#12102C#12102C

#12102C is a very dark, muted blue. Relative luminance 0.007; OKLCH L 19.4% C 0.055 H 283.3°. Best body text is #FFFFFF at 18.48:1 contrast (WCAG AA passes).

Color values

HEX	#12102C
RGB	rgb(18, 16, 44)
HSL	hsl(244, 47%, 12%)
HSV	hsv(244, 64%, 17%)
CMYK	cmyk(59.1%, 63.6%, 0%, 82.7%)
CIE-LAB	lab(6.15, 9.88, -18.40)
CIE-LCH	lch(6.15, 20.88, 298.22°)
OKLab	oklab(19.38% 0.0125 -0.0532)
OKLCH	oklch(19.38% 0.055 283.3)
XYZ	xyz(0.8892, 0.6810, 2.4670)
Luminance	0.0068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.79

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12102C #2A2C10

analogous

#101C2C #12102C #20102C

triadic

#12102C #2C1210 #102C12

tetradic

#12102C #2C101C #2A2C10 #102C20

square

#12102C #2C101C #2A2C10 #102C20

split-complementary

#12102C #2C2010 #1C2C10

monochromatic

#090816 #090816 #12102C #242059 #373186

Accessibility & contrast

On white

18.48

#12102C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#12102C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12102C

18.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12102C	#FFFFFF	#000000	##FFFFFF
##12102C	1.00	18.48	1.14	18.48
#FFFFFF	18.48	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04152D

Deuteranopia (green-blind)

#03132B

Tritanopia (blue-blind)

#09161B

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #12102c;
/* rgb */ color: rgb(18, 16, 44);
/* oklch */ color: oklch(19.4% 0.055 283.3);

Tailwind

colors: {
  custom: {
    50: '#524e65',
    500: '#12102c',
    950: '#000000',
  },
}

SCSS

$custom: #12102c;
$custom-light: #524e65;
$custom-dark: #000000;

JSON

{
  "hex": "#12102c",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 44
  },
  "hsl": {
    "h": 244.286,
    "s": 46.667,
    "l": 11.765
  },
  "oklch": {
    "l": 0.19379,
    "c": 0.05468,
    "h": 283.3
  },
  "luminance": 0.00681
}

Semantic roles & 50–950 ramp

primary

#12102C

secondary

#616533

accent

#D651CD

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020105

muted

#78777A

Preview Lab

Preview with #12102C

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

Preview Lab → · Contrast checker → · Palette generator →