#646464#646464

#646464 is a mid, near-neutral grey. Relative luminance 0.127; OKLCH L 50.3% C 0.000 H 0.0°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#646464
RGB	rgb(100, 100, 100)
HSL	hsl(0, 0%, 39%)
HSV	hsv(0, 0%, 39%)
CMYK	cmyk(0%, 0%, 0%, 60.8%)
CIE-LAB	lab(42.37, 0.00, 0.00)
CIE-LCH	lch(42.37, 0.00, 90.00°)
OKLab	oklab(50.32% 0 0)
OKLCH	oklch(50.32% 0 0)
XYZ	xyz(12.1126, 12.7438, 13.8758)
Luminance	0.1274 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646464 #646464

analogous

#646464 #646464 #646464

triadic

#646464 #646464 #646464

tetradic

#646464 #646464 #646464 #646464

square

#646464 #646464 #646464 #646464

split-complementary

#646464 #646464 #646464

monochromatic

#272727 #454545 #646464 #838383 #A1A1A1

Accessibility & contrast

On white

5.92

#646464 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#646464 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646464

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646464	#FFFFFF	#000000	##FFFFFF
##646464	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#646464

Deuteranopia (green-blind)

#646464

Tritanopia (blue-blind)

#646464

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #646464;
/* rgb */ color: rgb(100, 100, 100);
/* oklch */ color: oklch(50.3% 0.000 0.0);

Tailwind

colors: {
  custom: {
    50: '#909090',
    500: '#646464',
    950: '#000000',
  },
}

SCSS

$custom: #646464;
$custom-light: #909090;
$custom-dark: #000000;

JSON

{
  "hex": "#646464",
  "rgb": {
    "r": 100,
    "g": 100,
    "b": 100
  },
  "hsl": {
    "h": 0,
    "s": 0,
    "l": 39.216
  },
  "oklch": {
    "l": 0.50323,
    "c": 0,
    "h": 0
  },
  "luminance": 0.12744
}

Semantic roles & 50–950 ramp

primary

#646464

secondary

#929292

accent

#A9A97E

background

#F8F8F8

surface

#F0F0F0

border

#CBCBCB

text

#0C0C0C

muted

#7D7D7D

Preview Lab

Preview with #646464

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

Preview Lab → · Contrast checker → · Palette generator →