#181D68#181D68

#181D68 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.5% C 0.128 H 272.1°. Best body text is #FFFFFF at 14.85:1 contrast (WCAG AA passes).

Color values

HEX	#181D68
RGB	rgb(24, 29, 104)
HSL	hsl(236, 63%, 25%)
HSV	hsv(236, 77%, 41%)
CMYK	cmyk(76.9%, 72.1%, 0%, 59.2%)
CIE-LAB	lab(15.86, 26.01, -44.35)
CIE-LCH	lch(15.86, 51.41, 300.39°)
OKLab	oklab(28.54% 0.0046 -0.1283)
OKLCH	oklch(28.54% 0.128 272.1)
XYZ	xyz(3.3139, 2.0721, 13.3193)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D68 #686318

analogous

#184568 #181D68 #3B1868

triadic

#181D68 #68181D #1D6818

tetradic

#181D68 #681845 #686318 #18683B

square

#181D68 #681845 #686318 #18683B

split-complementary

#181D68 #683B18 #456818

monochromatic

#060719 #0D0F36 #181D68 #232B9A #2F39CB

Accessibility & contrast

On white

14.85

#181D68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#181D68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D68

14.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D68	#FFFFFF	#000000	##FFFFFF
##181D68	1.00	14.85	1.41	14.85
#FFFFFF	14.85	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6A

Deuteranopia (green-blind)

#002467

Tritanopia (blue-blind)

#003140

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181d68;
/* rgb */ color: rgb(24, 29, 104);
/* oklch */ color: oklch(28.5% 0.128 272.1);

Tailwind

colors: {
  custom: {
    50: '#635994',
    500: '#181d68',
    950: '#000000',
  },
}

SCSS

$custom: #181d68;
$custom-light: #635994;
$custom-dark: #000000;

JSON

{
  "hex": "#181d68",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 104
  },
  "hsl": {
    "h": 236.25,
    "s": 62.5,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28535,
    "c": 0.12834,
    "h": 272.1
  },
  "luminance": 0.02072
}

Semantic roles & 50–950 ramp

primary

#181D68

secondary

#9E983E

accent

#DB42E6

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181D68

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

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