#403838#403838

#403838 is a dark, near-neutral grey. Relative luminance 0.042; OKLCH L 34.9% C 0.011 H 17.7°. Best body text is #FFFFFF at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#403838
RGB	rgb(64, 56, 56)
HSL	hsl(0, 7%, 24%)
HSV	hsv(0, 13%, 25%)
CMYK	cmyk(0%, 12.5%, 12.5%, 74.9%)
CIE-LAB	lab(24.33, 3.51, 1.28)
CIE-LCH	lch(24.33, 3.73, 20.10°)
OKLab	oklab(34.9% 0.0108 0.0034)
OKLCH	oklch(34.9% 0.011 17.7)
XYZ	xyz(4.2423, 4.2039, 4.3286)
Luminance	0.0420 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403838 #384040

analogous

#40383C #403838 #403C38

triadic

#403838 #384038 #383840

tetradic

#403838 #3C4038 #384040 #3C3840

square

#403838 #3C4038 #384040 #3C3840

split-complementary

#403838 #38403C #383C40

monochromatic

#100E0E #1F1B1B #403838 #615555 #817171

Accessibility & contrast

On white

11.41

#403838 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#403838 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403838

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403838	#FFFFFF	#000000	##FFFFFF
##403838	1.00	11.41	1.84	11.41
#FFFFFF	11.41	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393938

Deuteranopia (green-blind)

#3B3A38

Tritanopia (blue-blind)

#423738

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #403838;
/* rgb */ color: rgb(64, 56, 56);
/* oklch */ color: oklch(34.9% 0.011 17.7);

Tailwind

colors: {
  custom: {
    50: '#746e6e',
    500: '#403838',
    950: '#000000',
  },
}

SCSS

$custom: #403838;
$custom-light: #746e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#403838",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 56
  },
  "hsl": {
    "h": 0,
    "s": 6.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.34904,
    "c": 0.01129,
    "h": 17.7
  },
  "luminance": 0.04204
}

Semantic roles & 50–950 ramp

primary

#403838

secondary

#656F6F

accent

#B0B078

background

#F7F6F6

surface

#EDEBEB

border

#C8C6C6

text

#080707

muted

#7B7A7A

Preview Lab

Preview with #403838

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

Preview Lab → · Contrast checker → · Palette generator →