#647C17#647C17

#647C17 is a mid, vivid yellow-green. Relative luminance 0.172; OKLCH L 54.8% C 0.125 H 122.7°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#647C17
RGB	rgb(100, 124, 23)
HSL	hsl(74, 69%, 29%)
HSV	hsv(74, 81%, 49%)
CMYK	cmyk(19.4%, 0%, 81.5%, 51.4%)
CIE-LAB	lab(48.49, -22.92, 47.83)
CIE-LCH	lch(48.49, 53.04, 115.61°)
OKLab	oklab(54.82% -0.0675 0.1049)
OKLCH	oklch(54.82% 0.125 122.7)
XYZ	xyz(12.6180, 17.1864, 3.4630)
Luminance	0.1719 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647C17 #2F177C

analogous

#7C6217 #647C17 #327C17

triadic

#647C17 #17647C #7C1764

tetradic

#647C17 #177C62 #2F177C #7C1732

square

#647C17 #177C62 #2F177C #7C1732

split-complementary

#647C17 #17327C #62177C

monochromatic

#151A05 #3A480D #647C17 #8EB021 #B2D934

Accessibility & contrast

On white

4.73

#647C17 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#647C17 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647C17

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647C17	#FFFFFF	#000000	##FFFFFF
##647C17	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#847400

Deuteranopia (green-blind)

#817321

Tritanopia (blue-blind)

#6A7569

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #647c17;
/* rgb */ color: rgb(100, 124, 23);
/* oklch */ color: oklch(54.8% 0.125 122.7);

Tailwind

colors: {
  custom: {
    50: '#93a25e',
    500: '#647c17',
    950: '#000000',
  },
}

SCSS

$custom: #647c17;
$custom-light: #93a25e;
$custom-dark: #000000;

JSON

{
  "hex": "#647c17",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 23
  },
  "hsl": {
    "h": 74.257,
    "s": 68.707,
    "l": 28.824
  },
  "oklch": {
    "l": 0.5482,
    "c": 0.12472,
    "h": 122.7
  },
  "luminance": 0.17186
}

Semantic roles & 50–950 ramp

primary

#647C17

secondary

#593EB1

accent

#3CEC66

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0F05

muted

#7E7E79

Preview Lab

Preview with #647C17

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

Preview Lab → · Contrast checker → · Palette generator →