#181E8D#181E8D

#181E8D is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.176 H 269.5°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#181E8D
RGB	rgb(24, 30, 141)
HSL	hsl(237, 71%, 32%)
HSV	hsv(237, 83%, 55%)
CMYK	cmyk(83%, 78.7%, 0%, 44.7%)
CIE-LAB	lab(20.22, 38.96, -60.80)
CIE-LCH	lch(20.22, 72.21, 302.65°)
OKLab	oklab(32.88% -0.0016 -0.1761)
OKLCH	oklch(32.88% 0.176 269.5)
XYZ	xyz(5.6470, 3.0452, 25.4843)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E8D #8D8718

analogous

#18598D #181E8D #4C188D

triadic

#181E8D #8D181E #1E8D18

tetradic

#181E8D #8D1859 #8D8718 #188D4C

square

#181E8D #8D1859 #8D8718 #188D4C

split-complementary

#181E8D #8D4C18 #598D18

monochromatic

#060824 #0F1359 #181E8D #2129C1 #4149DF

Accessibility & contrast

On white

13.05

#181E8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#181E8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E8D

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E8D	#FFFFFF	#000000	##FFFFFF
##181E8D	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003790

Deuteranopia (green-blind)

#002B8B

Tritanopia (blue-blind)

#004055

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #181e8d;
/* rgb */ color: rgb(24, 30, 141);
/* oklch */ color: oklch(32.9% 0.176 269.5);

Tailwind

colors: {
  custom: {
    50: '#6d5cb0',
    500: '#181e8d',
    950: '#000000',
  },
}

SCSS

$custom: #181e8d;
$custom-light: #6d5cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#181e8d",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 141
  },
  "hsl": {
    "h": 236.923,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.3288,
    "c": 0.17614,
    "h": 269.5
  },
  "luminance": 0.03046
}

Semantic roles & 50–950 ramp

primary

#181E8D

secondary

#BFB942

accent

#E43AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #181E8D

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

Preview Lab → · Contrast checker → · Palette generator →