#647B1F#647B1F

#647B1F is a mid, moderate yellow-green. Relative luminance 0.170; OKLCH L 54.6% C 0.119 H 122.8°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#647B1F
RGB	rgb(100, 123, 31)
HSL	hsl(75, 60%, 30%)
HSV	hsv(75, 75%, 48%)
CMYK	cmyk(18.7%, 0%, 74.8%, 51.8%)
CIE-LAB	lab(48.23, -21.99, 44.76)
CIE-LCH	lch(48.23, 49.87, 116.17°)
OKLab	oklab(54.62% -0.0642 0.0998)
OKLCH	oklch(54.62% 0.119 122.8)
XYZ	xyz(12.5860, 16.9741, 3.9093)
Luminance	0.1697 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647B1F #361F7B

analogous

#7B641F #647B1F #367B1F

triadic

#647B1F #1F647B #7B1F64

tetradic

#647B1F #1F7B64 #361F7B #7B1F36

square

#647B1F #1F7B64 #361F7B #7B1F36

split-complementary

#647B1F #1F367B #641F7B

monochromatic

#151906 #3C4A13 #647B1F #8CAC2B #ADD044

Accessibility & contrast

On white

4.78

#647B1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#647B1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #647B1F

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647B1F	#FFFFFF	#000000	##FFFFFF
##647B1F	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)

#82730E

Deuteranopia (green-blind)

#807227

Tritanopia (blue-blind)

#697569

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #647b1f;
/* rgb */ color: rgb(100, 123, 31);
/* oklch */ color: oklch(54.6% 0.119 122.8);

Tailwind

colors: {
  custom: {
    50: '#93a162',
    500: '#647b1f',
    950: '#000000',
  },
}

SCSS

$custom: #647b1f;
$custom-light: #93a162;
$custom-dark: #000000;

JSON

{
  "hex": "#647b1f",
  "rgb": {
    "r": 100,
    "g": 123,
    "b": 31
  },
  "hsl": {
    "h": 75,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.54619,
    "c": 0.11871,
    "h": 122.8
  },
  "luminance": 0.16974
}

Semantic roles & 50–950 ramp

primary

#647B1F

secondary

#6148AE

accent

#45E36C

background

#F9F9F6

surface

#F2F2EB

border

#CCCCC6

text

#0D0F05

muted

#7E7E7A

Preview Lab

Preview with #647B1F

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

Preview Lab → · Contrast checker → · Palette generator →