#66C734#66C734

#66C734 is a light, highly saturated yellow-green. Relative luminance 0.439; OKLCH L 74.2% C 0.201 H 137.3°. Best body text is #000000 at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#66C734
RGB	rgb(102, 199, 52)
HSL	hsl(100, 59%, 49%)
HSV	hsv(100, 74%, 78%)
CMYK	cmyk(48.7%, 0%, 73.9%, 22%)
CIE-LAB	lab(72.17, -53.33, 60.81)
CIE-LCH	lch(72.17, 80.88, 131.25°)
OKLab	oklab(74.24% -0.1478 0.1366)
OKLCH	oklch(74.24% 0.201 137.3)
XYZ	xyz(26.5219, 43.9177, 10.3276)
Luminance	0.4392 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C734 #9534C7

analogous

#B0C734 #66C734 #34C74C

triadic

#66C734 #3466C7 #C73466

tetradic

#66C734 #34B0C7 #9534C7 #C74C34

square

#66C734 #34B0C7 #9534C7 #C74C34

split-complementary

#66C734 #4C34C7 #C734B0

monochromatic

#34661B #4D9627 #66C734 #8AD662 #AEE393

Accessibility & contrast

On white

2.15

#66C734 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.78

#66C734 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C734

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C734	#FFFFFF	#000000	##000000
##66C734	1.00	2.15	9.78	9.78
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.78	21.00	1.00	1.00
##000000	9.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB616

Deuteranopia (green-blind)

#C1AE43

Tritanopia (blue-blind)

#60C0AB

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #66c734;
/* rgb */ color: rgb(102, 199, 52);
/* oklch */ color: oklch(74.2% 0.201 137.3);

Tailwind

colors: {
  custom: {
    50: '#9ad975',
    500: '#66c734',
    950: '#000000',
  },
}

SCSS

$custom: #66c734;
$custom-light: #9ad975;
$custom-dark: #000000;

JSON

{
  "hex": "#66c734",
  "rgb": {
    "r": 102,
    "g": 199,
    "b": 52
  },
  "hsl": {
    "h": 99.592,
    "s": 58.566,
    "l": 49.216
  },
  "oklch": {
    "l": 0.74237,
    "c": 0.2013,
    "h": 137.3
  },
  "luminance": 0.4392
}

Semantic roles & 50–950 ramp

primary

#66C734

secondary

#B689CE

accent

#46E2AD

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #66C734

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

Preview Lab → · Contrast checker → · Palette generator →