#646E4C#646E4C

#646E4C is a mid, muted yellow-green. Relative luminance 0.144; OKLCH L 52.0% C 0.052 H 121.5°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#646E4C
RGB	rgb(100, 110, 76)
HSL	hsl(78, 18%, 36%)
HSV	hsv(78, 31%, 43%)
CMYK	cmyk(9.1%, 0%, 30.9%, 56.9%)
CIE-LAB	lab(44.78, -10.19, 17.75)
CIE-LCH	lch(44.78, 20.47, 119.86°)
OKLab	oklab(52.03% -0.0273 0.0445)
OKLCH	oklch(52.03% 0.052 121.5)
XYZ	xyz(12.1359, 14.3830, 8.9729)
Luminance	0.1438 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646E4C #564C6E

analogous

#6E674C #646E4C #536E4C

triadic

#646E4C #4C646E #6E4C64

tetradic

#646E4C #4C6E67 #564C6E #6E4C53

square

#646E4C #4C6E67 #564C6E #6E4C53

split-complementary

#646E4C #4C536E #674C6E

monochromatic

#22261A #434A33 #646E4C #859265 #A2AD88

Accessibility & contrast

On white

5.42

#646E4C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#646E4C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646E4C

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646E4C	#FFFFFF	#000000	##FFFFFF
##646E4C	1.00	5.42	3.88	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#726A4A

Deuteranopia (green-blind)

#716A4E

Tritanopia (blue-blind)

#676B65

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #646e4c;
/* rgb */ color: rgb(100, 110, 76);
/* oklch */ color: oklch(52.0% 0.052 121.5);

Tailwind

colors: {
  custom: {
    50: '#90977e',
    500: '#646e4c',
    950: '#000000',
  },
}

SCSS

$custom: #646e4c;
$custom-light: #90977e;
$custom-dark: #000000;

JSON

{
  "hex": "#646e4c",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 76
  },
  "hsl": {
    "h": 77.647,
    "s": 18.28,
    "l": 36.471
  },
  "oklch": {
    "l": 0.52032,
    "c": 0.05225,
    "h": 121.5
  },
  "luminance": 0.14383
}

Semantic roles & 50–950 ramp

primary

#646E4C

secondary

#857C9A

accent

#6DBB84

background

#F8F9F7

surface

#F0F2EE

border

#CBCCC9

text

#0C0D0A

muted

#7D7E7C

Preview Lab

Preview with #646E4C

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

Preview Lab → · Contrast checker → · Palette generator →