#66BD4E#66BD4E

#66BD4E is a light, vivid green. Relative luminance 0.398; OKLCH L 71.9% C 0.170 H 139.4°. Best body text is #000000 at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#66BD4E
RGB	rgb(102, 189, 78)
HSL	hsl(107, 46%, 52%)
HSV	hsv(107, 59%, 74%)
CMYK	cmyk(46%, 0%, 58.7%, 25.9%)
CIE-LAB	lab(69.30, -47.11, 47.19)
CIE-LCH	lch(69.30, 66.69, 134.95°)
OKLab	oklab(71.95% -0.1293 0.1109)
OKLCH	oklch(71.95% 0.17 139.4)
XYZ	xyz(25.0513, 39.7684, 13.5623)
Luminance	0.3977 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BD4E #A54EBD

analogous

#9EBD4E #66BD4E #4EBD6E

triadic

#66BD4E #4E66BD #BD4E66

tetradic

#66BD4E #4E9EBD #A54EBD #BD6E4E

square

#66BD4E #4E9EBD #A54EBD #BD6E4E

split-complementary

#66BD4E #6E4EBD #BD4E9E

monochromatic

#366927 #4C9638 #66BD4E #8DCE7B #B3DEA7

Accessibility & contrast

On white

2.35

#66BD4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.95

#66BD4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD4E

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BD4E	#FFFFFF	#000000	##000000
##66BD4E	1.00	2.35	8.95	8.95
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.95	21.00	1.00	1.00
##000000	8.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AE42

Deuteranopia (green-blind)

#B6A656

Tritanopia (blue-blind)

#5FB7A5

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #66bd4e;
/* rgb */ color: rgb(102, 189, 78);
/* oklch */ color: oklch(71.9% 0.170 139.4);

Tailwind

colors: {
  custom: {
    50: '#98d183',
    500: '#66bd4e',
    950: '#000000',
  },
}

SCSS

$custom: #66bd4e;
$custom-light: #98d183;
$custom-dark: #000000;

JSON

{
  "hex": "#66bd4e",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 78
  },
  "hsl": {
    "h": 107.027,
    "s": 45.679,
    "l": 52.353
  },
  "oklch": {
    "l": 0.71948,
    "c": 0.17036,
    "h": 139.4
  },
  "luminance": 0.3977
}

Semantic roles & 50–950 ramp

primary

#66BD4E

secondary

#C19BCC

accent

#52D5B9

background

#F9FCF8

surface

#F2F9EF

border

#CCD2CA

text

#0E140B

muted

#7E827C

Preview Lab

Preview with #66BD4E

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

Preview Lab → · Contrast checker → · Palette generator →