#12105C#12105C

#12105C is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.6% C 0.128 H 272.8°. Best body text is #FFFFFF at 16.74:1 contrast (WCAG AA passes).

Color values

HEX	#12105C
RGB	rgb(18, 16, 92)
HSL	hsl(242, 70%, 21%)
HSV	hsv(242, 83%, 36%)
CMYK	cmyk(80.4%, 82.6%, 0%, 63.9%)
CIE-LAB	lab(11.08, 29.29, -44.28)
CIE-LCH	lch(11.08, 53.09, 303.48°)
OKLab	oklab(24.61% 0.0063 -0.1281)
OKLCH	oklch(24.61% 0.128 272.8)
XYZ	xyz(2.3659, 1.2716, 10.2439)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12105C #5A5C10

analogous

#10345C #12105C #38105C

triadic

#12105C #5C1210 #105C12

tetradic

#12105C #5C1034 #5A5C10 #105C38

square

#12105C #5C1034 #5A5C10 #105C38

split-complementary

#12105C #5C3810 #345C10

monochromatic

#05051A #080728 #12105C #1C1990 #2622C4

Accessibility & contrast

On white

16.74

#12105C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#12105C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12105C

16.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12105C	#FFFFFF	#000000	##FFFFFF
##12105C	1.00	16.74	1.25	16.74
#FFFFFF	16.74	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00215E

Deuteranopia (green-blind)

#001A5B

Tritanopia (blue-blind)

#002735

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #12105c;
/* rgb */ color: rgb(18, 16, 92);
/* oklch */ color: oklch(24.6% 0.128 272.8);

Tailwind

colors: {
  custom: {
    50: '#5f4f8b',
    500: '#12105c',
    950: '#000000',
  },
}

SCSS

$custom: #12105c;
$custom-light: #5f4f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#12105c",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 92
  },
  "hsl": {
    "h": 241.579,
    "s": 70.37,
    "l": 21.176
  },
  "oklch": {
    "l": 0.24605,
    "c": 0.1283,
    "h": 272.8
  },
  "luminance": 0.01272
}

Semantic roles & 50–950 ramp

primary

#12105C

secondary

#939533

accent

#ED3BE8

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020C

muted

#7A787D

Preview Lab

Preview with #12105C

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

Preview Lab → · Contrast checker → · Palette generator →