#647E18#647E18

#647E18 is a mid, vivid yellow-green. Relative luminance 0.177; OKLCH L 55.3% C 0.127 H 123.5°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#647E18
RGB	rgb(100, 126, 24)
HSL	hsl(75, 68%, 29%)
HSV	hsv(75, 81%, 49%)
CMYK	cmyk(20.6%, 0%, 81%, 50.6%)
CIE-LAB	lab(49.13, -23.89, 48.09)
CIE-LCH	lch(49.13, 53.69, 116.42°)
OKLab	oklab(55.33% -0.07 0.1056)
OKLCH	oklch(55.33% 0.127 123.5)
XYZ	xyz(12.8814, 17.6969, 3.6012)
Luminance	0.1770 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647E18 #32187E

analogous

#7E6518 #647E18 #317E18

triadic

#647E18 #18647E #7E1864

tetradic

#647E18 #187E65 #32187E #7E1831

square

#647E18 #187E65 #32187E #7E1831

split-complementary

#647E18 #18317E #65187E

monochromatic

#141A05 #3B4B0E #647E18 #8DB122 #B0D937

Accessibility & contrast

On white

4.63

#647E18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#647E18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #647E18

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647E18	#FFFFFF	#000000	##FFFFFF
##647E18	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#867600

Deuteranopia (green-blind)

#827522

Tritanopia (blue-blind)

#69776B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #647e18;
/* rgb */ color: rgb(100, 126, 24);
/* oklch */ color: oklch(55.3% 0.127 123.5);

Tailwind

colors: {
  custom: {
    50: '#93a35f',
    500: '#647e18',
    950: '#000000',
  },
}

SCSS

$custom: #647e18;
$custom-light: #93a35f;
$custom-dark: #000000;

JSON

{
  "hex": "#647e18",
  "rgb": {
    "r": 100,
    "g": 126,
    "b": 24
  },
  "hsl": {
    "h": 75.294,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.55332,
    "c": 0.12672,
    "h": 123.5
  },
  "luminance": 0.17697
}

Semantic roles & 50–950 ramp

primary

#647E18

secondary

#5D3FB2

accent

#3DEB69

background

#F9FAF5

surface

#F2F3EA

border

#CCCDC6

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #647E18

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

Preview Lab → · Contrast checker → · Palette generator →