#100C3C#100C3C

#100C3C is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.0% C 0.088 H 278.6°. Best body text is #FFFFFF at 18.42:1 contrast (WCAG AA passes).

Color values

HEX	#100C3C
RGB	rgb(16, 12, 60)
HSL	hsl(245, 67%, 14%)
HSV	hsv(245, 80%, 24%)
CMYK	cmyk(73.3%, 80%, 0%, 76.5%)
CIE-LAB	lab(6.32, 18.94, -29.88)
CIE-LCH	lch(6.32, 35.38, 302.37°)
OKLab	oklab(19.95% 0.0131 -0.0869)
OKLCH	oklch(19.95% 0.088 278.6)
XYZ	xyz(1.1605, 0.6993, 4.3479)
Luminance	0.0070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C3C #383C0C

analogous

#0C203C #100C3C #280C3C

triadic

#100C3C #3C100C #0C3C10

tetradic

#100C3C #3C0C20 #383C0C #0C3C28

square

#100C3C #3C0C20 #383C0C #0C3C28

split-complementary

#100C3C #3C280C #203C0C

monochromatic

#07051A #07051A #100C3C #1E166F #2B20A2

Accessibility & contrast

On white

18.42

#100C3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#100C3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C3C

18.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C3C	#FFFFFF	#000000	##FFFFFF
##100C3C	1.00	18.42	1.14	18.42
#FFFFFF	18.42	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163D

Deuteranopia (green-blind)

#00123B

Tritanopia (blue-blind)

#001922

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #100c3c;
/* rgb */ color: rgb(16, 12, 60);
/* oklch */ color: oklch(20.0% 0.088 278.6);

Tailwind

colors: {
  custom: {
    50: '#554b72',
    500: '#100c3c',
    950: '#000000',
  },
}

SCSS

$custom: #100c3c;
$custom-light: #554b72;
$custom-dark: #000000;

JSON

{
  "hex": "#100c3c",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 60
  },
  "hsl": {
    "h": 245,
    "s": 66.667,
    "l": 14.118
  },
  "oklch": {
    "l": 0.19954,
    "c": 0.08787,
    "h": 278.6
  },
  "luminance": 0.00699
}

Semantic roles & 50–950 ramp

primary

#100C3C

secondary

#72782C

accent

#EA3EDB

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100C3C

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

Preview Lab → · Contrast checker → · Palette generator →