#647C21#647C21

#647C21 is a mid, moderate yellow-green. Relative luminance 0.172; OKLCH L 54.9% C 0.119 H 123.3°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#647C21
RGB	rgb(100, 124, 33)
HSL	hsl(76, 58%, 31%)
HSV	hsv(76, 73%, 49%)
CMYK	cmyk(19.4%, 0%, 73.4%, 51.4%)
CIE-LAB	lab(48.55, -22.38, 44.30)
CIE-LCH	lch(48.55, 49.63, 116.80°)
OKLab	oklab(54.89% -0.0651 0.0992)
OKLCH	oklch(54.89% 0.119 123.3)
XYZ	xyz(12.7378, 17.2344, 4.0940)
Luminance	0.1723 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647C21 #39217C

analogous

#7C6621 #647C21 #367C21

triadic

#647C21 #21647C #7C2164

tetradic

#647C21 #217C66 #39217C #7C2136

square

#647C21 #217C66 #39217C #7C2136

split-complementary

#647C21 #21367C #66217C

monochromatic

#161B07 #3D4C14 #647C21 #8BAC2E #ABCF49

Accessibility & contrast

On white

4.72

#647C21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#647C21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647C21

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647C21	#FFFFFF	#000000	##FFFFFF
##647C21	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837411

Deuteranopia (green-blind)

#807329

Tritanopia (blue-blind)

#69766A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #647c21;
/* rgb */ color: rgb(100, 124, 33);
/* oklch */ color: oklch(54.9% 0.119 123.3);

Tailwind

colors: {
  custom: {
    50: '#93a263',
    500: '#647c21',
    950: '#000000',
  },
}

SCSS

$custom: #647c21;
$custom-light: #93a263;
$custom-dark: #000000;

JSON

{
  "hex": "#647c21",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 33
  },
  "hsl": {
    "h": 75.824,
    "s": 57.962,
    "l": 30.784
  },
  "oklch": {
    "l": 0.54887,
    "c": 0.11866,
    "h": 123.3
  },
  "luminance": 0.17234
}

Semantic roles & 50–950 ramp

primary

#647C21

secondary

#654AAF

accent

#47E16F

background

#F9F9F6

surface

#F2F2EB

border

#CCCCC6

text

#0D0F05

muted

#7E7E7A

Preview Lab

Preview with #647C21

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

Preview Lab → · Contrast checker → · Palette generator →