#40403C#40403C

#40403C is a dark, near-neutral grey. Relative luminance 0.051; OKLCH L 37.0% C 0.007 H 106.7°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#40403C
RGB	rgb(64, 64, 60)
HSL	hsl(60, 3%, 24%)
HSV	hsv(60, 6%, 25%)
CMYK	cmyk(0%, 0%, 6.2%, 74.9%)
CIE-LAB	lab(26.97, -0.87, 2.45)
CIE-LCH	lch(26.97, 2.60, 109.66°)
OKLab	oklab(37.01% -0.0019 0.0064)
OKLCH	oklch(37.01% 0.007 106.7)
XYZ	xyz(4.7632, 5.0830, 5.0043)
Luminance	0.0508 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40403C #3C3C40

analogous

#403E3C #40403C #3E403C

triadic

#40403C #3C4040 #403C40

tetradic

#40403C #3C403E #3C3C40 #403C3E

square

#40403C #3C403E #3C3C40 #403C3E

split-complementary

#40403C #3C3E40 #3E3C40

monochromatic

#10100F #20201E #40403C #60605A #7F7F77

Accessibility & contrast

On white

10.41

#40403C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#40403C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40403C

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40403C	#FFFFFF	#000000	##FFFFFF
##40403C	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41403C

Deuteranopia (green-blind)

#41403C

Tritanopia (blue-blind)

#413F3F

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #40403c;
/* rgb */ color: rgb(64, 64, 60);
/* oklch */ color: oklch(37.0% 0.007 106.7);

Tailwind

colors: {
  custom: {
    50: '#747471',
    500: '#40403c',
    950: '#000000',
  },
}

SCSS

$custom: #40403c;
$custom-light: #747471;
$custom-dark: #000000;

JSON

{
  "hex": "#40403c",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 60
  },
  "hsl": {
    "h": 60,
    "s": 3.226,
    "l": 24.314
  },
  "oklch": {
    "l": 0.37012,
    "c": 0.0067,
    "h": 106.7
  },
  "luminance": 0.05083
}

Semantic roles & 50–950 ramp

primary

#40403C

secondary

#69696E

accent

#7BAC7B

background

#F7F7F6

surface

#EDEDEC

border

#C8C8C7

text

#080807

muted

#7B7B7A

Preview Lab

Preview with #40403C

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

Preview Lab → · Contrast checker → · Palette generator →