#232121#232121

#232121 is a very dark, near-neutral grey. Relative luminance 0.016; OKLCH L 25.0% C 0.003 H 17.3°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX	#232121
RGB	rgb(35, 33, 33)
HSL	hsl(0, 3%, 13%)
HSV	hsv(0, 6%, 14%)
CMYK	cmyk(0%, 5.7%, 5.7%, 86.3%)
CIE-LAB	lab(12.95, 0.94, 0.34)
CIE-LCH	lch(12.95, 1.00, 19.72°)
OKLab	oklab(25% 0.0029 0.0009)
OKLCH	oklch(25% 0.003 17.3)
XYZ	xyz(1.5115, 1.5549, 1.6590)
Luminance	0.0155 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#232121 #212323

analogous

#232122 #232121 #232221

triadic

#232121 #212321 #212123

tetradic

#232121 #222321 #212323 #222123

square

#232121 #222321 #212323 #222123

split-complementary

#232121 #212322 #212223

monochromatic

#100F0F #100F0F #232121 #423F3F #625C5C

Accessibility & contrast

On white

16.02

#232121 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#232121 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #232121

16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##232121	#FFFFFF	#000000	##FFFFFF
##232121	1.00	16.02	1.31	16.02
#FFFFFF	16.02	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212121

Deuteranopia (green-blind)

#222221

Tritanopia (blue-blind)

#232121

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #232121;
/* rgb */ color: rgb(35, 33, 33);
/* oklch */ color: oklch(25.0% 0.003 17.3);

Tailwind

colors: {
  custom: {
    50: '#5d5c5c',
    500: '#232121',
    950: '#000000',
  },
}

SCSS

$custom: #232121;
$custom-light: #5d5c5c;
$custom-dark: #000000;

JSON

{
  "hex": "#232121",
  "rgb": {
    "r": 35,
    "g": 33,
    "b": 33
  },
  "hsl": {
    "h": 0,
    "s": 2.941,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24995,
    "c": 0.00303,
    "h": 17.3
  },
  "luminance": 0.01555
}

Semantic roles & 50–950 ramp

primary

#232121

secondary

#4E5252

accent

#ACAC7C

background

#F5F5F5

surface

#E9E9E9

border

#C5C5C5

text

#040404

muted

#797979

Preview Lab

Preview with #232121

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

Preview Lab → · Contrast checker → · Palette generator →