#646A6E#646A6E

#646A6E is a mid, near-neutral grey. Relative luminance 0.141; OKLCH L 52.0% C 0.010 H 236.7°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#646A6E
RGB	rgb(100, 106, 110)
HSL	hsl(204, 5%, 41%)
HSV	hsv(204, 9%, 43%)
CMYK	cmyk(9.1%, 3.6%, 0%, 56.9%)
CIE-LAB	lab(44.44, -1.42, -3.03)
CIE-LCH	lch(44.44, 3.35, 244.84°)
OKLab	oklab(52.04% -0.0053 -0.0081)
OKLCH	oklch(52.04% 0.01 236.7)
XYZ	xyz(13.2234, 14.1430, 16.7820)
Luminance	0.1414 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646A6E #6E6864

analogous

#646E6D #646A6E #64656E

triadic

#646A6E #6E646A #6A6E64

tetradic

#646A6E #6D646E #6E6864 #656E64

square

#646A6E #6D646E #6E6864 #656E64

split-complementary

#646A6E #6E6465 #6E6D64

monochromatic

#2A2C2E #474B4E #646A6E #82898D #A2A7AA

Accessibility & contrast

On white

5.49

#646A6E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#646A6E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646A6E

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646A6E	#FFFFFF	#000000	##FFFFFF
##646A6E	1.00	5.49	3.83	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#686A6E

Deuteranopia (green-blind)

#67696E

Tritanopia (blue-blind)

#626B6B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #646a6e;
/* rgb */ color: rgb(100, 106, 110);
/* oklch */ color: oklch(52.0% 0.010 236.7);

Tailwind

colors: {
  custom: {
    50: '#909497',
    500: '#646a6e',
    950: '#000000',
  },
}

SCSS

$custom: #646a6e;
$custom-light: #909497;
$custom-dark: #000000;

JSON

{
  "hex": "#646a6e",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 110
  },
  "hsl": {
    "h": 204,
    "s": 4.762,
    "l": 41.176
  },
  "oklch": {
    "l": 0.52045,
    "c": 0.00973,
    "h": 236.7
  },
  "luminance": 0.14143
}

Semantic roles & 50–950 ramp

primary

#646A6E

secondary

#9A9693

accent

#8F7AAE

background

#F8F9F9

surface

#F0F1F2

border

#CBCBCC

text

#0C0D0D

muted

#7D7E7E

Preview Lab

Preview with #646A6E

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

Preview Lab → · Contrast checker → · Palette generator →