#646A5E#646A5E

#646A5E is a mid, near-neutral grey. Relative luminance 0.138; OKLCH L 51.5% C 0.020 H 128.9°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#646A5E
RGB	rgb(100, 106, 94)
HSL	hsl(90, 6%, 39%)
HSV	hsv(90, 11%, 42%)
CMYK	cmyk(5.7%, 0%, 11.3%, 58.4%)
CIE-LAB	lab(43.98, -4.75, 5.95)
CIE-LCH	lch(43.98, 7.62, 128.60°)
OKLab	oklab(51.54% -0.0125 0.0155)
OKLCH	oklch(51.54% 0.02 128.9)
XYZ	xyz(12.4296, 13.8255, 12.6013)
Luminance	0.1383 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646A5E #645E6A

analogous

#6A6A5E #646A5E #5E6A5E

triadic

#646A5E #5E646A #6A5E64

tetradic

#646A5E #5E6A6A #645E6A #6A5E5E

square

#646A5E #5E6A6A #645E6A #6A5E5E

split-complementary

#646A5E #5E5E6A #6A5E6A

monochromatic

#272924 #454A41 #646A5E #838A7B #A1A79C

Accessibility & contrast

On white

5.58

#646A5E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#646A5E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646A5E

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646A5E	#FFFFFF	#000000	##FFFFFF
##646A5E	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B685D

Deuteranopia (green-blind)

#6A685E

Tritanopia (blue-blind)

#656967

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #646a5e;
/* rgb */ color: rgb(100, 106, 94);
/* oklch */ color: oklch(51.5% 0.020 128.9);

Tailwind

colors: {
  custom: {
    50: '#90948b',
    500: '#646a5e',
    950: '#000000',
  },
}

SCSS

$custom: #646a5e;
$custom-light: #90948b;
$custom-dark: #000000;

JSON

{
  "hex": "#646a5e",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 94
  },
  "hsl": {
    "h": 90,
    "s": 6,
    "l": 39.216
  },
  "oklch": {
    "l": 0.51535,
    "c": 0.01989,
    "h": 128.9
  },
  "luminance": 0.13826
}

Semantic roles & 50–950 ramp

primary

#646A5E

secondary

#928D96

accent

#79AF94

background

#F8F9F8

surface

#F0F1F0

border

#CBCBCB

text

#0C0D0C

muted

#7D7E7D

Preview Lab

Preview with #646A5E

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

Preview Lab → · Contrast checker → · Palette generator →