#66BC30#66BC30

#66BC30 is a light, vivid yellow-green. Relative luminance 0.390; OKLCH L 71.4% C 0.190 H 136.1°. Best body text is #000000 at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#66BC30
RGB	rgb(102, 188, 48)
HSL	hsl(97, 59%, 46%)
HSV	hsv(97, 74%, 74%)
CMYK	cmyk(45.7%, 0%, 74.5%, 26.3%)
CIE-LAB	lab(68.75, -49.31, 58.81)
CIE-LCH	lch(68.75, 76.75, 129.98°)
OKLab	oklab(71.42% -0.1373 0.1319)
OKLCH	oklch(71.42% 0.19 136.1)
XYZ	xyz(23.9956, 39.0031, 9.0597)
Luminance	0.3901 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BC30 #8630BC

analogous

#ACBC30 #66BC30 #30BC40

triadic

#66BC30 #3066BC #BC3066

tetradic

#66BC30 #30ACBC #8630BC #BC4030

square

#66BC30 #30ACBC #8630BC #BC4030

split-complementary

#66BC30 #4030BC #BC30AC

monochromatic

#315A17 #4C8B24 #66BC30 #86D455 #A9E086

Accessibility & contrast

On white

2.39

#66BC30 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.80

#66BC30 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BC30

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BC30	#FFFFFF	#000000	##000000
##66BC30	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)

#C3AC13

Deuteranopia (green-blind)

#B7A53E

Tritanopia (blue-blind)

#62B5A1

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bc30;
/* rgb */ color: rgb(102, 188, 48);
/* oklch */ color: oklch(71.4% 0.190 136.1);

Tailwind

colors: {
  custom: {
    50: '#99d172',
    500: '#66bc30',
    950: '#000000',
  },
}

SCSS

$custom: #66bc30;
$custom-light: #99d172;
$custom-dark: #000000;

JSON

{
  "hex": "#66bc30",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 48
  },
  "hsl": {
    "h": 96.857,
    "s": 59.322,
    "l": 46.275
  },
  "oklch": {
    "l": 0.71419,
    "c": 0.19034,
    "h": 136.1
  },
  "luminance": 0.39005
}

Semantic roles & 50–950 ramp

primary

#66BC30

secondary

#AD7ECA

accent

#45E3A6

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1408

muted

#7E827B

Preview Lab

Preview with #66BC30

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

Preview Lab → · Contrast checker → · Palette generator →