#647C40#647C40

#647C40 is a mid, moderate yellow-green. Relative luminance 0.175; OKLCH L 55.3% C 0.090 H 127.0°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#647C40
RGB	rgb(100, 124, 64)
HSL	hsl(84, 32%, 37%)
HSV	hsv(84, 48%, 49%)
CMYK	cmyk(19.4%, 0%, 48.4%, 51.4%)
CIE-LAB	lab(48.88, -19.49, 29.80)
CIE-LCH	lch(48.88, 35.60, 123.18°)
OKLab	oklab(55.25% -0.0541 0.0718)
OKLCH	oklch(55.25% 0.09 127)
XYZ	xyz(13.3885, 17.4946, 7.5209)
Luminance	0.1749 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#647C40 #58407C

analogous

#7C7640 #647C40 #467C40

triadic

#647C40 #40647C #7C4064

tetradic

#647C40 #407C76 #58407C #7C4046

square

#647C40 #407C76 #58407C #7C4046

split-complementary

#647C40 #40467C #76407C

monochromatic

#232B16 #43542B #647C40 #85A455 #A2BB7B

Accessibility & contrast

On white

4.67

#647C40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#647C40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #647C40

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##647C40	#FFFFFF	#000000	##FFFFFF
##647C40	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)

#81753B

Deuteranopia (green-blind)

#7E7443

Tritanopia (blue-blind)

#67776E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #647c40;
/* rgb */ color: rgb(100, 124, 64);
/* oklch */ color: oklch(55.3% 0.090 127.0);

Tailwind

colors: {
  custom: {
    50: '#91a276',
    500: '#647c40',
    950: '#000000',
  },
}

SCSS

$custom: #647c40;
$custom-light: #91a276;
$custom-dark: #000000;

JSON

{
  "hex": "#647c40",
  "rgb": {
    "r": 100,
    "g": 124,
    "b": 64
  },
  "hsl": {
    "h": 84,
    "s": 31.915,
    "l": 36.863
  },
  "oklch": {
    "l": 0.55252,
    "c": 0.08989,
    "h": 127
  },
  "luminance": 0.17495
}

Semantic roles & 50–950 ramp

primary

#647C40

secondary

#8772A6

accent

#60C889

background

#F9F9F7

surface

#F1F2ED

border

#CBCCC8

text

#0D0F08

muted

#7E7E7B

Preview Lab

Preview with #647C40

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

Preview Lab → · Contrast checker → · Palette generator →