#18105A#18105A

#18105A is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.8% C 0.124 H 277.2°. Best body text is #FFFFFF at 16.66:1 contrast (WCAG AA passes).

Color values

HEX	#18105A
RGB	rgb(24, 16, 90)
HSL	hsl(246, 70%, 21%)
HSV	hsv(246, 82%, 35%)
CMYK	cmyk(73.3%, 82.2%, 0%, 64.7%)
CIE-LAB	lab(11.29, 29.18, -42.56)
CIE-LCH	lch(11.29, 51.60, 304.44°)
OKLab	oklab(24.81% 0.0155 -0.123)
OKLCH	oklch(24.81% 0.124 277.2)
XYZ	xyz(2.4068, 1.3027, 9.7955)
Luminance	0.0130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18105A #525A10

analogous

#102D5A #18105A #3D105A

triadic

#18105A #5A1810 #105A18

tetradic

#18105A #5A102D #525A10 #105A3D

square

#18105A #5A102D #525A10 #105A3D

split-complementary

#18105A #5A3D10 #2D5A10

monochromatic

#07051A #0A0726 #18105A #26198E #3422C2

Accessibility & contrast

On white

16.66

#18105A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#18105A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18105A

16.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18105A	#FFFFFF	#000000	##FFFFFF
##18105A	1.00	16.66	1.26	16.66
#FFFFFF	16.66	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00215C

Deuteranopia (green-blind)

#001B59

Tritanopia (blue-blind)

#002634

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #18105a;
/* rgb */ color: rgb(24, 16, 90);
/* oklch */ color: oklch(24.8% 0.124 277.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#18105a",
  "rgb": {
    "r": 24,
    "g": 16,
    "b": 90
  },
  "hsl": {
    "h": 246.486,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.24808,
    "c": 0.12395,
    "h": 277.2
  },
  "luminance": 0.01303
}

Semantic roles & 50–950 ramp

primary

#18105A

secondary

#899333

accent

#ED3BD9

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020C

muted

#7A787D

Preview Lab

Preview with #18105A

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

Preview Lab → · Contrast checker → · Palette generator →