#646A50#646A50

#646A50 is a mid, muted yellow-green. Relative luminance 0.136; OKLCH L 51.2% C 0.040 H 118.4°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#646A50
RGB	rgb(100, 106, 80)
HSL	hsl(74, 14%, 36%)
HSV	hsv(74, 25%, 42%)
CMYK	cmyk(5.7%, 0%, 24.5%, 58.4%)
CIE-LAB	lab(43.65, -7.27, 13.87)
CIE-LCH	lch(43.65, 15.66, 117.67°)
OKLab	oklab(51.16% -0.019 0.0352)
OKLCH	oklch(51.16% 0.04 118.4)
XYZ	xyz(11.8574, 13.5966, 9.5876)
Luminance	0.1360 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646A50 #56506A

analogous

#6A6350 #646A50 #576A50

triadic

#646A50 #50646A #6A5064

tetradic

#646A50 #506A63 #56506A #6A5057

square

#646A50 #506A63 #56506A #6A5057

split-complementary

#646A50 #50576A #63506A

monochromatic

#22241B #434736 #646A50 #858D6A #A2A88C

Accessibility & contrast

On white

5.65

#646A50 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#646A50 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646A50

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646A50	#FFFFFF	#000000	##FFFFFF
##646A50	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E674E

Deuteranopia (green-blind)

#6D6751

Tritanopia (blue-blind)

#676763

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #646a50;
/* rgb */ color: rgb(100, 106, 80);
/* oklch */ color: oklch(51.2% 0.040 118.4);

Tailwind

colors: {
  custom: {
    50: '#909481',
    500: '#646a50',
    950: '#000000',
  },
}

SCSS

$custom: #646a50;
$custom-light: #909481;
$custom-dark: #000000;

JSON

{
  "hex": "#646a50",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 80
  },
  "hsl": {
    "h": 73.846,
    "s": 13.978,
    "l": 36.471
  },
  "oklch": {
    "l": 0.51162,
    "c": 0.04004,
    "h": 118.4
  },
  "luminance": 0.13597
}

Semantic roles & 50–950 ramp

primary

#646A50

secondary

#858096

accent

#71B781

background

#F8F9F7

surface

#F0F1EE

border

#CBCBC9

text

#0C0D0A

muted

#7D7E7C

Preview Lab

Preview with #646A50

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

Preview Lab → · Contrast checker → · Palette generator →