#10101A#10101A

#10101A is a very dark, muted blue. Relative luminance 0.006; OKLCH L 17.8% C 0.021 H 284.1°. Best body text is #FFFFFF at 18.90:1 contrast (WCAG AA passes).

Color values

HEX	#10101A
RGB	rgb(16, 16, 26)
HSL	hsl(240, 24%, 8%)
HSV	hsv(240, 38%, 10%)
CMYK	cmyk(38.5%, 38.5%, 0%, 89.8%)
CIE-LAB	lab(5.02, 2.36, -6.38)
CIE-LCH	lch(5.02, 6.80, 290.29°)
OKLab	oklab(17.83% 0.005 -0.0199)
OKLCH	oklch(17.83% 0.021 284.1)
XYZ	xyz(0.5854, 0.5553, 1.0534)
Luminance	0.0056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10101A #1A1A10

analogous

#10151A #10101A #15101A

triadic

#10101A #1A1010 #101A10

tetradic

#10101A #1A1015 #1A1A10 #101A15

square

#10101A #1A1015 #1A1A10 #101A15

split-complementary

#10101A #1A1510 #151A10

monochromatic

#0C0C13 #0C0C13 #10101A #272740 #3F3F66

Accessibility & contrast

On white

18.90

#10101A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#10101A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10101A

18.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10101A	#FFFFFF	#000000	##FFFFFF
##10101A	1.00	18.90	1.11	18.90
#FFFFFF	18.90	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D111A

Deuteranopia (green-blind)

#0D111A

Tritanopia (blue-blind)

#0E1213

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #10101a;
/* rgb */ color: rgb(16, 16, 26);
/* oklch */ color: oklch(17.8% 0.021 284.1);

Tailwind

colors: {
  custom: {
    50: '#4e4e56',
    500: '#10101a',
    950: '#000000',
  },
}

SCSS

$custom: #10101a;
$custom-light: #4e4e56;
$custom-dark: #000000;

JSON

{
  "hex": "#10101a",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 26
  },
  "hsl": {
    "h": 240,
    "s": 23.81,
    "l": 8.235
  },
  "oklch": {
    "l": 0.17825,
    "c": 0.0205,
    "h": 284.1
  },
  "luminance": 0.00555
}

Semantic roles & 50–950 ramp

primary

#10101A

secondary

#4E4E38

accent

#C068C0

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010103

muted

#777778

Preview Lab

Preview with #10101A

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

Preview Lab → · Contrast checker → · Palette generator →