#12102D#12102D

#12102D is a very dark, muted blue. Relative luminance 0.007; OKLCH L 19.5% C 0.056 H 282.9°. Best body text is #FFFFFF at 18.46:1 contrast (WCAG AA passes).

Color values

HEX	#12102D
RGB	rgb(18, 16, 45)
HSL	hsl(244, 48%, 12%)
HSV	hsv(244, 64%, 18%)
CMYK	cmyk(60%, 64.4%, 0%, 82.4%)
CIE-LAB	lab(6.22, 10.33, -19.04)
CIE-LCH	lch(6.22, 21.66, 298.48°)
OKLab	oklab(19.47% 0.0126 -0.055)
OKLCH	oklch(19.47% 0.056 282.9)
XYZ	xyz(0.9083, 0.6886, 2.5672)
Luminance	0.0069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.46

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12102D #2B2D10

analogous

#101D2D #12102D #21102D

triadic

#12102D #2D1210 #102D12

tetradic

#12102D #2D101D #2B2D10 #102D21

square

#12102D #2D101D #2B2D10 #102D21

split-complementary

#12102D #2D2110 #1D2D10

monochromatic

#090817 #090817 #12102D #24205A #363087

Accessibility & contrast

On white

18.46

#12102D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#12102D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12102D

18.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12102D	#FFFFFF	#000000	##FFFFFF
##12102D	1.00	18.46	1.14	18.46
#FFFFFF	18.46	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03152E

Deuteranopia (green-blind)

#02132C

Tritanopia (blue-blind)

#08161C

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #12102d;
/* rgb */ color: rgb(18, 16, 45);
/* oklch */ color: oklch(19.5% 0.056 282.9);

Tailwind

colors: {
  custom: {
    50: '#524e66',
    500: '#12102d',
    950: '#000000',
  },
}

SCSS

$custom: #12102d;
$custom-light: #524e66;
$custom-dark: #000000;

JSON

{
  "hex": "#12102d",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 45
  },
  "hsl": {
    "h": 244.138,
    "s": 47.541,
    "l": 11.961
  },
  "oklch": {
    "l": 0.19466,
    "c": 0.05646,
    "h": 282.9
  },
  "luminance": 0.00689
}

Semantic roles & 50–950 ramp

primary

#12102D

secondary

#626633

accent

#D751CE

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #12102D

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

Preview Lab → · Contrast checker → · Palette generator →