#669D37#669D37

#669D37 is a light, vivid yellow-green. Relative luminance 0.272; OKLCH L 63.6% C 0.146 H 133.2°. Best body text is #000000 at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#669D37
RGB	rgb(102, 157, 55)
HSL	hsl(92, 48%, 42%)
HSV	hsv(92, 65%, 62%)
CMYK	cmyk(35%, 0%, 65%, 38.4%)
CIE-LAB	lab(59.17, -35.69, 46.17)
CIE-LCH	lch(59.17, 58.35, 127.70°)
OKLab	oklab(63.6% -0.0998 0.1063)
OKLCH	oklch(63.6% 0.146 133.2)
XYZ	xyz(18.2258, 27.2138, 7.9062)
Luminance	0.2722 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#669D37 #6E379D

analogous

#999D37 #669D37 #379D3B

triadic

#669D37 #37669D #9D3766

tetradic

#669D37 #37999D #6E379D #9D3B37

square

#669D37 #37999D #6E379D #9D3B37

split-complementary

#669D37 #3B379D #9D3799

monochromatic

#2B4217 #497027 #669D37 #84C250 #A4D17D

Accessibility & contrast

On white

3.26

#669D37 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.44

#669D37 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #669D37

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##669D37	#FFFFFF	#000000	##000000
##669D37	1.00	3.26	6.44	6.44
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.44	21.00	1.00	1.00
##000000	6.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3912A

Deuteranopia (green-blind)

#9C8D3F

Tritanopia (blue-blind)

#669788

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #669d37;
/* rgb */ color: rgb(102, 157, 55);
/* oklch */ color: oklch(63.6% 0.146 133.2);

Tailwind

colors: {
  custom: {
    50: '#95ba73',
    500: '#669d37',
    950: '#000000',
  },
}

SCSS

$custom: #669d37;
$custom-light: #95ba73;
$custom-dark: #000000;

JSON

{
  "hex": "#669d37",
  "rgb": {
    "r": 102,
    "g": 157,
    "b": 55
  },
  "hsl": {
    "h": 92.353,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.63595,
    "c": 0.14578,
    "h": 133.2
  },
  "luminance": 0.27215
}

Semantic roles & 50–950 ramp

primary

#669D37

secondary

#9B75BB

accent

#50D899

background

#F9FBF7

surface

#F2F6ED

border

#CCD0C8

text

#0E1108

muted

#7E807B

Preview Lab

Preview with #669D37

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

Preview Lab → · Contrast checker → · Palette generator →