#66C02B#66C02B

#66C02B is a light, vivid yellow-green. Relative luminance 0.407; OKLCH L 72.4% C 0.198 H 136.1°. Best body text is #000000 at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#66C02B
RGB	rgb(102, 192, 43)
HSL	hsl(96, 63%, 46%)
HSV	hsv(96, 78%, 75%)
CMYK	cmyk(46.9%, 0%, 77.6%, 24.7%)
CIE-LAB	lab(69.96, -51.18, 61.63)
CIE-LCH	lch(69.96, 80.11, 129.71°)
OKLab	oklab(72.4% -0.1426 0.137)
OKLCH	oklch(72.4% 0.198 136.1)
XYZ	xyz(24.7645, 40.6969, 8.8354)
Luminance	0.4070 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C02B #852BC0

analogous

#B0C02B #66C02B #2BC03B

triadic

#66C02B #2B66C0 #C02B66

tetradic

#66C02B #2BB0C0 #852BC0 #C03B2B

square

#66C02B #2BB0C0 #852BC0 #C03B2B

split-complementary

#66C02B #3B2BC0 #C02BB0

monochromatic

#315C15 #4B8E20 #66C02B #86D850 #A9E382

Accessibility & contrast

On white

2.30

#66C02B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.14

#66C02B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C02B

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C02B	#FFFFFF	#000000	##000000
##66C02B	1.00	2.30	9.14	9.14
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.14	21.00	1.00	1.00
##000000	9.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7B000

Deuteranopia (green-blind)

#BBA83C

Tritanopia (blue-blind)

#62B9A4

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #66c02b;
/* rgb */ color: rgb(102, 192, 43);
/* oklch */ color: oklch(72.4% 0.198 136.1);

Tailwind

colors: {
  custom: {
    50: '#9ad470',
    500: '#66c02b',
    950: '#000000',
  },
}

SCSS

$custom: #66c02b;
$custom-light: #9ad470;
$custom-dark: #000000;

JSON

{
  "hex": "#66c02b",
  "rgb": {
    "r": 102,
    "g": 192,
    "b": 43
  },
  "hsl": {
    "h": 96.242,
    "s": 63.404,
    "l": 46.078
  },
  "oklch": {
    "l": 0.72403,
    "c": 0.19778,
    "h": 136.1
  },
  "luminance": 0.40698
}

Semantic roles & 50–950 ramp

primary

#66C02B

secondary

#AC7BCC

accent

#41E6A5

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1408

muted

#7F837B

Preview Lab

Preview with #66C02B

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

Preview Lab → · Contrast checker → · Palette generator →