#181E77#181E77

#181E77 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.4% C 0.148 H 270.8°. Best body text is #FFFFFF at 14.08:1 contrast (WCAG AA passes).

Color values

HEX	#181E77
RGB	rgb(24, 30, 119)
HSL	hsl(236, 66%, 28%)
HSV	hsv(236, 80%, 47%)
CMYK	cmyk(79.8%, 74.8%, 0%, 53.3%)
CIE-LAB	lab(17.71, 31.04, -51.04)
CIE-LCH	lch(17.71, 59.74, 301.31°)
OKLab	oklab(30.35% 0.002 -0.1478)
OKLCH	oklch(30.35% 0.148 270.8)
XYZ	xyz(4.1696, 2.4542, 17.7031)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E77 #777118

analogous

#184D77 #181E77 #421877

triadic

#181E77 #77181E #1E7718

tetradic

#181E77 #77184D #777118 #187742

square

#181E77 #77184D #777118 #187742

split-complementary

#181E77 #774218 #4D7718

monochromatic

#050619 #0E1144 #181E77 #222BAA #333ED6

Accessibility & contrast

On white

14.08

#181E77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#181E77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E77

14.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E77	#FFFFFF	#000000	##FFFFFF
##181E77	1.00	14.08	1.49	14.08
#FFFFFF	14.08	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307A

Deuteranopia (green-blind)

#002775

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181e77;
/* rgb */ color: rgb(24, 30, 119);
/* oklch */ color: oklch(30.4% 0.148 270.8);

Tailwind

colors: {
  custom: {
    50: '#675a9f',
    500: '#181e77',
    950: '#000000',
  },
}

SCSS

$custom: #181e77;
$custom-light: #675a9f;
$custom-dark: #000000;

JSON

{
  "hex": "#181e77",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 119
  },
  "hsl": {
    "h": 236.211,
    "s": 66.434,
    "l": 28.039
  },
  "oklch": {
    "l": 0.30351,
    "c": 0.14778,
    "h": 270.8
  },
  "luminance": 0.02455
}

Semantic roles & 50–950 ramp

primary

#181E77

secondary

#ACA53F

accent

#DF3EE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #181E77

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

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