#66CB4C#66CB4C

#66CB4C is a light, vivid green. Relative luminance 0.461; OKLCH L 75.5% C 0.190 H 139.7°. Best body text is #000000 at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#66CB4C
RGB	rgb(102, 203, 76)
HSL	hsl(108, 55%, 55%)
HSV	hsv(108, 63%, 80%)
CMYK	cmyk(49.8%, 0%, 62.6%, 20.4%)
CIE-LAB	lab(73.58, -52.89, 52.93)
CIE-LCH	lch(73.58, 74.82, 134.98°)
OKLab	oklab(75.45% -0.1451 0.123)
OKLCH	oklch(75.45% 0.19 139.7)
XYZ	xyz(28.1388, 46.0564, 14.2431)
Luminance	0.4606 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB4C #B14CCB

analogous

#A5CB4C #66CB4C #4CCB72

triadic

#66CB4C #4C66CB #CB4C66

tetradic

#66CB4C #4CA5CB #B14CCB #CB724C

square

#66CB4C #4CA5CB #B14CCB #CB724C

split-complementary

#66CB4C #724CCB #CB4CA5

monochromatic

#357923 #4AA931 #66CB4C #8FD97B #B7E7AB

Accessibility & contrast

On white

2.06

#66CB4C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.21

#66CB4C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB4C

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB4C	#FFFFFF	#000000	##000000
##66CB4C	1.00	2.06	10.21	10.21
#FFFFFF	2.06	1.00	21.00	21.00
#000000	10.21	21.00	1.00	1.00
##000000	10.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0BA3D

Deuteranopia (green-blind)

#C3B156

Tritanopia (blue-blind)

#5CC5B0

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cb4c;
/* rgb */ color: rgb(102, 203, 76);
/* oklch */ color: oklch(75.5% 0.190 139.7);

Tailwind

colors: {
  custom: {
    50: '#9adb83',
    500: '#66cb4c',
    950: '#000000',
  },
}

SCSS

$custom: #66cb4c;
$custom-light: #9adb83;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb4c",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 76
  },
  "hsl": {
    "h": 107.717,
    "s": 54.978,
    "l": 54.706
  },
  "oklch": {
    "l": 0.75452,
    "c": 0.19023,
    "h": 139.7
  },
  "luminance": 0.46058
}

Semantic roles & 50–950 ramp

primary

#66CB4C

secondary

#C99FD4

accent

#49DEC0

background

#F9FDF8

surface

#F2FBEF

border

#CCD4CA

text

#0F150B

muted

#7E837C

Preview Lab

Preview with #66CB4C

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

Preview Lab → · Contrast checker → · Palette generator →