#18155B#18155B

#18155B is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.7% C 0.120 H 275.8°. Best body text is #FFFFFF at 16.19:1 contrast (WCAG AA passes).

Color values

HEX	#18155B
RGB	rgb(24, 21, 91)
HSL	hsl(243, 63%, 22%)
HSV	hsv(243, 77%, 36%)
CMYK	cmyk(73.6%, 76.9%, 0%, 64.3%)
CIE-LAB	lab(12.52, 26.43, -41.22)
CIE-LCH	lch(12.52, 48.96, 302.67°)
OKLab	oklab(25.71% 0.0121 -0.1191)
OKLCH	oklch(25.71% 0.12 275.8)
XYZ	xyz(2.5326, 1.4856, 10.0488)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18155B #585B15

analogous

#15355B #18155B #3B155B

triadic

#18155B #5B1815 #155B18

tetradic

#18155B #5B1535 #585B15 #155B3B

square

#18155B #5B1535 #585B15 #155B3B

split-complementary

#18155B #5B3B15 #355B15

monochromatic

#070619 #0B0A29 #18155B #25208D #322CBE

Accessibility & contrast

On white

16.19

#18155B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#18155B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18155B

16.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18155B	#FFFFFF	#000000	##FFFFFF
##18155B	1.00	16.19	1.30	16.19
#FFFFFF	16.19	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245D

Deuteranopia (green-blind)

#001D5A

Tritanopia (blue-blind)

#002936

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #18155b;
/* rgb */ color: rgb(24, 21, 91);
/* oklch */ color: oklch(25.7% 0.120 275.8);

Tailwind

colors: {
  custom: {
    50: '#60538a',
    500: '#18155b',
    950: '#000000',
  },
}

SCSS

$custom: #18155b;
$custom-light: #60538a;
$custom-dark: #000000;

JSON

{
  "hex": "#18155b",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 91
  },
  "hsl": {
    "h": 242.571,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.25707,
    "c": 0.11971,
    "h": 275.8
  },
  "luminance": 0.01486
}

Semantic roles & 50–950 ramp

primary

#18155B

secondary

#8F9239

accent

#E642DF

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020C

muted

#7A787D

Preview Lab

Preview with #18155B

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

Preview Lab → · Contrast checker → · Palette generator →