#181E64#181E64

#181E64 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.3% C 0.121 H 272.1°. Best body text is #FFFFFF at 14.91:1 contrast (WCAG AA passes).

Color values

HEX	#181E64
RGB	rgb(24, 30, 100)
HSL	hsl(235, 61%, 24%)
HSV	hsv(235, 76%, 39%)
CMYK	cmyk(76%, 70%, 0%, 60.8%)
CIE-LAB	lab(15.71, 23.77, -41.97)
CIE-LCH	lch(15.71, 48.23, 299.52°)
OKLab	oklab(28.3% 0.0044 -0.1213)
OKLCH	oklch(28.3% 0.121 272.1)
XYZ	xyz(3.1404, 2.0425, 12.2829)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E64 #645E18

analogous

#184464 #181E64 #381864

triadic

#181E64 #64181E #1E6418

tetradic

#181E64 #641844 #645E18 #186438

square

#181E64 #641844 #645E18 #186438

split-complementary

#181E64 #643818 #446418

monochromatic

#060719 #0C0F33 #181E64 #242D95 #303CC7

Accessibility & contrast

On white

14.91

#181E64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#181E64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E64

14.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E64	#FFFFFF	#000000	##FFFFFF
##181E64	1.00	14.91	1.41	14.91
#FFFFFF	14.91	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B66

Deuteranopia (green-blind)

#002463

Tritanopia (blue-blind)

#00313E

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181e64;
/* rgb */ color: rgb(24, 30, 100);
/* oklch */ color: oklch(28.3% 0.121 272.1);

Tailwind

colors: {
  custom: {
    50: '#625a91',
    500: '#181e64',
    950: '#000000',
  },
}

SCSS

$custom: #181e64;
$custom-light: #625a91;
$custom-dark: #000000;

JSON

{
  "hex": "#181e64",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 100
  },
  "hsl": {
    "h": 235.263,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.283,
    "c": 0.12137,
    "h": 272.1
  },
  "luminance": 0.02043
}

Semantic roles & 50–950 ramp

primary

#181E64

secondary

#9A933E

accent

#D843E4

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181E64

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

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