#181E41#181E41

#181E41 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.066 H 273.4°. Best body text is #FFFFFF at 16.14:1 contrast (WCAG AA passes).

Color values

HEX	#181E41
RGB	rgb(24, 30, 65)
HSL	hsl(231, 46%, 17%)
HSV	hsv(231, 63%, 25%)
CMYK	cmyk(63.1%, 53.8%, 0%, 74.5%)
CIE-LAB	lab(12.64, 9.72, -23.17)
CIE-LCH	lch(12.64, 25.13, 292.75°)
OKLab	oklab(25.05% 0.0039 -0.0661)
OKLCH	oklch(25.05% 0.066 273.4)
XYZ	xyz(1.7948, 1.5043, 5.1958)
Luminance	0.0150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E41 #413B18

analogous

#183241 #181E41 #271841

triadic

#181E41 #41181E #1E4118

tetradic

#181E41 #411832 #413B18 #184127

square

#181E41 #411832 #413B18 #184127

split-complementary

#181E41 #412718 #324118

monochromatic

#080A16 #080A16 #181E41 #29336E #39479A

Accessibility & contrast

On white

16.14

#181E41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#181E41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E41

16.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E41	#FFFFFF	#000000	##FFFFFF
##181E41	1.00	16.14	1.30	16.14
#FFFFFF	16.14	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E2342

Deuteranopia (green-blind)

#081F40

Tritanopia (blue-blind)

#03262C

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #181e41;
/* rgb */ color: rgb(24, 30, 65);
/* oklch */ color: oklch(25.1% 0.066 273.4);

Tailwind

colors: {
  custom: {
    50: '#595976',
    500: '#181e41',
    950: '#000000',
  },
}

SCSS

$custom: #181e41;
$custom-light: #595976;
$custom-dark: #000000;

JSON

{
  "hex": "#181e41",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 65
  },
  "hsl": {
    "h": 231.22,
    "s": 46.067,
    "l": 17.451
  },
  "oklch": {
    "l": 0.25052,
    "c": 0.06619,
    "h": 273.4
  },
  "luminance": 0.01504
}

Semantic roles & 50–950 ramp

primary

#181E41

secondary

#786F3D

accent

#C252D6

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040308

muted

#79787B

Preview Lab

Preview with #181E41

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

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