#647C3F#647C3F

#647C3F is a mid, moderate yellow-green. Relative luminance 0.175; OKLCH L 55.2% C 0.091 H 126.8°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#647C3F
RGB	rgb(100, 124, 63)
HSL	hsl(84, 33%, 37%)
HSV	hsv(84, 49%, 49%)
CMYK	cmyk(19.4%, 0%, 49.2%, 51.4%)
CIE-LAB	lab(48.86, -19.61, 30.32)
CIE-LCH	lch(48.86, 36.11, 122.90°)
OKLab	oklab(55.24% -0.0545 0.0729)
OKLCH	oklch(55.24% 0.091 126.8)
XYZ	xyz(13.3603, 17.4834, 7.3724)
Luminance	0.1748 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647C3F #573F7C

analogous

#7C763F #647C3F #467C3F

triadic

#647C3F #3F647C #7C3F64

tetradic

#647C3F #3F7C76 #573F7C #7C3F46

square

#647C3F #3F7C76 #573F7C #7C3F46

split-complementary

#647C3F #3F467C #763F7C

monochromatic

#232B16 #43532A #647C3F #85A554 #A2BB7A

Accessibility & contrast

On white

4.67

#647C3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#647C3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #647C3F

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647C3F	#FFFFFF	#000000	##FFFFFF
##647C3F	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#82753A

Deuteranopia (green-blind)

#7E7443

Tritanopia (blue-blind)

#67776E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #647c3f;
/* rgb */ color: rgb(100, 124, 63);
/* oklch */ color: oklch(55.2% 0.091 126.8);

Tailwind

colors: {
  custom: {
    50: '#91a275',
    500: '#647c3f',
    950: '#000000',
  },
}

SCSS

$custom: #647c3f;
$custom-light: #91a275;
$custom-dark: #000000;

JSON

{
  "hex": "#647c3f",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 63
  },
  "hsl": {
    "h": 83.607,
    "s": 32.62,
    "l": 36.667
  },
  "oklch": {
    "l": 0.55236,
    "c": 0.09101,
    "h": 126.8
  },
  "luminance": 0.17484
}

Semantic roles & 50–950 ramp

primary

#647C3F

secondary

#8671A6

accent

#5FC989

background

#F9F9F7

surface

#F1F2ED

border

#CBCCC8

text

#0D0F08

muted

#7E7E7B

Preview Lab

Preview with #647C3F

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

Preview Lab → · Contrast checker → · Palette generator →