#100D44#100D44

#100D44 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.1% C 0.099 H 276.2°. Best body text is #FFFFFF at 18.06:1 contrast (WCAG AA passes).

Color values

HEX	#100D44
RGB	rgb(16, 13, 68)
HSL	hsl(243, 68%, 16%)
HSV	hsv(243, 81%, 27%)
CMYK	cmyk(76.5%, 80.9%, 0%, 73.3%)
CIE-LAB	lab(7.36, 21.88, -33.88)
CIE-LCH	lch(7.36, 40.33, 302.86°)
OKLab	oklab(21.06% 0.0106 -0.098)
OKLCH	oklch(21.06% 0.099 276.2)
XYZ	xyz(1.4007, 0.8152, 5.5513)
Luminance	0.0081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100D44 #41440D

analogous

#0D2544 #100D44 #2B0D44

triadic

#100D44 #44100D #0D4410

tetradic

#100D44 #440D25 #41440D #0D442B

square

#100D44 #440D25 #41440D #0D442B

split-complementary

#100D44 #442B0D #25440D

monochromatic

#06051A #06051A #100D44 #1C1777 #2821AB

Accessibility & contrast

On white

18.06

#100D44 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#100D44 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100D44

18.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100D44	#FFFFFF	#000000	##FFFFFF
##100D44	1.00	18.06	1.16	18.06
#FFFFFF	18.06	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001946

Deuteranopia (green-blind)

#001443

Tritanopia (blue-blind)

#001C27

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #100d44;
/* rgb */ color: rgb(16, 13, 68);
/* oklch */ color: oklch(21.1% 0.099 276.2);

Tailwind

colors: {
  custom: {
    50: '#574c79',
    500: '#100d44',
    950: '#000000',
  },
}

SCSS

$custom: #100d44;
$custom-light: #574c79;
$custom-dark: #000000;

JSON

{
  "hex": "#100d44",
  "rgb": {
    "r": 16,
    "g": 13,
    "b": 68
  },
  "hsl": {
    "h": 243.273,
    "s": 67.901,
    "l": 15.882
  },
  "oklch": {
    "l": 0.21064,
    "c": 0.09855,
    "h": 276.2
  },
  "luminance": 0.00815
}

Semantic roles & 50–950 ramp

primary

#100D44

secondary

#7B7F2D

accent

#EB3DE1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040109

muted

#79777B

Preview Lab

Preview with #100D44

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

Preview Lab → · Contrast checker → · Palette generator →