#18108D#18108D

#18108D is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.2% C 0.187 H 270.4°. Best body text is #FFFFFF at 14.02:1 contrast (WCAG AA passes).

Color values

HEX	#18108D
RGB	rgb(24, 16, 141)
HSL	hsl(244, 80%, 31%)
HSV	hsv(244, 89%, 55%)
CMYK	cmyk(83%, 88.7%, 0%, 44.7%)
CIE-LAB	lab(17.86, 45.89, -64.72)
CIE-LCH	lch(17.86, 79.34, 305.33°)
OKLab	oklab(31.24% 0.0015 -0.1872)
OKLCH	oklch(31.24% 0.187 270.4)
XYZ	xyz(5.3681, 2.4872, 25.3913)
Luminance	0.0249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18108D #858D10

analogous

#10468D #18108D #56108D

triadic

#18108D #8D1810 #108D18

tetradic

#18108D #8D1046 #858D10 #108D56

square

#18108D #8D1046 #858D10 #108D56

split-complementary

#18108D #8D5610 #468D10

monochromatic

#05041F #0F0A56 #18108D #2116C4 #3C30E7

Accessibility & contrast

On white

14.02

#18108D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#18108D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18108D

14.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18108D	#FFFFFF	#000000	##FFFFFF
##18108D	1.00	14.02	1.50	14.02
#FFFFFF	14.02	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003290

Deuteranopia (green-blind)

#00258B

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #18108d;
/* rgb */ color: rgb(24, 16, 141);
/* oklch */ color: oklch(31.2% 0.187 270.4);

Tailwind

colors: {
  custom: {
    50: '#6e54b0',
    500: '#18108d',
    950: '#000000',
  },
}

SCSS

$custom: #18108d;
$custom-light: #6e54b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18108d",
  "rgb": {
    "r": 24,
    "g": 16,
    "b": 141
  },
  "hsl": {
    "h": 243.84,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31238,
    "c": 0.18723,
    "h": 270.4
  },
  "luminance": 0.02488
}

Semantic roles & 50–950 ramp

primary

#18108D

secondary

#B9C237

accent

#F632E9

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #18108D

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

Preview Lab → · Contrast checker → · Palette generator →