#100D27#100D27

#100D27 is a very dark, muted blue. Relative luminance 0.005; OKLCH L 18.0% C 0.052 H 285.2°. Best body text is #FFFFFF at 18.94:1 contrast (WCAG AA passes).

Color values

HEX	#100D27
RGB	rgb(16, 13, 39)
HSL	hsl(247, 50%, 10%)
HSV	hsv(247, 67%, 15%)
CMYK	cmyk(59%, 66.7%, 0%, 84.7%)
CIE-LAB	lab(4.92, 8.45, -16.58)
CIE-LCH	lch(4.92, 18.61, 296.99°)
OKLab	oklab(18.01% 0.0135 -0.0497)
OKLCH	oklch(18.01% 0.052 285.2)
XYZ	xyz(0.7237, 0.5445, 1.9860)
Luminance	0.0054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100D27 #24270D

analogous

#0D1727 #100D27 #1D0D27

triadic

#100D27 #27100D #0D2710

tetradic

#100D27 #270D17 #24270D #0D271D

square

#100D27 #270D17 #24270D #0D271D

split-complementary

#100D27 #271D0D #17270D

monochromatic

#090817 #090817 #100D27 #231C55 #362C83

Accessibility & contrast

On white

18.94

#100D27 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#100D27 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100D27

18.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100D27	#FFFFFF	#000000	##FFFFFF
##100D27	1.00	18.94	1.11	18.94
#FFFFFF	18.94	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#031128

Deuteranopia (green-blind)

#021026

Tritanopia (blue-blind)

#081318

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #100d27;
/* rgb */ color: rgb(16, 13, 39);
/* oklch */ color: oklch(18.0% 0.052 285.2);

Tailwind

colors: {
  custom: {
    50: '#4f4c61',
    500: '#100d27',
    950: '#000000',
  },
}

SCSS

$custom: #100d27;
$custom-light: #4f4c61;
$custom-dark: #000000;

JSON

{
  "hex": "#100d27",
  "rgb": {
    "r": 16,
    "g": 13,
    "b": 39
  },
  "hsl": {
    "h": 246.923,
    "s": 50,
    "l": 10.196
  },
  "oklch": {
    "l": 0.18013,
    "c": 0.05153,
    "h": 285.2
  },
  "luminance": 0.00544
}

Semantic roles & 50–950 ramp

primary

#100D27

secondary

#5B612F

accent

#DA4EC9

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#020105

muted

#787779

Preview Lab

Preview with #100D27

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

Preview Lab → · Contrast checker → · Palette generator →