#647D18#647D18

#647D18 is a mid, vivid yellow-green. Relative luminance 0.174; OKLCH L 55.1% C 0.125 H 123.2°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#647D18
RGB	rgb(100, 125, 24)
HSL	hsl(75, 68%, 29%)
HSV	hsv(75, 81%, 49%)
CMYK	cmyk(20%, 0%, 80.8%, 51%)
CIE-LAB	lab(48.81, -23.38, 47.80)
CIE-LCH	lch(48.81, 53.21, 116.07°)
OKLab	oklab(55.08% -0.0686 0.105)
OKLCH	oklch(55.08% 0.125 123.2)
XYZ	xyz(12.7542, 17.4424, 3.5588)
Luminance	0.1744 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647D18 #31187D

analogous

#7D6418 #647D18 #327D18

triadic

#647D18 #18647D #7D1864

tetradic

#647D18 #187D64 #31187D #7D1832

square

#647D18 #187D64 #31187D #7D1832

split-complementary

#647D18 #18327D #64187D

monochromatic

#151A05 #3B4A0E #647D18 #8DB022 #B1D937

Accessibility & contrast

On white

4.68

#647D18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#647D18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647D18

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647D18	#FFFFFF	#000000	##FFFFFF
##647D18	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#857500

Deuteranopia (green-blind)

#817422

Tritanopia (blue-blind)

#69766A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #647d18;
/* rgb */ color: rgb(100, 125, 24);
/* oklch */ color: oklch(55.1% 0.125 123.2);

Tailwind

colors: {
  custom: {
    50: '#93a25f',
    500: '#647d18',
    950: '#000000',
  },
}

SCSS

$custom: #647d18;
$custom-light: #93a25f;
$custom-dark: #000000;

JSON

{
  "hex": "#647d18",
  "rgb": {
    "r": 100,
    "g": 125,
    "b": 24
  },
  "hsl": {
    "h": 74.851,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.55079,
    "c": 0.12545,
    "h": 123.2
  },
  "luminance": 0.17443
}

Semantic roles & 50–950 ramp

primary

#647D18

secondary

#5C3FB2

accent

#3DEB68

background

#F9FAF5

surface

#F2F3EA

border

#CCCDC6

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #647D18

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

Preview Lab → · Contrast checker → · Palette generator →