#66CD4E#66CD4E

#66CD4E is a light, vivid green. Relative luminance 0.470; OKLCH L 76.0% C 0.191 H 140.0°. Best body text is #000000 at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#66CD4E
RGB	rgb(102, 205, 78)
HSL	hsl(109, 56%, 55%)
HSV	hsv(109, 62%, 80%)
CMYK	cmyk(50.2%, 0%, 62%, 19.6%)
CIE-LAB	lab(74.21, -53.46, 52.77)
CIE-LCH	lch(74.21, 75.12, 135.38°)
OKLab	oklab(75.98% -0.1466 0.1229)
OKLCH	oklch(75.98% 0.191 140)
XYZ	xyz(28.6848, 47.0353, 14.7734)
Luminance	0.4704 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD4E #B54ECD

analogous

#A6CD4E #66CD4E #4ECD75

triadic

#66CD4E #4E66CD #CD4E66

tetradic

#66CD4E #4EA6CD #B54ECD #CD754E

square

#66CD4E #4EA6CD #B54ECD #CD754E

split-complementary

#66CD4E #754ECD #CD4EA6

monochromatic

#347D23 #48AD31 #66CD4E #8FDA7E #B8E8AD

Accessibility & contrast

On white

2.02

#66CD4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.41

#66CD4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD4E

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD4E	#FFFFFF	#000000	##000000
##66CD4E	1.00	2.02	10.41	10.41
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.41	21.00	1.00	1.00
##000000	10.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BC3F

Deuteranopia (green-blind)

#C5B358

Tritanopia (blue-blind)

#5CC7B2

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd4e;
/* rgb */ color: rgb(102, 205, 78);
/* oklch */ color: oklch(76.0% 0.191 140.0);

Tailwind

colors: {
  custom: {
    50: '#9add84',
    500: '#66cd4e',
    950: '#000000',
  },
}

SCSS

$custom: #66cd4e;
$custom-light: #9add84;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd4e",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 78
  },
  "hsl": {
    "h": 108.661,
    "s": 55.947,
    "l": 55.49
  },
  "oklch": {
    "l": 0.75976,
    "c": 0.19125,
    "h": 140
  },
  "luminance": 0.47037
}

Semantic roles & 50–950 ramp

primary

#66CD4E

secondary

#CCA1D6

accent

#49DFC3

background

#F9FDF8

surface

#F2FBEF

border

#CCD4CA

text

#0F150B

muted

#7E837C

Preview Lab

Preview with #66CD4E

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

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