#639971#639971

#639971 is a light, moderate green. Relative luminance 0.266; OKLCH L 63.4% C 0.083 H 151.7°. Best body text is #000000 at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#639971
RGB	rgb(99, 153, 113)
HSL	hsl(136, 21%, 49%)
HSV	hsv(136, 35%, 60%)
CMYK	cmyk(35.3%, 0%, 26.1%, 40%)
CIE-LAB	lab(58.63, -26.69, 15.49)
CIE-LCH	lch(58.63, 30.86, 149.87°)
OKLab	oklab(63.39% -0.0732 0.0395)
OKLCH	oklch(63.39% 0.083 151.7)
XYZ	xyz(19.5164, 26.6263, 19.7306)
Luminance	0.2663 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#639971 #99638B

analogous

#709963 #639971 #63998C

triadic

#639971 #716399 #997163

tetradic

#639971 #637099 #99638B #998C63

square

#639971 #637099 #99638B #998C63

split-complementary

#639971 #8C6399 #996370

monochromatic

#334F3A #4B7456 #639971 #88B292 #ADCAB4

Accessibility & contrast

On white

3.32

#639971 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.33

#639971 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #639971

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##639971	#FFFFFF	#000000	##000000
##639971	1.00	3.32	6.33	6.33
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.33	21.00	1.00	1.00
##000000	6.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99916F

Deuteranopia (green-blind)

#918B73

Tritanopia (blue-blind)

#5A978E

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #639971;
/* rgb */ color: rgb(99, 153, 113);
/* oklch */ color: oklch(63.4% 0.083 151.7);

Tailwind

colors: {
  custom: {
    50: '#91b79a',
    500: '#639971',
    950: '#000000',
  },
}

SCSS

$custom: #639971;
$custom-light: #91b79a;
$custom-dark: #000000;

JSON

{
  "hex": "#639971",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 113
  },
  "hsl": {
    "h": 135.556,
    "s": 21.429,
    "l": 49.412
  },
  "oklch": {
    "l": 0.63387,
    "c": 0.08316,
    "h": 151.7
  },
  "luminance": 0.26627
}

Semantic roles & 50–950 ramp

primary

#639971

secondary

#B89FB2

accent

#6AA8BE

background

#F9FBF9

surface

#F1F6F2

border

#CBD0CC

text

#0D110E

muted

#7E807E

Preview Lab

Preview with #639971

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

Preview Lab → · Contrast checker → · Palette generator →