#181E70#181E70

#181E70 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.6% C 0.138 H 271.3°. Best body text is #FFFFFF at 14.40:1 contrast (WCAG AA passes).

Color values

HEX	#181E70
RGB	rgb(24, 30, 112)
HSL	hsl(236, 65%, 27%)
HSV	hsv(236, 79%, 44%)
CMYK	cmyk(78.6%, 73.2%, 0%, 56.1%)
CIE-LAB	lab(16.95, 28.40, -47.77)
CIE-LCH	lch(16.95, 55.58, 300.73°)
OKLab	oklab(29.58% 0.003 -0.1383)
OKLCH	oklch(29.58% 0.138 271.3)
XYZ	xyz(3.7646, 2.2922, 15.5701)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E70 #706A18

analogous

#184A70 #181E70 #3E1870

triadic

#181E70 #70181E #1E7018

tetradic

#181E70 #70184A #706A18 #18703E

square

#181E70 #70184A #706A18 #18703E

split-complementary

#181E70 #703E18 #4A7018

monochromatic

#050719 #0D113E #181E70 #232CA2 #303BD3

Accessibility & contrast

On white

14.40

#181E70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#181E70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E70

14.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E70	#FFFFFF	#000000	##FFFFFF
##181E70	1.00	14.40	1.46	14.40
#FFFFFF	14.40	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E72

Deuteranopia (green-blind)

#00266E

Tritanopia (blue-blind)

#003544

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #181e70;
/* rgb */ color: rgb(24, 30, 112);
/* oklch */ color: oklch(29.6% 0.138 271.3);

Tailwind

colors: {
  custom: {
    50: '#655a9a',
    500: '#181e70',
    950: '#000000',
  },
}

SCSS

$custom: #181e70;
$custom-light: #655a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#181e70",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 112
  },
  "hsl": {
    "h": 235.909,
    "s": 64.706,
    "l": 26.667
  },
  "oklch": {
    "l": 0.29578,
    "c": 0.13829,
    "h": 271.3
  },
  "luminance": 0.02293
}

Semantic roles & 50–950 ramp

primary

#181E70

secondary

#A59E3E

accent

#DC40E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #181E70

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

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