#181589#181589

#181589 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.2% C 0.179 H 270.5°. Best body text is #FFFFFF at 13.93:1 contrast (WCAG AA passes).

Color values

HEX	#181589
RGB	rgb(24, 21, 137)
HSL	hsl(242, 73%, 31%)
HSV	hsv(242, 85%, 54%)
CMYK	cmyk(82.5%, 84.7%, 0%, 46.3%)
CIE-LAB	lab(18.08, 42.41, -61.85)
CIE-LCH	lch(18.08, 74.99, 304.44°)
OKLab	oklab(31.24% 0.0016 -0.179)
OKLCH	oklch(31.24% 0.179 270.5)
XYZ	xyz(5.1587, 2.5361, 23.8797)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181589 #868915

analogous

#154C89 #181589 #521589

triadic

#181589 #891815 #158918

tetradic

#181589 #89154C #868915 #158952

square

#181589 #89154C #868915 #158952

split-complementary

#181589 #895215 #4C8915

monochromatic

#05051F #0F0D54 #181589 #211DBE #3C38E0

Accessibility & contrast

On white

13.93

#181589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#181589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181589

13.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181589	#FFFFFF	#000000	##FFFFFF
##181589	1.00	13.93	1.51	13.93
#FFFFFF	13.93	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328C

Deuteranopia (green-blind)

#002687

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #181589;
/* rgb */ color: rgb(24, 21, 137);
/* oklch */ color: oklch(31.2% 0.179 270.5);

Tailwind

colors: {
  custom: {
    50: '#6d56ad',
    500: '#181589',
    950: '#000000',
  },
}

SCSS

$custom: #181589;
$custom-light: #6d56ad;
$custom-dark: #000000;

JSON

{
  "hex": "#181589",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 137
  },
  "hsl": {
    "h": 241.552,
    "s": 73.418,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3124,
    "c": 0.17903,
    "h": 270.5
  },
  "luminance": 0.02537
}

Semantic roles & 50–950 ramp

primary

#181589

secondary

#BABD3D

accent

#F038EB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #181589

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

Preview Lab → · Contrast checker → · Palette generator →