#101623#101623

#101623 is a very dark, muted blue. Relative luminance 0.008; OKLCH L 20.1% C 0.028 H 265.0°. Best body text is #FFFFFF at 18.09:1 contrast (WCAG AA passes).

Color values

HEX	#101623
RGB	rgb(16, 22, 35)
HSL	hsl(221, 37%, 10%)
HSV	hsv(221, 54%, 14%)
CMYK	cmyk(54.3%, 37.1%, 0%, 86.3%)
CIE-LAB	lab(7.27, 1.58, -9.89)
CIE-LCH	lch(7.27, 10.01, 279.06°)
OKLab	oklab(20.1% -0.0024 -0.0277)
OKLCH	oklch(20.1% 0.028 265)
XYZ	xyz(0.8039, 0.8053, 1.7029)
Luminance	0.0080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101623 #231D10

analogous

#101F23 #101623 #141023

triadic

#101623 #231016 #162310

tetradic

#101623 #23101F #231D10 #102314

square

#101623 #23101F #231D10 #102314

split-complementary

#101623 #231410 #1F2310

monochromatic

#0A0D15 #0A0D15 #101623 #23304D #364B77

Accessibility & contrast

On white

18.09

#101623 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#101623 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101623

18.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101623	#FFFFFF	#000000	##FFFFFF
##101623	1.00	18.09	1.16	18.09
#FFFFFF	18.09	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#111724

Deuteranopia (green-blind)

#101523

Tritanopia (blue-blind)

#0A191B

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #101623;
/* rgb */ color: rgb(16, 22, 35);
/* oklch */ color: oklch(20.1% 0.028 265.0);

Tailwind

colors: {
  custom: {
    50: '#4f525d',
    500: '#101623',
    950: '#000000',
  },
}

SCSS

$custom: #101623;
$custom-light: #4f525d;
$custom-dark: #000000;

JSON

{
  "hex": "#101623",
  "rgb": {
    "r": 16,
    "g": 22,
    "b": 35
  },
  "hsl": {
    "h": 221.053,
    "s": 37.255,
    "l": 10
  },
  "oklch": {
    "l": 0.20097,
    "c": 0.02782,
    "h": 265
  },
  "luminance": 0.00805
}

Semantic roles & 50–950 ramp

primary

#101623

secondary

#5A4E35

accent

#A95BCD

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#020204

muted

#787879

Preview Lab

Preview with #101623

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

Preview Lab → · Contrast checker → · Palette generator →