#647B28#647B28

#647B28 is a mid, moderate yellow-green. Relative luminance 0.170; OKLCH L 54.7% C 0.112 H 123.4°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#647B28
RGB	rgb(100, 123, 40)
HSL	hsl(77, 51%, 32%)
HSV	hsv(77, 67%, 48%)
CMYK	cmyk(18.7%, 0%, 67.5%, 51.8%)
CIE-LAB	lab(48.30, -21.37, 41.08)
CIE-LCH	lch(48.30, 46.31, 117.49°)
OKLab	oklab(54.7% -0.0616 0.0936)
OKLCH	oklch(54.7% 0.112 123.4)
XYZ	xyz(12.7216, 17.0284, 4.6237)
Luminance	0.1703 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647B28 #3F287B

analogous

#7B6928 #647B28 #3A7B28

triadic

#647B28 #28647B #7B2864

tetradic

#647B28 #287B69 #3F287B #7B283A

square

#647B28 #287B69 #3F287B #7B283A

split-complementary

#647B28 #283A7B #69287B

monochromatic

#191F0A #3E4D19 #647B28 #8AA937 #A8C856

Accessibility & contrast

On white

4.77

#647B28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#647B28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647B28

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647B28	#FFFFFF	#000000	##FFFFFF
##647B28	1.00	4.77	4.41	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#82731D

Deuteranopia (green-blind)

#7F732E

Tritanopia (blue-blind)

#69756A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #647b28;
/* rgb */ color: rgb(100, 123, 40);
/* oklch */ color: oklch(54.7% 0.112 123.4);

Tailwind

colors: {
  custom: {
    50: '#93a166',
    500: '#647b28',
    950: '#000000',
  },
}

SCSS

$custom: #647b28;
$custom-light: #93a166;
$custom-dark: #000000;

JSON

{
  "hex": "#647b28",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 40
  },
  "hsl": {
    "h": 76.627,
    "s": 50.92,
    "l": 31.961
  },
  "oklch": {
    "l": 0.54696,
    "c": 0.11204,
    "h": 123.4
  },
  "luminance": 0.17028
}

Semantic roles & 50–950 ramp

primary

#647B28

secondary

#6B52AD

accent

#4DDA74

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0F06

muted

#7E7E7A

Preview Lab

Preview with #647B28

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

Preview Lab → · Contrast checker → · Palette generator →