#42403C#42403C

#42403C is a dark, near-neutral grey. Relative luminance 0.052; OKLCH L 37.2% C 0.007 H 84.6°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#42403C
RGB	rgb(66, 64, 60)
HSL	hsl(40, 5%, 25%)
HSV	hsv(40, 9%, 26%)
CMYK	cmyk(0%, 3%, 9.1%, 74.1%)
CIE-LAB	lab(27.16, -0.01, 2.75)
CIE-LCH	lch(27.16, 2.75, 90.12°)
OKLab	oklab(37.21% 0.0007 0.0072)
OKLCH	oklch(37.21% 0.007 84.6)
XYZ	xyz(4.8957, 5.1513, 5.0105)
Luminance	0.0515 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42403C #3C3E42

analogous

#423D3C #42403C #41423C

triadic

#42403C #3C4240 #403C42

tetradic

#42403C #3C423D #3C3E42 #423C41

square

#42403C #3C423D #3C3E42 #423C41

split-complementary

#42403C #3C4142 #3D3C42

monochromatic

#10100F #22211F #42403C #625F59 #827E76

Accessibility & contrast

On white

10.34

#42403C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#42403C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42403C

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42403C	#FFFFFF	#000000	##FFFFFF
##42403C	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41403C

Deuteranopia (green-blind)

#42403C

Tritanopia (blue-blind)

#433F3F

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #42403c;
/* rgb */ color: rgb(66, 64, 60);
/* oklch */ color: oklch(37.2% 0.007 84.6);

Tailwind

colors: {
  custom: {
    50: '#767471',
    500: '#42403c',
    950: '#000000',
  },
}

SCSS

$custom: #42403c;
$custom-light: #767471;
$custom-dark: #000000;

JSON

{
  "hex": "#42403c",
  "rgb": {
    "r": 66,
    "g": 64,
    "b": 60
  },
  "hsl": {
    "h": 40,
    "s": 4.762,
    "l": 24.706
  },
  "oklch": {
    "l": 0.37209,
    "c": 0.00724,
    "h": 84.6
  },
  "luminance": 0.05151
}

Semantic roles & 50–950 ramp

primary

#42403C

secondary

#696C71

accent

#8BAE7A

background

#F7F7F6

surface

#EDEDEC

border

#C8C8C7

text

#080807

muted

#7B7B7A

Preview Lab

Preview with #42403C

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

Preview Lab → · Contrast checker → · Palette generator →