#647C18#647C18

#647C18 is a mid, vivid yellow-green. Relative luminance 0.172; OKLCH L 54.8% C 0.124 H 122.8°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#647C18
RGB	rgb(100, 124, 24)
HSL	hsl(74, 68%, 29%)
HSV	hsv(74, 81%, 49%)
CMYK	cmyk(19.4%, 0%, 80.6%, 51.4%)
CIE-LAB	lab(48.50, -22.88, 47.51)
CIE-LCH	lch(48.50, 52.73, 115.71°)
OKLab	oklab(54.83% -0.0672 0.1044)
OKLCH	oklch(54.83% 0.124 122.8)
XYZ	xyz(12.6282, 17.1905, 3.5168)
Luminance	0.1719 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647C18 #30187C

analogous

#7C6218 #647C18 #327C18

triadic

#647C18 #18647C #7C1864

tetradic

#647C18 #187C62 #30187C #7C1832

square

#647C18 #187C62 #30187C #7C1832

split-complementary

#647C18 #18327C #62187C

monochromatic

#151A05 #3B490E #647C18 #8DAF22 #B1D836

Accessibility & contrast

On white

4.73

#647C18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#647C18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647C18

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647C18	#FFFFFF	#000000	##FFFFFF
##647C18	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)

#817322

Tritanopia (blue-blind)

#6A756A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #647c18;
/* rgb */ color: rgb(100, 124, 24);
/* oklch */ color: oklch(54.8% 0.124 122.8);

Tailwind

colors: {
  custom: {
    50: '#93a25e',
    500: '#647c18',
    950: '#000000',
  },
}

SCSS

$custom: #647c18;
$custom-light: #93a25e;
$custom-dark: #000000;

JSON

{
  "hex": "#647c18",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 24
  },
  "hsl": {
    "h": 74.4,
    "s": 67.568,
    "l": 29.02
  },
  "oklch": {
    "l": 0.54825,
    "c": 0.12419,
    "h": 122.8
  },
  "luminance": 0.17191
}

Semantic roles & 50–950 ramp

primary

#647C18

secondary

#5A3FB1

accent

#3DEA67

background

#F9F9F5

surface

#F2F2EA

border

#CCCCC6

text

#0D0F05

muted

#7E7E79

Preview Lab

Preview with #647C18

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

Preview Lab → · Contrast checker → · Palette generator →