#181563#181563

#181563 is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.6% C 0.131 H 274.6°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#181563
RGB	rgb(24, 21, 99)
HSL	hsl(242, 65%, 24%)
HSV	hsv(242, 79%, 39%)
CMYK	cmyk(75.8%, 78.8%, 0%, 61.2%)
CIE-LAB	lab(13.42, 29.37, -45.07)
CIE-LCH	lch(13.42, 53.80, 303.09°)
OKLab	oklab(26.62% 0.0104 -0.1303)
OKLCH	oklch(26.62% 0.131 274.6)
XYZ	xyz(2.8962, 1.6311, 11.9642)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181563 #606315

analogous

#153963 #181563 #3F1563

triadic

#181563 #631815 #156318

tetradic

#181563 #631539 #606315 #15633F

square

#181563 #631539 #606315 #15633F

split-complementary

#181563 #633F15 #396315

monochromatic

#060519 #0C0A31 #181563 #242095 #302AC8

Accessibility & contrast

On white

15.83

#181563 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#181563 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181563

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181563	#FFFFFF	#000000	##FFFFFF
##181563	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002665

Deuteranopia (green-blind)

#001F62

Tritanopia (blue-blind)

#002C3B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #181563;
/* rgb */ color: rgb(24, 21, 99);
/* oklch */ color: oklch(26.6% 0.131 274.6);

Tailwind

colors: {
  custom: {
    50: '#625390',
    500: '#181563',
    950: '#000000',
  },
}

SCSS

$custom: #181563;
$custom-light: #625390;
$custom-dark: #000000;

JSON

{
  "hex": "#181563",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 99
  },
  "hsl": {
    "h": 242.308,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.26619,
    "c": 0.13077,
    "h": 274.6
  },
  "luminance": 0.01631
}

Semantic roles & 50–950 ramp

primary

#181563

secondary

#969A3A

accent

#E840E2

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #181563

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

Preview Lab → · Contrast checker → · Palette generator →