#181D89#181D89

#181D89 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.3% C 0.172 H 269.8°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#181D89
RGB	rgb(24, 29, 137)
HSL	hsl(237, 70%, 32%)
HSV	hsv(237, 82%, 54%)
CMYK	cmyk(82.5%, 78.8%, 0%, 46.3%)
CIE-LAB	lab(19.55, 38.15, -59.41)
CIE-LCH	lch(19.55, 70.61, 302.70°)
OKLab	oklab(32.27% -0.0006 -0.1721)
OKLCH	oklch(32.27% 0.172 269.8)
XYZ	xyz(5.3299, 2.8784, 23.9367)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D89 #898418

analogous

#185689 #181D89 #4C1889

triadic

#181D89 #89181D #1D8918

tetradic

#181D89 #891856 #898418 #18894C

square

#181D89 #891856 #898418 #18894C

split-complementary

#181D89 #894C18 #568918

monochromatic

#060721 #0F1255 #181D89 #2128BD #3E45DD

Accessibility & contrast

On white

13.33

#181D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#181D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D89

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D89	#FFFFFF	#000000	##FFFFFF
##181D89	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358C

Deuteranopia (green-blind)

#002A87

Tritanopia (blue-blind)

#003E52

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #181d89;
/* rgb */ color: rgb(24, 29, 137);
/* oklch */ color: oklch(32.3% 0.172 269.8);

Tailwind

colors: {
  custom: {
    50: '#6c5bad',
    500: '#181d89',
    950: '#000000',
  },
}

SCSS

$custom: #181d89;
$custom-light: #6c5bad;
$custom-dark: #000000;

JSON

{
  "hex": "#181d89",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 137
  },
  "hsl": {
    "h": 237.345,
    "s": 70.186,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32267,
    "c": 0.1721,
    "h": 269.8
  },
  "luminance": 0.02879
}

Semantic roles & 50–950 ramp

primary

#181D89

secondary

#BDB740

accent

#E53BED

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #181D89

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

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