#181F89#181F89

#181F89 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.6% C 0.170 H 269.6°. Best body text is #FFFFFF at 13.16:1 contrast (WCAG AA passes).

Color values

HEX	#181F89
RGB	rgb(24, 31, 137)
HSL	hsl(236, 70%, 32%)
HSV	hsv(236, 82%, 54%)
CMYK	cmyk(82.5%, 77.4%, 0%, 46.3%)
CIE-LAB	lab(19.96, 36.97, -58.73)
CIE-LCH	lch(19.96, 69.40, 302.19°)
OKLab	oklab(32.56% -0.0012 -0.1701)
OKLCH	oklch(32.56% 0.17 269.6)
XYZ	xyz(5.3805, 2.9797, 23.9536)
Luminance	0.0298 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F89 #898218

analogous

#185889 #181F89 #4A1889

triadic

#181F89 #89181F #1F8918

tetradic

#181F89 #891858 #898218 #18894A

square

#181F89 #891858 #898218 #18894A

split-complementary

#181F89 #894A18 #588918

monochromatic

#060721 #0F1355 #181F89 #212BBD #3E48DD

Accessibility & contrast

On white

13.16

#181F89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#181F89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F89

13.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F89	#FFFFFF	#000000	##FFFFFF
##181F89	1.00	13.16	1.60	13.16
#FFFFFF	13.16	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368C

Deuteranopia (green-blind)

#002A87

Tritanopia (blue-blind)

#003F53

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #181f89;
/* rgb */ color: rgb(24, 31, 137);
/* oklch */ color: oklch(32.6% 0.170 269.6);

Tailwind

colors: {
  custom: {
    50: '#6c5cad',
    500: '#181f89',
    950: '#000000',
  },
}

SCSS

$custom: #181f89;
$custom-light: #6c5cad;
$custom-dark: #000000;

JSON

{
  "hex": "#181f89",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 137
  },
  "hsl": {
    "h": 236.283,
    "s": 70.186,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32558,
    "c": 0.17014,
    "h": 269.6
  },
  "luminance": 0.0298
}

Semantic roles & 50–950 ramp

primary

#181F89

secondary

#BDB540

accent

#E23BED

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #181F89

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

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