#101331#101331

#101331 is a very dark, muted blue. Relative luminance 0.008; OKLCH L 20.4% C 0.059 H 275.6°. Best body text is #FFFFFF at 18.11:1 contrast (WCAG AA passes).

Color values

HEX	#101331
RGB	rgb(16, 19, 49)
HSL	hsl(235, 51%, 13%)
HSV	hsv(235, 67%, 19%)
CMYK	cmyk(67.3%, 61.2%, 0%, 80.8%)
CIE-LAB	lab(7.20, 9.57, -20.44)
CIE-LCH	lch(7.20, 22.57, 295.09°)
OKLab	oklab(20.36% 0.0057 -0.0586)
OKLCH	oklch(20.36% 0.059 275.6)
XYZ	xyz(1.0008, 0.7976, 3.0063)
Luminance	0.0080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.99

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101331 #312E10

analogous

#102331 #101331 #1D1031

triadic

#101331 #311013 #133110

tetradic

#101331 #311023 #312E10 #10311D

square

#101331 #311023 #312E10 #10311D

split-complementary

#101331 #311D10 #233110

monochromatic

#080917 #080917 #101331 #1F255F #2E378D

Accessibility & contrast

On white

18.11

#101331 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#101331 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101331

18.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101331	#FFFFFF	#000000	##FFFFFF
##101331	1.00	18.11	1.16	18.11
#FFFFFF	18.11	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041732

Deuteranopia (green-blind)

#021530

Tritanopia (blue-blind)

#021A1F

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #101331;
/* rgb */ color: rgb(16, 19, 49);
/* oklch */ color: oklch(20.4% 0.059 275.6);

Tailwind

colors: {
  custom: {
    50: '#525069',
    500: '#101331',
    950: '#000000',
  },
}

SCSS

$custom: #101331;
$custom-light: #525069;
$custom-dark: #000000;

JSON

{
  "hex": "#101331",
  "rgb": {
    "r": 16,
    "g": 19,
    "b": 49
  },
  "hsl": {
    "h": 234.545,
    "s": 50.769,
    "l": 12.745
  },
  "oklch": {
    "l": 0.20355,
    "c": 0.05884,
    "h": 275.6
  },
  "luminance": 0.00798
}

Semantic roles & 50–950 ramp

primary

#101331

secondary

#6A6533

accent

#CD4EDA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #101331

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

Preview Lab → · Contrast checker → · Palette generator →