#100B36#100B36

#100B36 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 19.1% C 0.080 H 280.9°. Best body text is #FFFFFF at 18.70:1 contrast (WCAG AA passes).

Color values

HEX	#100B36
RGB	rgb(16, 11, 54)
HSL	hsl(247, 66%, 13%)
HSV	hsv(247, 80%, 21%)
CMYK	cmyk(70.4%, 79.6%, 0%, 78.8%)
CIE-LAB	lab(5.56, 16.58, -26.75)
CIE-LCH	lch(5.56, 31.47, 301.80°)
OKLab	oklab(19.09% 0.0152 -0.0785)
OKLCH	oklch(19.09% 0.08 280.9)
XYZ	xyz(0.9990, 0.6158, 3.5555)
Luminance	0.0062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100B36 #31360B

analogous

#0B1B36 #100B36 #250B36

triadic

#100B36 #36100B #0B3610

tetradic

#100B36 #360B1B #31360B #0B3625

square

#100B36 #360B1B #31360B #0B3625

split-complementary

#100B36 #36250B #1B360B

monochromatic

#080519 #080519 #100B36 #1F1569 #2E209C

Accessibility & contrast

On white

18.70

#100B36 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#100B36 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100B36

18.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100B36	#FFFFFF	#000000	##FFFFFF
##100B36	1.00	18.70	1.12	18.70
#FFFFFF	18.70	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001437

Deuteranopia (green-blind)

#001135

Tritanopia (blue-blind)

#00161F

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #100b36;
/* rgb */ color: rgb(16, 11, 54);
/* oklch */ color: oklch(19.1% 0.080 280.9);

Tailwind

colors: {
  custom: {
    50: '#534b6d',
    500: '#100b36',
    950: '#000000',
  },
}

SCSS

$custom: #100b36;
$custom-light: #534b6d;
$custom-dark: #000000;

JSON

{
  "hex": "#100b36",
  "rgb": {
    "r": 16,
    "g": 11,
    "b": 54
  },
  "hsl": {
    "h": 246.977,
    "s": 66.154,
    "l": 12.745
  },
  "oklch": {
    "l": 0.19091,
    "c": 0.08,
    "h": 280.9
  },
  "luminance": 0.00616
}

Semantic roles & 50–950 ramp

primary

#100B36

secondary

#6A732A

accent

#E93FD5

background

#F4F4F6

surface

#E8E7EB

border

#C4C3C6

text

#030107

muted

#78777A

Preview Lab

Preview with #100B36

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

Preview Lab → · Contrast checker → · Palette generator →