#18105B#18105B

#18105B is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.9% C 0.125 H 277.0°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#18105B
RGB	rgb(24, 16, 91)
HSL	hsl(246, 70%, 21%)
HSV	hsv(246, 82%, 36%)
CMYK	cmyk(73.6%, 82.4%, 0%, 64.3%)
CIE-LAB	lab(11.41, 29.53, -43.03)
CIE-LCH	lch(11.41, 52.19, 304.46°)
OKLab	oklab(24.93% 0.0153 -0.1244)
OKLCH	oklch(24.93% 0.125 277)
XYZ	xyz(2.4497, 1.3199, 10.0212)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18105B #535B10

analogous

#102D5B #18105B #3D105B

triadic

#18105B #5B1810 #105B18

tetradic

#18105B #5B102D #535B10 #105B3D

square

#18105B #5B102D #535B10 #105B3D

split-complementary

#18105B #5B3D10 #2D5B10

monochromatic

#07051A #0A0727 #18105B #26198F #3322C3

Accessibility & contrast

On white

16.61

#18105B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#18105B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18105B

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18105B	#FFFFFF	#000000	##FFFFFF
##18105B	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00215D

Deuteranopia (green-blind)

#001B5A

Tritanopia (blue-blind)

#002635

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #18105b;
/* rgb */ color: rgb(24, 16, 91);
/* oklch */ color: oklch(24.9% 0.125 277.0);

Tailwind

colors: {
  custom: {
    50: '#61508a',
    500: '#18105b',
    950: '#000000',
  },
}

SCSS

$custom: #18105b;
$custom-light: #61508a;
$custom-dark: #000000;

JSON

{
  "hex": "#18105b",
  "rgb": {
    "r": 24,
    "g": 16,
    "b": 91
  },
  "hsl": {
    "h": 246.4,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.24927,
    "c": 0.12529,
    "h": 277
  },
  "luminance": 0.0132
}

Semantic roles & 50–950 ramp

primary

#18105B

secondary

#8A9433

accent

#ED3BDA

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #18105B

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

Preview Lab → · Contrast checker → · Palette generator →