#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
RGBrgb(100, 124, 33)
HSLhsl(76, 58%, 31%)
HSVhsv(76, 73%, 49%)
CMYKcmyk(19.4%, 0%, 73.4%, 51.4%)
CIE-LABlab(48.55, -22.38, 44.30)
CIE-LCHlch(48.55, 49.63, 116.80°)
OKLaboklab(54.89% -0.0651 0.0992)
OKLCHoklch(54.89% 0.119 123.3)
XYZxyz(12.7378, 17.2344, 4.0940)
Luminance0.1723 (WCAG relative)
Temperaturewarm
Familyyellow-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
##647C211.004.724.454.72
#FFFFFF4.721.0021.001.00
#0000004.4521.001.0021.00
##FFFFFF4.721.0021.001.00

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 →

#647C21 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva