#181789#181789

#181789 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.177 H 270.4°. Best body text is #FFFFFF at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#181789
RGB	rgb(24, 23, 137)
HSL	hsl(241, 71%, 31%)
HSV	hsv(241, 83%, 54%)
CMYK	cmyk(82.5%, 83.2%, 0%, 46.3%)
CIE-LAB	lab(18.42, 41.41, -61.29)
CIE-LCH	lch(18.42, 73.97, 304.05°)
OKLab	oklab(31.48% 0.0011 -0.1774)
OKLCH	oklch(31.48% 0.177 270.4)
XYZ	xyz(5.1969, 2.6125, 23.8924)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181789 #888917

analogous

#174F89 #181789 #511789

triadic

#181789 #891817 #178918

tetradic

#181789 #89174F #888917 #178951

square

#181789 #89174F #888917 #178951

split-complementary

#181789 #895117 #4F8917

monochromatic

#060520 #0F0E55 #181789 #2120BD #3E3CDE

Accessibility & contrast

On white

13.79

#181789 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#181789 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181789

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181789	#FFFFFF	#000000	##FFFFFF
##181789	1.00	13.79	1.52	13.79
#FFFFFF	13.79	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338C

Deuteranopia (green-blind)

#002787

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #181789;
/* rgb */ color: rgb(24, 23, 137);
/* oklch */ color: oklch(31.5% 0.177 270.4);

Tailwind

colors: {
  custom: {
    50: '#6d57ad',
    500: '#181789',
    950: '#000000',
  },
}

SCSS

$custom: #181789;
$custom-light: #6d57ad;
$custom-dark: #000000;

JSON

{
  "hex": "#181789",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 137
  },
  "hsl": {
    "h": 240.526,
    "s": 71.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31475,
    "c": 0.17743,
    "h": 270.4
  },
  "luminance": 0.02613
}

Semantic roles & 50–950 ramp

primary

#181789

secondary

#BCBD3F

accent

#EE3AEC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #181789

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

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