#18108E#18108E

#18108E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.4% C 0.188 H 270.4°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#18108E
RGB	rgb(24, 16, 142)
HSL	hsl(244, 80%, 31%)
HSV	hsv(244, 89%, 56%)
CMYK	cmyk(83.1%, 88.7%, 0%, 44.3%)
CIE-LAB	lab(18.00, 46.19, -65.12)
CIE-LCH	lch(18.00, 79.84, 305.35°)
OKLab	oklab(31.37% 0.0012 -0.1884)
OKLCH	oklch(31.37% 0.188 270.4)
XYZ	xyz(5.4428, 2.5171, 25.7849)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18108E #868E10

analogous

#10478E #18108E #57108E

triadic

#18108E #8E1810 #108E18

tetradic

#18108E #8E1047 #868E10 #108E57

square

#18108E #8E1047 #868E10 #108E57

split-complementary

#18108E #8E5710 #478E10

monochromatic

#050420 #0F0A57 #18108E #2116C5 #3C31E8

Accessibility & contrast

On white

13.97

#18108E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#18108E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18108E

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18108E	#FFFFFF	#000000	##FFFFFF
##18108E	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003291

Deuteranopia (green-blind)

#00258C

Tritanopia (blue-blind)

#003B53

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #18108e;
/* rgb */ color: rgb(24, 16, 142);
/* oklch */ color: oklch(31.4% 0.188 270.4);

Tailwind

colors: {
  custom: {
    50: '#6f54b1',
    500: '#18108e',
    950: '#000000',
  },
}

SCSS

$custom: #18108e;
$custom-light: #6f54b1;
$custom-dark: #000000;

JSON

{
  "hex": "#18108e",
  "rgb": {
    "r": 24,
    "g": 16,
    "b": 142
  },
  "hsl": {
    "h": 243.81,
    "s": 79.747,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31368,
    "c": 0.18837,
    "h": 270.4
  },
  "luminance": 0.02518
}

Semantic roles & 50–950 ramp

primary

#18108E

secondary

#BAC337

accent

#F632EA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #18108E

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

Preview Lab → · Contrast checker → · Palette generator →