#647B18#647B18

#647B18 is a mid, vivid yellow-green. Relative luminance 0.169; OKLCH L 54.6% C 0.123 H 122.4°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#647B18
RGB	rgb(100, 123, 24)
HSL	hsl(74, 67%, 29%)
HSV	hsv(74, 80%, 48%)
CMYK	cmyk(18.7%, 0%, 80.5%, 51.8%)
CIE-LAB	lab(48.19, -22.37, 47.22)
CIE-LCH	lch(48.19, 52.25, 115.35°)
OKLab	oklab(54.57% -0.0659 0.1038)
OKLCH	oklch(54.57% 0.123 122.4)
XYZ	xyz(12.5035, 16.9412, 3.4752)
Luminance	0.1694 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647B18 #2F187B

analogous

#7B6118 #647B18 #337B18

triadic

#647B18 #18647B #7B1864

tetradic

#647B18 #187B61 #2F187B #7B1833

square

#647B18 #187B61 #2F187B #7B1833

split-complementary

#647B18 #18337B #61187B

monochromatic

#151A05 #3A480E #647B18 #8EAE22 #B2D836

Accessibility & contrast

On white

4.79

#647B18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#647B18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647B18

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647B18	#FFFFFF	#000000	##FFFFFF
##647B18	1.00	4.79	4.39	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837300

Deuteranopia (green-blind)

#807222

Tritanopia (blue-blind)

#6A7469

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #647b18;
/* rgb */ color: rgb(100, 123, 24);
/* oklch */ color: oklch(54.6% 0.123 122.4);

Tailwind

colors: {
  custom: {
    50: '#93a15e',
    500: '#647b18',
    950: '#000000',
  },
}

SCSS

$custom: #647b18;
$custom-light: #93a15e;
$custom-dark: #000000;

JSON

{
  "hex": "#647b18",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 24
  },
  "hsl": {
    "h": 73.939,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.54572,
    "c": 0.12292,
    "h": 122.4
  },
  "luminance": 0.16941
}

Semantic roles & 50–950 ramp

primary

#647B18

secondary

#593FB0

accent

#3EEA66

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0F05

muted

#7E7E79

Preview Lab

Preview with #647B18

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

Preview Lab → · Contrast checker → · Palette generator →