#100C2A#100C2A

#100C2A is a very dark, muted blue. Relative luminance 0.005; OKLCH L 18.1% C 0.059 H 285.0°. Best body text is #FFFFFF at 18.95:1 contrast (WCAG AA passes).

Color values

HEX	#100C2A
RGB	rgb(16, 12, 42)
HSL	hsl(248, 56%, 11%)
HSV	hsv(248, 71%, 16%)
CMYK	cmyk(61.9%, 71.4%, 0%, 83.5%)
CIE-LAB	lab(4.88, 10.22, -18.92)
CIE-LCH	lch(4.88, 21.50, 298.39°)
OKLab	oklab(18.06% 0.0151 -0.0567)
OKLCH	oklch(18.06% 0.059 285)
XYZ	xyz(0.7630, 0.5402, 2.2541)
Luminance	0.0054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.29

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C2A #262A0C

analogous

#0C172A #100C2A #1F0C2A

triadic

#100C2A #2A100C #0C2A10

tetradic

#100C2A #2A0C17 #262A0C #0C2A1F

square

#100C2A #2A0C17 #262A0C #0C2A1F

split-complementary

#100C2A #2A1F0C #172A0C

monochromatic

#090718 #090718 #100C2A #221A5A #342789

Accessibility & contrast

On white

18.95

#100C2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100C2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C2A

18.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C2A	#FFFFFF	#000000	##FFFFFF
##100C2A	1.00	18.95	1.11	18.95
#FFFFFF	18.95	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00112B

Deuteranopia (green-blind)

#001029

Tritanopia (blue-blind)

#071319

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #100c2a;
/* rgb */ color: rgb(16, 12, 42);
/* oklch */ color: oklch(18.1% 0.059 285.0);

Tailwind

colors: {
  custom: {
    50: '#504c63',
    500: '#100c2a',
    950: '#000000',
  },
}

SCSS

$custom: #100c2a;
$custom-light: #504c63;
$custom-dark: #000000;

JSON

{
  "hex": "#100c2a",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 42
  },
  "hsl": {
    "h": 248,
    "s": 55.556,
    "l": 10.588
  },
  "oklch": {
    "l": 0.18057,
    "c": 0.05866,
    "h": 285
  },
  "luminance": 0.0054
}

Semantic roles & 50–950 ramp

primary

#100C2A

secondary

#5E652D

accent

#DF49CB

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#020105

muted

#787779

Preview Lab

Preview with #100C2A

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

Preview Lab → · Contrast checker → · Palette generator →