#181A89#181A89

#181A89 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.175 H 270.1°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#181A89
RGB	rgb(24, 26, 137)
HSL	hsl(239, 70%, 32%)
HSV	hsv(239, 82%, 54%)
CMYK	cmyk(82.5%, 81%, 0%, 46.3%)
CIE-LAB	lab(18.96, 39.83, -60.38)
CIE-LCH	lch(18.96, 72.34, 303.41°)
OKLab	oklab(31.86% 0.0003 -0.1749)
OKLCH	oklch(31.86% 0.175 270.1)
XYZ	xyz(5.2599, 2.7385, 23.9134)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A89 #898718

analogous

#185389 #181A89 #4F1889

triadic

#181A89 #89181A #1A8918

tetradic

#181A89 #891853 #898718 #18894F

square

#181A89 #891853 #898718 #18894F

split-complementary

#181A89 #894F18 #538918

monochromatic

#060621 #0F1055 #181A89 #2124BD #3E41DD

Accessibility & contrast

On white

13.57

#181A89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#181A89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A89

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A89	#FFFFFF	#000000	##FFFFFF
##181A89	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348C

Deuteranopia (green-blind)

#002887

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #181a89;
/* rgb */ color: rgb(24, 26, 137);
/* oklch */ color: oklch(31.9% 0.175 270.1);

Tailwind

colors: {
  custom: {
    50: '#6c59ad',
    500: '#181a89',
    950: '#000000',
  },
}

SCSS

$custom: #181a89;
$custom-light: #6c59ad;
$custom-dark: #000000;

JSON

{
  "hex": "#181a89",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 137
  },
  "hsl": {
    "h": 238.938,
    "s": 70.186,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31855,
    "c": 0.17487,
    "h": 270.1
  },
  "luminance": 0.02739
}

Semantic roles & 50–950 ramp

primary

#181A89

secondary

#BDBA40

accent

#EA3BED

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #181A89

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

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