#639978#639978

#639978 is a light, moderate green. Relative luminance 0.268; OKLCH L 63.6% C 0.076 H 156.6°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#639978
RGB	rgb(99, 153, 120)
HSL	hsl(143, 21%, 49%)
HSV	hsv(143, 35%, 60%)
CMYK	cmyk(35.3%, 0%, 21.6%, 40%)
CIE-LAB	lab(58.78, -25.30, 11.77)
CIE-LCH	lch(58.78, 27.90, 155.05°)
OKLab	oklab(63.56% -0.0699 0.0302)
OKLCH	oklch(63.56% 0.076 156.6)
XYZ	xyz(19.9258, 26.7901, 21.8867)
Luminance	0.2679 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#639978 #996384

analogous

#699963 #639978 #639993

triadic

#639978 #786399 #997863

tetradic

#639978 #636999 #996384 #999363

square

#639978 #636999 #996384 #999363

split-complementary

#639978 #936399 #996369

monochromatic

#334F3E #4B745B #639978 #88B298 #ADCAB8

Accessibility & contrast

On white

3.30

#639978 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.36

#639978 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #639978

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##639978	#FFFFFF	#000000	##000000
##639978	1.00	3.30	6.36	6.36
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.36	21.00	1.00	1.00
##000000	6.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#989176

Deuteranopia (green-blind)

#908B7A

Tritanopia (blue-blind)

#589890

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #639978;
/* rgb */ color: rgb(99, 153, 120);
/* oklch */ color: oklch(63.6% 0.076 156.6);

Tailwind

colors: {
  custom: {
    50: '#91b79f',
    500: '#639978',
    950: '#000000',
  },
}

SCSS

$custom: #639978;
$custom-light: #91b79f;
$custom-dark: #000000;

JSON

{
  "hex": "#639978",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 120
  },
  "hsl": {
    "h": 143.333,
    "s": 21.429,
    "l": 49.412
  },
  "oklch": {
    "l": 0.63561,
    "c": 0.07617,
    "h": 156.6
  },
  "luminance": 0.26791
}

Semantic roles & 50–950 ramp

primary

#639978

secondary

#B89FAF

accent

#6A9DBE

background

#F9FBF9

surface

#F1F6F2

border

#CBD0CC

text

#0D110E

muted

#7E807E

Preview Lab

Preview with #639978

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

Preview Lab → · Contrast checker → · Palette generator →