#66C12C#66C12C

#66C12C is a light, vivid yellow-green. Relative luminance 0.411; OKLCH L 72.7% C 0.198 H 136.3°. Best body text is #000000 at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#66C12C
RGB	rgb(102, 193, 44)
HSL	hsl(97, 63%, 46%)
HSV	hsv(97, 77%, 76%)
CMYK	cmyk(47.2%, 0%, 77.2%, 24.3%)
CIE-LAB	lab(70.28, -51.51, 61.61)
CIE-LCH	lch(70.28, 80.31, 129.90°)
OKLab	oklab(72.66% -0.1434 0.1372)
OKLCH	oklch(72.66% 0.198 136.3)
XYZ	xyz(25.0034, 41.1449, 9.0066)
Luminance	0.4115 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C12C #872CC1

analogous

#B1C12C #66C12C #2CC13C

triadic

#66C12C #2C66C1 #C12C66

tetradic

#66C12C #2CB1C1 #872CC1 #C13C2C

square

#66C12C #2CB1C1 #872CC1 #C13C2C

split-complementary

#66C12C #3C2CC1 #C12CB1

monochromatic

#315D15 #4C8F21 #66C12C #86D853 #A9E384

Accessibility & contrast

On white

2.28

#66C12C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.23

#66C12C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C12C

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C12C	#FFFFFF	#000000	##000000
##66C12C	1.00	2.28	9.23	9.23
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.23	21.00	1.00	1.00
##000000	9.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B101

Deuteranopia (green-blind)

#BCA93C

Tritanopia (blue-blind)

#62BAA5

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #66c12c;
/* rgb */ color: rgb(102, 193, 44);
/* oklch */ color: oklch(72.7% 0.198 136.3);

Tailwind

colors: {
  custom: {
    50: '#9ad471',
    500: '#66c12c',
    950: '#000000',
  },
}

SCSS

$custom: #66c12c;
$custom-light: #9ad471;
$custom-dark: #000000;

JSON

{
  "hex": "#66c12c",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 44
  },
  "hsl": {
    "h": 96.644,
    "s": 62.869,
    "l": 46.471
  },
  "oklch": {
    "l": 0.72663,
    "c": 0.19846,
    "h": 136.3
  },
  "luminance": 0.41147
}

Semantic roles & 50–950 ramp

primary

#66C12C

secondary

#AD7DCC

accent

#42E6A6

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1408

muted

#7F837B

Preview Lab

Preview with #66C12C

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

Preview Lab → · Contrast checker → · Palette generator →