#40443E#40443E

#40443E is a dark, near-neutral grey. Relative luminance 0.056; OKLCH L 38.1% C 0.011 H 135.0°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#40443E
RGB	rgb(64, 68, 62)
HSL	hsl(100, 5%, 25%)
HSV	hsv(100, 9%, 27%)
CMYK	cmyk(5.9%, 0%, 8.8%, 73.3%)
CIE-LAB	lab(28.31, -2.99, 3.06)
CIE-LCH	lch(28.31, 4.28, 134.34°)
OKLab	oklab(38.09% -0.008 0.008)
OKLCH	oklch(38.09% 0.011 135)
XYZ	xyz(5.0508, 5.5720, 5.3659)
Luminance	0.0557 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40443E #423E44

analogous

#43443E #40443E #3E443F

triadic

#40443E #3E4044 #443E40

tetradic

#40443E #3E4344 #423E44 #443F3E

square

#40443E #3E4344 #423E44 #443F3E

split-complementary

#40443E #3F3E44 #443E43

monochromatic

#0F100F #222421 #40443E #5E645B #7C8478

Accessibility & contrast

On white

9.93

#40443E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#40443E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40443E

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40443E	#FFFFFF	#000000	##FFFFFF
##40443E	1.00	9.93	2.11	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45433E

Deuteranopia (green-blind)

#44433E

Tritanopia (blue-blind)

#404342

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #40443e;
/* rgb */ color: rgb(64, 68, 62);
/* oklch */ color: oklch(38.1% 0.011 135.0);

Tailwind

colors: {
  custom: {
    50: '#747773',
    500: '#40443e',
    950: '#000000',
  },
}

SCSS

$custom: #40443e;
$custom-light: #747773;
$custom-dark: #000000;

JSON

{
  "hex": "#40443e",
  "rgb": {
    "r": 64,
    "g": 68,
    "b": 62
  },
  "hsl": {
    "h": 100,
    "s": 4.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.38085,
    "c": 0.01131,
    "h": 135
  },
  "luminance": 0.05572
}

Semantic roles & 50–950 ramp

primary

#40443E

secondary

#706B72

accent

#7AAE9D

background

#F7F7F6

surface

#EDEDEC

border

#C8C8C7

text

#080808

muted

#7B7B7B

Preview Lab

Preview with #40443E

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

Preview Lab → · Contrast checker → · Palette generator →