#404243#404243

#404243 is a dark, near-neutral grey. Relative luminance 0.054; OKLCH L 37.8% C 0.003 H 228.8°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#404243
RGB	rgb(64, 66, 67)
HSL	hsl(200, 2%, 26%)
HSV	hsv(200, 4%, 26%)
CMYK	cmyk(4.5%, 1.5%, 0%, 73.7%)
CIE-LAB	lab(27.82, -0.60, -0.90)
CIE-LCH	lch(27.82, 1.08, 236.05°)
OKLab	oklab(37.76% -0.0021 -0.0024)
OKLCH	oklch(37.76% 0.003 228.8)
XYZ	xyz(5.0755, 5.3916, 6.0824)
Luminance	0.0539 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404243 #434140

analogous

#404342 #404243 #404043

triadic

#404243 #434042 #424340

tetradic

#404243 #424043 #434140 #404340

square

#404243 #424043 #434140 #404340

split-complementary

#404243 #434040 #434240

monochromatic

#0F0F10 #222324 #404243 #5E6162 #7C8082

Accessibility & contrast

On white

10.10

#404243 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#404243 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404243

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404243	#FFFFFF	#000000	##FFFFFF
##404243	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#414243

Deuteranopia (green-blind)

#414143

Tritanopia (blue-blind)

#3F4242

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #404243;
/* rgb */ color: rgb(64, 66, 67);
/* oklch */ color: oklch(37.8% 0.003 228.8);

Tailwind

colors: {
  custom: {
    50: '#747677',
    500: '#404243',
    950: '#000000',
  },
}

SCSS

$custom: #404243;
$custom-light: #747677;
$custom-dark: #000000;

JSON

{
  "hex": "#404243",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 67
  },
  "hsl": {
    "h": 200,
    "s": 2.29,
    "l": 25.686
  },
  "oklch": {
    "l": 0.37755,
    "c": 0.00319,
    "h": 228.8
  },
  "luminance": 0.05392
}

Semantic roles & 50–950 ramp

primary

#404243

secondary

#716F6E

accent

#8C7CAC

background

#F7F7F7

surface

#EDEDED

border

#C8C8C8

text

#080808

muted

#7B7B7B

Preview Lab

Preview with #404243

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

Preview Lab → · Contrast checker → · Palette generator →