#66BC2F#66BC2F

#66BC2F is a light, vivid yellow-green. Relative luminance 0.390; OKLCH L 71.4% C 0.191 H 136.1°. Best body text is #000000 at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#66BC2F
RGB	rgb(102, 188, 47)
HSL	hsl(97, 60%, 46%)
HSV	hsv(97, 75%, 74%)
CMYK	cmyk(45.7%, 0%, 75%, 26.3%)
CIE-LAB	lab(68.75, -49.37, 59.15)
CIE-LCH	lch(68.75, 77.05, 129.85°)
OKLab	oklab(71.41% -0.1375 0.1324)
OKLCH	oklch(71.41% 0.191 136.1)
XYZ	xyz(23.9752, 38.9949, 8.9522)
Luminance	0.3900 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BC2F #852FBC

analogous

#ACBC2F #66BC2F #2FBC3F

triadic

#66BC2F #2F66BC #BC2F66

tetradic

#66BC2F #2FACBC #852FBC #BC3F2F

square

#66BC2F #2FACBC #852FBC #BC3F2F

split-complementary

#66BC2F #3F2FBC #BC2FAC

monochromatic

#315A17 #4B8B23 #66BC2F #86D454 #A9E085

Accessibility & contrast

On white

2.39

#66BC2F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.80

#66BC2F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BC2F

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BC2F	#FFFFFF	#000000	##000000
##66BC2F	1.00	2.39	8.80	8.80
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.80	21.00	1.00	1.00
##000000	8.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AC10

Deuteranopia (green-blind)

#B7A53E

Tritanopia (blue-blind)

#62B5A1

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bc2f;
/* rgb */ color: rgb(102, 188, 47);
/* oklch */ color: oklch(71.4% 0.191 136.1);

Tailwind

colors: {
  custom: {
    50: '#99d172',
    500: '#66bc2f',
    950: '#000000',
  },
}

SCSS

$custom: #66bc2f;
$custom-light: #99d172;
$custom-dark: #000000;

JSON

{
  "hex": "#66bc2f",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 47
  },
  "hsl": {
    "h": 96.596,
    "s": 60,
    "l": 46.078
  },
  "oklch": {
    "l": 0.71412,
    "c": 0.1909,
    "h": 136.1
  },
  "luminance": 0.38996
}

Semantic roles & 50–950 ramp

primary

#66BC2F

secondary

#AC7DCA

accent

#45E3A5

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1408

muted

#7E827B

Preview Lab

Preview with #66BC2F

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

Preview Lab → · Contrast checker → · Palette generator →