#101B37#101B37

#101B37 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 22.9% C 0.057 H 266.0°. Best body text is #FFFFFF at 17.02:1 contrast (WCAG AA passes).

Color values

HEX	#101B37
RGB	rgb(16, 27, 55)
HSL	hsl(223, 55%, 14%)
HSV	hsv(223, 71%, 22%)
CMYK	cmyk(70.9%, 50.9%, 0%, 78.4%)
CIE-LAB	lab(10.33, 5.92, -19.79)
CIE-LCH	lch(10.33, 20.66, 286.65°)
OKLab	oklab(22.91% -0.004 -0.0564)
OKLCH	oklch(22.91% 0.057 266)
XYZ	xyz(1.2950, 1.1698, 3.7712)
Luminance	0.0117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B37 #372C10

analogous

#102F37 #101B37 #191037

triadic

#101B37 #37101B #1B3710

tetradic

#101B37 #37102F #372C10 #103719

square

#101B37 #37102F #372C10 #103719

split-complementary

#101B37 #371910 #2F3710

monochromatic

#070C18 #070C18 #101B37 #1E3266 #2C4A96

Accessibility & contrast

On white

17.02

#101B37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#101B37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B37

17.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B37	#FFFFFF	#000000	##FFFFFF
##101B37	1.00	17.02	1.23	17.02
#FFFFFF	17.02	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E1E38

Deuteranopia (green-blind)

#091A36

Tritanopia (blue-blind)

#002126

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #101b37;
/* rgb */ color: rgb(16, 27, 55);
/* oklch */ color: oklch(22.9% 0.057 266.0);

Tailwind

colors: {
  custom: {
    50: '#53566e',
    500: '#101b37',
    950: '#000000',
  },
}

SCSS

$custom: #101b37;
$custom-light: #53566e;
$custom-dark: #000000;

JSON

{
  "hex": "#101b37",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 55
  },
  "hsl": {
    "h": 223.077,
    "s": 54.93,
    "l": 13.922
  },
  "oklch": {
    "l": 0.22905,
    "c": 0.05654,
    "h": 266
  },
  "luminance": 0.0117
}

Semantic roles & 50–950 ramp

primary

#101B37

secondary

#715F32

accent

#B44ADE

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020307

muted

#78787A

Preview Lab

Preview with #101B37

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

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