#404240#404240

#404240 is a dark, near-neutral grey. Relative luminance 0.054; OKLCH L 37.6% C 0.004 H 145.6°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#404240
RGB	rgb(64, 66, 64)
HSL	hsl(120, 2%, 25%)
HSV	hsv(120, 3%, 26%)
CMYK	cmyk(3%, 0%, 3%, 74.1%)
CIE-LAB	lab(27.73, -1.29, 0.92)
CIE-LCH	lch(27.73, 1.58, 144.30°)
OKLab	oklab(37.65% -0.0035 0.0024)
OKLCH	oklch(37.65% 0.004 145.6)
XYZ	xyz(4.9878, 5.3566, 5.6206)
Luminance	0.0536 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404240 #424042

analogous

#414240 #404240 #404241

triadic

#404240 #404042 #424040

tetradic

#404240 #404142 #424042 #424140

square

#404240 #404142 #424042 #424140

split-complementary

#404240 #414042 #424041

monochromatic

#0F100F #222322 #404240 #5E615E #7C807C

Accessibility & contrast

On white

10.14

#404240 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#404240 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404240

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404240	#FFFFFF	#000000	##FFFFFF
##404240	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424240

Deuteranopia (green-blind)

#424140

Tritanopia (blue-blind)

#404241

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #404240;
/* rgb */ color: rgb(64, 66, 64);
/* oklch */ color: oklch(37.6% 0.004 145.6);

Tailwind

colors: {
  custom: {
    50: '#747674',
    500: '#404240',
    950: '#000000',
  },
}

SCSS

$custom: #404240;
$custom-light: #747674;
$custom-dark: #000000;

JSON

{
  "hex": "#404240",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 64
  },
  "hsl": {
    "h": 120,
    "s": 1.538,
    "l": 25.49
  },
  "oklch": {
    "l": 0.37648,
    "c": 0.00428,
    "h": 145.6
  },
  "luminance": 0.05357
}

Semantic roles & 50–950 ramp

primary

#404240

secondary

#706E70

accent

#7DABAB

background

#F7F7F7

surface

#EDEDED

border

#C8C8C8

text

#080808

muted

#7B7B7B

Preview Lab

Preview with #404240

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

Preview Lab → · Contrast checker → · Palette generator →