#40403E#40403E

#40403E is a dark, near-neutral grey. Relative luminance 0.051; OKLCH L 37.1% C 0.003 H 106.6°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#40403E
RGB	rgb(64, 64, 62)
HSL	hsl(60, 2%, 25%)
HSV	hsv(60, 3%, 25%)
CMYK	cmyk(0%, 0%, 3.1%, 74.9%)
CIE-LAB	lab(27.03, -0.44, 1.22)
CIE-LCH	lch(27.03, 1.30, 109.93°)
OKLab	oklab(37.08% -0.001 0.0032)
OKLCH	oklch(37.08% 0.003 106.6)
XYZ	xyz(4.8171, 5.1046, 5.2880)
Luminance	0.0510 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40403E #3E3E40

analogous

#403F3E #40403E #3F403E

triadic

#40403E #3E4040 #403E40

tetradic

#40403E #3E403F #3E3E40 #403E3F

square

#40403E #3E403F #3E3E40 #403E3F

split-complementary

#40403E #3E3F40 #3F3E40

monochromatic

#10100F #212120 #40403E #5F5F5C #7E7E7A

Accessibility & contrast

On white

10.39

#40403E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#40403E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40403E

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40403E	#FFFFFF	#000000	##FFFFFF
##40403E	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#40403E

Deuteranopia (green-blind)

#40403E

Tritanopia (blue-blind)

#40403F

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #40403e;
/* rgb */ color: rgb(64, 64, 62);
/* oklch */ color: oklch(37.1% 0.003 106.6);

Tailwind

colors: {
  custom: {
    50: '#747473',
    500: '#40403e',
    950: '#000000',
  },
}

SCSS

$custom: #40403e;
$custom-light: #747473;
$custom-dark: #000000;

JSON

{
  "hex": "#40403e",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 62
  },
  "hsl": {
    "h": 60,
    "s": 1.587,
    "l": 24.706
  },
  "oklch": {
    "l": 0.37079,
    "c": 0.00336,
    "h": 106.6
  },
  "luminance": 0.05105
}

Semantic roles & 50–950 ramp

primary

#40403E

secondary

#6C6C6E

accent

#7DAB7D

background

#F7F7F6

surface

#EDEDEC

border

#C8C8C7

text

#080808

muted

#7B7B7B

Preview Lab

Preview with #40403E

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

Preview Lab → · Contrast checker → · Palette generator →