#12105D#12105D

#12105D is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.7% C 0.130 H 272.7°. Best body text is #FFFFFF at 16.70:1 contrast (WCAG AA passes).

Color values

HEX	#12105D
RGB	rgb(18, 16, 93)
HSL	hsl(242, 71%, 21%)
HSV	hsv(242, 83%, 36%)
CMYK	cmyk(80.6%, 82.8%, 0%, 63.5%)
CIE-LAB	lab(11.20, 29.65, -44.75)
CIE-LCH	lch(11.20, 53.68, 303.53°)
OKLab	oklab(24.73% 0.0061 -0.1295)
OKLCH	oklch(24.73% 0.13 272.7)
XYZ	xyz(2.4099, 1.2892, 10.4756)
Luminance	0.0129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12105D #5B5D10

analogous

#10355D #12105D #39105D

triadic

#12105D #5D1210 #105D12

tetradic

#12105D #5D1035 #5B5D10 #105D39

square

#12105D #5D1035 #5B5D10 #105D39

split-complementary

#12105D #5D3910 #355D10

monochromatic

#05041A #080729 #12105D #1C1991 #2622C5

Accessibility & contrast

On white

16.70

#12105D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#12105D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12105D

16.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12105D	#FFFFFF	#000000	##FFFFFF
##12105D	1.00	16.70	1.26	16.70
#FFFFFF	16.70	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00225F

Deuteranopia (green-blind)

#001A5C

Tritanopia (blue-blind)

#002736

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #12105d;
/* rgb */ color: rgb(18, 16, 93);
/* oklch */ color: oklch(24.7% 0.130 272.7);

Tailwind

colors: {
  custom: {
    50: '#5f508c',
    500: '#12105d',
    950: '#000000',
  },
}

SCSS

$custom: #12105d;
$custom-light: #5f508c;
$custom-dark: #000000;

JSON

{
  "hex": "#12105d",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 93
  },
  "hsl": {
    "h": 241.558,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.24729,
    "c": 0.12964,
    "h": 272.7
  },
  "luminance": 0.01289
}

Semantic roles & 50–950 ramp

primary

#12105D

secondary

#939633

accent

#ED3AE9

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020C

muted

#7A787D

Preview Lab

Preview with #12105D

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

Preview Lab → · Contrast checker → · Palette generator →