#646864#646864

#646864 is a mid, near-neutral grey. Relative luminance 0.135; OKLCH L 51.2% C 0.008 H 145.5°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#646864
RGB	rgb(100, 104, 100)
HSL	hsl(120, 2%, 40%)
HSV	hsv(120, 4%, 41%)
CMYK	cmyk(3.8%, 0%, 3.8%, 59.2%)
CIE-LAB	lab(43.55, -2.38, 1.71)
CIE-LCH	lch(43.55, 2.93, 144.24°)
OKLab	oklab(51.25% -0.0065 0.0045)
OKLCH	oklch(51.25% 0.008 145.5)
XYZ	xyz(12.5057, 13.5300, 14.0068)
Luminance	0.1353 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646864 #686468

analogous

#666864 #646864 #646866

triadic

#646864 #646468 #686464

tetradic

#646864 #646668 #686468 #686664

square

#646864 #646668 #686468 #686664

split-complementary

#646864 #666468 #686466

monochromatic

#282A28 #464946 #646864 #828782 #A1A5A1

Accessibility & contrast

On white

5.67

#646864 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#646864 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646864

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646864	#FFFFFF	#000000	##FFFFFF
##646864	1.00	5.67	3.71	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#686764

Deuteranopia (green-blind)

#676764

Tritanopia (blue-blind)

#646867

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646864;
/* rgb */ color: rgb(100, 104, 100);
/* oklch */ color: oklch(51.2% 0.008 145.5);

Tailwind

colors: {
  custom: {
    50: '#909390',
    500: '#646864',
    950: '#000000',
  },
}

SCSS

$custom: #646864;
$custom-light: #909390;
$custom-dark: #000000;

JSON

{
  "hex": "#646864",
  "rgb": {
    "r": 100,
    "g": 104,
    "b": 100
  },
  "hsl": {
    "h": 120,
    "s": 1.961,
    "l": 40
  },
  "oklch": {
    "l": 0.51249,
    "c": 0.00792,
    "h": 145.5
  },
  "luminance": 0.1353
}

Semantic roles & 50–950 ramp

primary

#646864

secondary

#959295

accent

#7DABAB

background

#F8F9F8

surface

#F0F1F0

border

#CBCBCB

text

#0C0D0C

muted

#7D7E7D

Preview Lab

Preview with #646864

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

Preview Lab → · Contrast checker → · Palette generator →