#100C3D#100C3D

#100C3D is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.1% C 0.089 H 278.3°. Best body text is #FFFFFF at 18.39:1 contrast (WCAG AA passes).

Color values

HEX	#100C3D
RGB	rgb(16, 12, 61)
HSL	hsl(245, 67%, 14%)
HSV	hsv(245, 80%, 24%)
CMYK	cmyk(73.8%, 80.3%, 0%, 76.1%)
CIE-LAB	lab(6.41, 19.41, -30.45)
CIE-LCH	lch(6.41, 36.10, 302.51°)
OKLab	oklab(20.07% 0.0129 -0.0884)
OKLCH	oklch(20.07% 0.089 278.3)
XYZ	xyz(1.1872, 0.7099, 4.4884)
Luminance	0.0071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C3D #393D0C

analogous

#0C213D #100C3D #290C3D

triadic

#100C3D #3D100C #0C3D10

tetradic

#100C3D #3D0C21 #393D0C #0C3D29

square

#100C3D #3D0C21 #393D0C #0C3D29

split-complementary

#100C3D #3D290C #213D0C

monochromatic

#07051A #07051A #100C3D #1D1670 #2B20A3

Accessibility & contrast

On white

18.39

#100C3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#100C3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C3D

18.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C3D	#FFFFFF	#000000	##FFFFFF
##100C3D	1.00	18.39	1.14	18.39
#FFFFFF	18.39	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163E

Deuteranopia (green-blind)

#00123C

Tritanopia (blue-blind)

#001923

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #100c3d;
/* rgb */ color: rgb(16, 12, 61);
/* oklch */ color: oklch(20.1% 0.089 278.3);

Tailwind

colors: {
  custom: {
    50: '#554b73',
    500: '#100c3d',
    950: '#000000',
  },
}

SCSS

$custom: #100c3d;
$custom-light: #554b73;
$custom-dark: #000000;

JSON

{
  "hex": "#100c3d",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 61
  },
  "hsl": {
    "h": 244.898,
    "s": 67.123,
    "l": 14.314
  },
  "oklch": {
    "l": 0.20069,
    "c": 0.08938,
    "h": 278.3
  },
  "luminance": 0.0071
}

Semantic roles & 50–950 ramp

primary

#100C3D

secondary

#73792C

accent

#EA3EDC

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100C3D

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

Preview Lab → · Contrast checker → · Palette generator →