#66BB34#66BB34

#66BB34 is a light, vivid yellow-green. Relative luminance 0.386; OKLCH L 71.2% C 0.187 H 136.4°. Best body text is #000000 at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#66BB34
RGB	rgb(102, 187, 52)
HSL	hsl(98, 56%, 47%)
HSV	hsv(98, 72%, 73%)
CMYK	cmyk(45.5%, 0%, 72.2%, 26.7%)
CIE-LAB	lab(68.47, -48.64, 57.11)
CIE-LCH	lch(68.47, 75.01, 130.42°)
OKLab	oklab(71.19% -0.1352 0.1289)
OKLCH	oklch(71.19% 0.187 136.4)
XYZ	xyz(23.8690, 38.6119, 9.4433)
Luminance	0.3861 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BB34 #8934BB

analogous

#AABB34 #66BB34 #34BB46

triadic

#66BB34 #3466BB #BB3466

tetradic

#66BB34 #34AABB #8934BB #BB4634

square

#66BB34 #34AABB #8934BB #BB4634

split-complementary

#66BB34 #4634BB #BB34AA

monochromatic

#325B19 #4C8B27 #66BB34 #87D15B #AADF8B

Accessibility & contrast

On white

2.41

#66BB34 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.72

#66BB34 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BB34

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BB34	#FFFFFF	#000000	##000000
##66BB34	1.00	2.41	8.72	8.72
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.72	21.00	1.00	1.00
##000000	8.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AB1C

Deuteranopia (green-blind)

#B6A441

Tritanopia (blue-blind)

#62B4A1

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66bb34;
/* rgb */ color: rgb(102, 187, 52);
/* oklch */ color: oklch(71.2% 0.187 136.4);

Tailwind

colors: {
  custom: {
    50: '#99d074',
    500: '#66bb34',
    950: '#000000',
  },
}

SCSS

$custom: #66bb34;
$custom-light: #99d074;
$custom-dark: #000000;

JSON

{
  "hex": "#66bb34",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 52
  },
  "hsl": {
    "h": 97.778,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.71193,
    "c": 0.18677,
    "h": 136.4
  },
  "luminance": 0.38613
}

Semantic roles & 50–950 ramp

primary

#66BB34

secondary

#AF82C9

accent

#48E0A8

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1409

muted

#7E827B

Preview Lab

Preview with #66BB34

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

Preview Lab → · Contrast checker → · Palette generator →