#100C47#100C47

#100C47 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.3% C 0.104 H 275.9°. Best body text is #FFFFFF at 18.02:1 contrast (WCAG AA passes).

Color values

HEX	#100C47
RGB	rgb(16, 12, 71)
HSL	hsl(244, 71%, 16%)
HSV	hsv(244, 83%, 28%)
CMYK	cmyk(77.5%, 83.1%, 0%, 72.2%)
CIE-LAB	lab(7.48, 23.72, -35.80)
CIE-LCH	lch(7.48, 42.95, 303.52°)
OKLab	oklab(21.26% 0.0106 -0.1035)
OKLCH	oklch(21.26% 0.104 275.9)
XYZ	xyz(1.4821, 0.8279, 6.0417)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C47 #43470C

analogous

#0C2647 #100C47 #2E0C47

triadic

#100C47 #47100C #0C4710

tetradic

#100C47 #470C26 #43470C #0C472E

square

#100C47 #470C26 #43470C #0C472E

split-complementary

#100C47 #472E0C #26470C

monochromatic

#06041A #06041A #100C47 #1C157B #281EB0

Accessibility & contrast

On white

18.02

#100C47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#100C47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C47

18.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C47	#FFFFFF	#000000	##FFFFFF
##100C47	1.00	18.02	1.17	18.02
#FFFFFF	18.02	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001949

Deuteranopia (green-blind)

#001446

Tritanopia (blue-blind)

#001D29

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #100c47;
/* rgb */ color: rgb(16, 12, 71);
/* oklch */ color: oklch(21.3% 0.104 275.9);

Tailwind

colors: {
  custom: {
    50: '#584b7b',
    500: '#100c47',
    950: '#000000',
  },
}

SCSS

$custom: #100c47;
$custom-light: #584b7b;
$custom-dark: #000000;

JSON

{
  "hex": "#100c47",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 71
  },
  "hsl": {
    "h": 244.068,
    "s": 71.084,
    "l": 16.275
  },
  "oklch": {
    "l": 0.21256,
    "c": 0.10409,
    "h": 275.9
  },
  "luminance": 0.00828
}

Semantic roles & 50–950 ramp

primary

#100C47

secondary

#7D832C

accent

#EE3AE2

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040109

muted

#79777B

Preview Lab

Preview with #100C47

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

Preview Lab → · Contrast checker → · Palette generator →