#18108C#18108C

#18108C is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.1% C 0.186 H 270.5°. Best body text is #FFFFFF at 14.08:1 contrast (WCAG AA passes).

Color values

HEX	#18108C
RGB	rgb(24, 16, 140)
HSL	hsl(244, 79%, 31%)
HSV	hsv(244, 89%, 55%)
CMYK	cmyk(82.9%, 88.6%, 0%, 45.1%)
CIE-LAB	lab(17.73, 45.58, -64.32)
CIE-LCH	lch(17.73, 78.83, 305.32°)
OKLab	oklab(31.11% 0.0017 -0.1861)
OKLCH	oklch(31.11% 0.186 270.5)
XYZ	xyz(5.2940, 2.4576, 25.0012)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18108C #848C10

analogous

#10468C #18108C #56108C

triadic

#18108C #8C1810 #108C18

tetradic

#18108C #8C1046 #848C10 #108C56

square

#18108C #8C1046 #848C10 #108C56

split-complementary

#18108C #8C5610 #468C10

monochromatic

#05031E #0F0A55 #18108C #2116C3 #3B2FE7

Accessibility & contrast

On white

14.08

#18108C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#18108C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18108C

14.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18108C	#FFFFFF	#000000	##FFFFFF
##18108C	1.00	14.08	1.49	14.08
#FFFFFF	14.08	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00318F

Deuteranopia (green-blind)

#00258A

Tritanopia (blue-blind)

#003A51

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #18108c;
/* rgb */ color: rgb(24, 16, 140);
/* oklch */ color: oklch(31.1% 0.186 270.5);

Tailwind

colors: {
  custom: {
    50: '#6e54af',
    500: '#18108c',
    950: '#000000',
  },
}

SCSS

$custom: #18108c;
$custom-light: #6e54af;
$custom-dark: #000000;

JSON

{
  "hex": "#18108c",
  "rgb": {
    "r": 24,
    "g": 16,
    "b": 140
  },
  "hsl": {
    "h": 243.871,
    "s": 79.487,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31107,
    "c": 0.18607,
    "h": 270.5
  },
  "luminance": 0.02458
}

Semantic roles & 50–950 ramp

primary

#18108C

secondary

#B8C137

accent

#F632E9

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #18108C

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

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