#647B19#647B19

#647B19 is a mid, vivid yellow-green. Relative luminance 0.169; OKLCH L 54.6% C 0.122 H 122.4°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#647B19
RGB	rgb(100, 123, 25)
HSL	hsl(74, 66%, 29%)
HSV	hsv(74, 80%, 48%)
CMYK	cmyk(18.7%, 0%, 79.7%, 51.8%)
CIE-LAB	lab(48.19, -22.32, 46.90)
CIE-LCH	lch(48.19, 51.94, 115.45°)
OKLab	oklab(54.58% -0.0656 0.1033)
OKLCH	oklch(54.58% 0.122 122.4)
XYZ	xyz(12.5141, 16.9454, 3.5310)
Luminance	0.1694 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647B19 #30197B

analogous

#7B6119 #647B19 #337B19

triadic

#647B19 #19647B #7B1964

tetradic

#647B19 #197B61 #30197B #7B1933

square

#647B19 #197B61 #30197B #7B1933

split-complementary

#647B19 #19337B #61197B

monochromatic

#151905 #3B480F #647B19 #8DAE23 #B1D738

Accessibility & contrast

On white

4.78

#647B19 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#647B19 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647B19

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647B19	#FFFFFF	#000000	##FFFFFF
##647B19	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837301

Deuteranopia (green-blind)

#807223

Tritanopia (blue-blind)

#6A7469

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #647b19;
/* rgb */ color: rgb(100, 123, 25);
/* oklch */ color: oklch(54.6% 0.122 122.4);

Tailwind

colors: {
  custom: {
    50: '#93a15f',
    500: '#647b19',
    950: '#000000',
  },
}

SCSS

$custom: #647b19;
$custom-light: #93a15f;
$custom-dark: #000000;

JSON

{
  "hex": "#647b19",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 25
  },
  "hsl": {
    "h": 74.082,
    "s": 66.216,
    "l": 29.02
  },
  "oklch": {
    "l": 0.54578,
    "c": 0.12238,
    "h": 122.4
  },
  "luminance": 0.16945
}

Semantic roles & 50–950 ramp

primary

#647B19

secondary

#5A40AF

accent

#3FE967

background

#F9F9F5

surface

#F2F2EA

border

#CCCCC6

text

#0D0E05

muted

#7E7E79

Preview Lab

Preview with #647B19

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

Preview Lab → · Contrast checker → · Palette generator →