#100B3D#100B3D

#100B3D is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.9% C 0.091 H 278.7°. Best body text is #FFFFFF at 18.47:1 contrast (WCAG AA passes).

Color values

HEX	#100B3D
RGB	rgb(16, 11, 61)
HSL	hsl(246, 69%, 14%)
HSV	hsv(246, 82%, 24%)
CMYK	cmyk(73.8%, 82%, 0%, 76.1%)
CIE-LAB	lab(6.20, 19.94, -30.79)
CIE-LCH	lch(6.20, 36.69, 302.92°)
OKLab	oklab(19.89% 0.0137 -0.0896)
OKLCH	oklch(19.89% 0.091 278.7)
XYZ	xyz(1.1754, 0.6863, 4.4845)
Luminance	0.0069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B3D #383D0B

analogous

#0B1F3D #100B3D #290B3D

triadic

#100B3D #3D100B #0B3D10

tetradic

#100B3D #3D0B1F #383D0B #0B3D29

square

#100B3D #3D0B1F #383D0B #0B3D29

split-complementary

#100B3D #3D290B #1F3D0B

monochromatic

#07051A #07051A #100B3D #1E1471 #2B1EA5

Accessibility & contrast

On white

18.47

#100B3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#100B3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B3D

18.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B3D	#FFFFFF	#000000	##FFFFFF
##100B3D	1.00	18.47	1.14	18.47
#FFFFFF	18.47	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163E

Deuteranopia (green-blind)

#00123C

Tritanopia (blue-blind)

#001923

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #100b3d;
/* rgb */ color: rgb(16, 11, 61);
/* oklch */ color: oklch(19.9% 0.091 278.7);

Tailwind

colors: {
  custom: {
    50: '#554b73',
    500: '#100b3d',
    950: '#000000',
  },
}

SCSS

$custom: #100b3d;
$custom-light: #554b73;
$custom-dark: #000000;

JSON

{
  "hex": "#100b3d",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 61
  },
  "hsl": {
    "h": 246,
    "s": 69.444,
    "l": 14.118
  },
  "oklch": {
    "l": 0.1989,
    "c": 0.0907,
    "h": 278.7
  },
  "luminance": 0.00686
}

Semantic roles & 50–950 ramp

primary

#100B3D

secondary

#727A2A

accent

#EC3CDB

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100B3D

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

Preview Lab → · Contrast checker → · Palette generator →