#66C02F#66C02F

#66C02F is a light, vivid yellow-green. Relative luminance 0.407; OKLCH L 72.4% C 0.196 H 136.4°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#66C02F
RGB	rgb(102, 192, 47)
HSL	hsl(97, 61%, 47%)
HSV	hsv(97, 76%, 75%)
CMYK	cmyk(46.9%, 0%, 75.5%, 24.7%)
CIE-LAB	lab(69.98, -50.94, 60.36)
CIE-LCH	lch(69.98, 78.98, 130.17°)
OKLab	oklab(72.43% -0.1417 0.135)
OKLCH	oklch(72.43% 0.196 136.4)
XYZ	xyz(24.8415, 40.7277, 9.2410)
Luminance	0.4073 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C02F #892FC0

analogous

#AFC02F #66C02F #2FC040

triadic

#66C02F #2F66C0 #C02F66

tetradic

#66C02F #2FAFC0 #892FC0 #C0402F

square

#66C02F #2FAFC0 #892FC0 #C0402F

split-complementary

#66C02F #402FC0 #C02FAF

monochromatic

#325E17 #4C8F23 #66C02F #87D656 #AAE288

Accessibility & contrast

On white

2.30

#66C02F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.15

#66C02F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C02F

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C02F	#FFFFFF	#000000	##000000
##66C02F	1.00	2.30	9.15	9.15
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.15	21.00	1.00	1.00
##000000	9.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7B00D

Deuteranopia (green-blind)

#BBA83E

Tritanopia (blue-blind)

#62B9A4

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #66c02f;
/* rgb */ color: rgb(102, 192, 47);
/* oklch */ color: oklch(72.4% 0.196 136.4);

Tailwind

colors: {
  custom: {
    50: '#9ad472',
    500: '#66c02f',
    950: '#000000',
  },
}

SCSS

$custom: #66c02f;
$custom-light: #9ad472;
$custom-dark: #000000;

JSON

{
  "hex": "#66c02f",
  "rgb": {
    "r": 102,
    "g": 192,
    "b": 47
  },
  "hsl": {
    "h": 97.241,
    "s": 60.669,
    "l": 46.863
  },
  "oklch": {
    "l": 0.72428,
    "c": 0.19571,
    "h": 136.4
  },
  "luminance": 0.40729
}

Semantic roles & 50–950 ramp

primary

#66C02F

secondary

#AF7FCB

accent

#44E4A7

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0F1408

muted

#7E837B

Preview Lab

Preview with #66C02F

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

Preview Lab → · Contrast checker → · Palette generator →