#100C42#100C42

#100C42 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.097 H 277.0°. Best body text is #FFFFFF at 18.21:1 contrast (WCAG AA passes).

Color values

HEX	#100C42
RGB	rgb(16, 12, 66)
HSL	hsl(244, 69%, 15%)
HSV	hsv(244, 82%, 26%)
CMYK	cmyk(75.8%, 81.8%, 0%, 74.1%)
CIE-LAB	lab(6.92, 21.63, -33.19)
CIE-LCH	lch(6.92, 39.61, 303.10°)
OKLab	oklab(20.65% 0.0118 -0.0961)
OKLCH	oklch(20.65% 0.097 277)
XYZ	xyz(1.3282, 0.7663, 5.2311)
Luminance	0.0077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C42 #3E420C

analogous

#0C2342 #100C42 #2B0C42

triadic

#100C42 #42100C #0C4210

tetradic

#100C42 #420C23 #3E420C #0C422B

square

#100C42 #420C23 #3E420C #0C422B

split-complementary

#100C42 #422B0C #23420C

monochromatic

#06051A #06051A #100C42 #1D1576 #291FAA

Accessibility & contrast

On white

18.21

#100C42 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#100C42 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C42

18.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C42	#FFFFFF	#000000	##FFFFFF
##100C42	1.00	18.21	1.15	18.21
#FFFFFF	18.21	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001844

Deuteranopia (green-blind)

#001341

Tritanopia (blue-blind)

#001B26

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #100c42;
/* rgb */ color: rgb(16, 12, 66);
/* oklch */ color: oklch(20.7% 0.097 277.0);

Tailwind

colors: {
  custom: {
    50: '#574b77',
    500: '#100c42',
    950: '#000000',
  },
}

SCSS

$custom: #100c42;
$custom-light: #574b77;
$custom-dark: #000000;

JSON

{
  "hex": "#100c42",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 66
  },
  "hsl": {
    "h": 244.444,
    "s": 69.231,
    "l": 15.294
  },
  "oklch": {
    "l": 0.20654,
    "c": 0.09684,
    "h": 277
  },
  "luminance": 0.00766
}

Semantic roles & 50–950 ramp

primary

#100C42

secondary

#787E2C

accent

#EC3CDF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #100C42

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

Preview Lab → · Contrast checker → · Palette generator →