#646E4E#646E4E

#646E4E is a mid, muted yellow-green. Relative luminance 0.144; OKLCH L 52.1% C 0.050 H 122.2°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#646E4E
RGB	rgb(100, 110, 78)
HSL	hsl(79, 17%, 37%)
HSV	hsv(79, 29%, 43%)
CMYK	cmyk(9.1%, 0%, 29.1%, 56.9%)
CIE-LAB	lab(44.82, -9.88, 16.64)
CIE-LCH	lch(44.82, 19.35, 120.70°)
OKLab	oklab(52.08% -0.0264 0.0419)
OKLCH	oklch(52.08% 0.05 122.2)
XYZ	xyz(12.2065, 14.4112, 9.3448)
Luminance	0.1441 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E4E #584E6E

analogous

#6E684E #646E4E #546E4E

triadic

#646E4E #4E646E #6E4E64

tetradic

#646E4E #4E6E68 #584E6E #6E4E54

square

#646E4E #4E6E68 #584E6E #6E4E54

split-complementary

#646E4E #4E546E #684E6E

monochromatic

#23261B #434A35 #646E4E #859267 #A2AC8A

Accessibility & contrast

On white

5.41

#646E4E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#646E4E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E4E

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E4E	#FFFFFF	#000000	##FFFFFF
##646E4E	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#726A4C

Deuteranopia (green-blind)

#716A4F

Tritanopia (blue-blind)

#676B66

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #646e4e;
/* rgb */ color: rgb(100, 110, 78);
/* oklch */ color: oklch(52.1% 0.050 122.2);

Tailwind

colors: {
  custom: {
    50: '#90977f',
    500: '#646e4e',
    950: '#000000',
  },
}

SCSS

$custom: #646e4e;
$custom-light: #90977f;
$custom-dark: #000000;

JSON

{
  "hex": "#646e4e",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 78
  },
  "hsl": {
    "h": 78.75,
    "s": 17.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.52077,
    "c": 0.04952,
    "h": 122.2
  },
  "luminance": 0.14411
}

Semantic roles & 50–950 ramp

primary

#646E4E

secondary

#877E9A

accent

#6EBA86

background

#F8F9F7

surface

#F0F2EE

border

#CBCCC9

text

#0C0D0A

muted

#7D7E7C

Preview Lab

Preview with #646E4E

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

Preview Lab → · Contrast checker → · Palette generator →