9
  },
  "luminance": 0.01379
}

Semantic roles & 50–950 ramp

primary

#181F2F

secondary

#64593F

accent

#A85FC9

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030306

muted

#78787A

Preview Lab

Preview with #181F2F

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

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