#647B3D#647B3D

#647B3D is a mid, moderate yellow-green. Relative luminance 0.172; OKLCH L 55.0% C 0.092 H 126.0°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#647B3D
RGB	rgb(100, 123, 61)
HSL	hsl(82, 34%, 36%)
HSV	hsv(82, 50%, 48%)
CMYK	cmyk(18.7%, 0%, 50.4%, 51.8%)
CIE-LAB	lab(48.53, -19.33, 30.97)
CIE-LCH	lch(48.53, 36.51, 121.96°)
OKLab	oklab(54.96% -0.0539 0.0742)
OKLCH	oklch(54.96% 0.092 126)
XYZ	xyz(13.1807, 17.2120, 7.0418)
Luminance	0.1721 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647B3D #543D7B

analogous

#7B733D #647B3D #457B3D

triadic

#647B3D #3D647B #7B3D64

tetradic

#647B3D #3D7B73 #543D7B #7B3D45

square

#647B3D #3D7B73 #543D7B #7B3D45

split-complementary

#647B3D #3D457B #733D7B

monochromatic

#212914 #435229 #647B3D #85A451 #A2BC77

Accessibility & contrast

On white

4.73

#647B3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#647B3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647B3D

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647B3D	#FFFFFF	#000000	##FFFFFF
##647B3D	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817438

Deuteranopia (green-blind)

#7D7341

Tritanopia (blue-blind)

#67766D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #647b3d;
/* rgb */ color: rgb(100, 123, 61);
/* oklch */ color: oklch(55.0% 0.092 126.0);

Tailwind

colors: {
  custom: {
    50: '#91a174',
    500: '#647b3d',
    950: '#000000',
  },
}

SCSS

$custom: #647b3d;
$custom-light: #91a174;
$custom-dark: #000000;

JSON

{
  "hex": "#647b3d",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 61
  },
  "hsl": {
    "h": 82.258,
    "s": 33.696,
    "l": 36.078
  },
  "oklch": {
    "l": 0.54956,
    "c": 0.09168,
    "h": 126
  },
  "luminance": 0.17212
}

Semantic roles & 50–950 ramp

primary

#647B3D

secondary

#836EA6

accent

#5ECA86

background

#F9F9F7

surface

#F1F2ED

border

#CBCCC8

text

#0D0F08

muted

#7E7E7B

Preview Lab

Preview with #647B3D

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

Preview Lab → · Contrast checker → · Palette generator →