#100943#100943

#100943 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.3% C 0.102 H 277.7°. Best body text is #FFFFFF at 18.39:1 contrast (WCAG AA passes).

Color values

HEX	#100943
RGB	rgb(16, 9, 67)
HSL	hsl(247, 76%, 15%)
HSV	hsv(247, 87%, 26%)
CMYK	cmyk(76.1%, 86.6%, 0%, 73.7%)
CIE-LAB	lab(6.42, 23.68, -34.72)
CIE-LCH	lch(6.42, 42.02, 304.29°)
OKLab	oklab(20.29% 0.0136 -0.1009)
OKLCH	oklch(20.29% 0.102 277.7)
XYZ	xyz(1.3242, 0.7107, 5.3765)
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

#100943 #3C4309

analogous

#091F43 #100943 #2D0943

triadic

#100943 #431009 #094310

tetradic

#100943 #43091F #3C4309 #09432D

square

#100943 #43091F #3C4309 #09432D

split-complementary

#100943 #432D09 #1F4309

monochromatic

#06041B #06041B #100943 #1D1079 #2A17AF

Accessibility & contrast

On white

18.39

#100943 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#100943 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100943

18.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100943	#FFFFFF	#000000	##FFFFFF
##100943	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)

#001745

Deuteranopia (green-blind)

#001242

Tritanopia (blue-blind)

#001A26

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #100943;
/* rgb */ color: rgb(16, 9, 67);
/* oklch */ color: oklch(20.3% 0.102 277.7);

Tailwind

colors: {
  custom: {
    50: '#574a78',
    500: '#100943',
    950: '#000000',
  },
}

SCSS

$custom: #100943;
$custom-light: #574a78;
$custom-dark: #000000;

JSON

{
  "hex": "#100943",
  "rgb": {
    "r": 16,
    "g": 9,
    "b": 67
  },
  "hsl": {
    "h": 247.241,
    "s": 76.316,
    "l": 14.902
  },
  "oklch": {
    "l": 0.20289,
    "c": 0.10181,
    "h": 277.7
  },
  "luminance": 0.00711
}

Semantic roles & 50–950 ramp

primary

#100943

secondary

#768127

accent

#F335DC

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040109

muted

#79777B

Preview Lab

Preview with #100943

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

Preview Lab → · Contrast checker → · Palette generator →