#40423E#40423E

#40423E is a dark, near-neutral grey. Relative luminance 0.053; OKLCH L 37.6% C 0.007 H 128.7°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#40423E
RGB	rgb(64, 66, 62)
HSL	hsl(90, 3%, 25%)
HSV	hsv(90, 6%, 26%)
CMYK	cmyk(3%, 0%, 6.1%, 74.1%)
CIE-LAB	lab(27.67, -1.72, 2.14)
CIE-LCH	lch(27.67, 2.75, 128.84°)
OKLab	oklab(37.58% -0.0045 0.0056)
OKLCH	oklch(37.58% 0.007 128.7)
XYZ	xyz(4.9319, 5.3342, 5.3263)
Luminance	0.0533 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40423E #403E42

analogous

#42423E #40423E #3E423E

triadic

#40423E #3E4042 #423E40

tetradic

#40423E #3E4242 #403E42 #423E3E

square

#40423E #3E4242 #403E42 #423E3E

split-complementary

#40423E #3E3E42 #423E42

monochromatic

#0F100F #212220 #40423E #5F625C #7D8179

Accessibility & contrast

On white

10.16

#40423E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#40423E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40423E

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40423E	#FFFFFF	#000000	##FFFFFF
##40423E	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42413E

Deuteranopia (green-blind)

#42413E

Tritanopia (blue-blind)

#404241

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #40423e;
/* rgb */ color: rgb(64, 66, 62);
/* oklch */ color: oklch(37.6% 0.007 128.7);

Tailwind

colors: {
  custom: {
    50: '#747673',
    500: '#40423e',
    950: '#000000',
  },
}

SCSS

$custom: #40423e;
$custom-light: #747673;
$custom-dark: #000000;

JSON

{
  "hex": "#40423e",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 62
  },
  "hsl": {
    "h": 90,
    "s": 3.125,
    "l": 25.098
  },
  "oklch": {
    "l": 0.3758,
    "c": 0.0072,
    "h": 128.7
  },
  "luminance": 0.05334
}

Semantic roles & 50–950 ramp

primary

#40423E

secondary

#6E6B70

accent

#7BAC94

background

#F7F7F6

surface

#EDEDEC

border

#C8C8C7

text

#080808

muted

#7B7B7B

Preview Lab

Preview with #40423E

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

Preview Lab → · Contrast checker → · Palette generator →