#66CE4D#66CE4D

#66CE4D is a light, vivid green. Relative luminance 0.475; OKLCH L 76.2% C 0.193 H 139.9°. Best body text is #000000 at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#66CE4D
RGB	rgb(102, 206, 77)
HSL	hsl(108, 57%, 55%)
HSV	hsv(108, 63%, 81%)
CMYK	cmyk(50.5%, 0%, 62.6%, 19.2%)
CIE-LAB	lab(74.51, -53.95, 53.53)
CIE-LCH	lch(74.51, 76.00, 135.22°)
OKLab	oklab(76.22% -0.1479 0.1244)
OKLCH	oklch(76.22% 0.193 139.9)
XYZ	xyz(28.8892, 47.5010, 14.6660)
Luminance	0.4750 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CE4D #B54DCE

analogous

#A6CE4D #66CE4D #4DCE74

triadic

#66CE4D #4D66CE #CE4D66

tetradic

#66CE4D #4DA6CE #B54DCE #CE744D

square

#66CE4D #4DA6CE #B54DCE #CE744D

split-complementary

#66CE4D #744DCE #CE4DA6

monochromatic

#347E23 #48AE30 #66CE4D #8FDB7D #B8E8AD

Accessibility & contrast

On white

2.00

#66CE4D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.50

#66CE4D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CE4D

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CE4D	#FFFFFF	#000000	##000000
##66CE4D	1.00	2.00	10.50	10.50
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.50	21.00	1.00	1.00
##000000	10.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BD3E

Deuteranopia (green-blind)

#C6B458

Tritanopia (blue-blind)

#5CC8B3

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66ce4d;
/* rgb */ color: rgb(102, 206, 77);
/* oklch */ color: oklch(76.2% 0.193 139.9);

Tailwind

colors: {
  custom: {
    50: '#9ade84',
    500: '#66ce4d',
    950: '#000000',
  },
}

SCSS

$custom: #66ce4d;
$custom-light: #9ade84;
$custom-dark: #000000;

JSON

{
  "hex": "#66ce4d",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 77
  },
  "hsl": {
    "h": 108.372,
    "s": 56.828,
    "l": 55.49
  },
  "oklch": {
    "l": 0.76217,
    "c": 0.19327,
    "h": 139.9
  },
  "luminance": 0.47503
}

Semantic roles & 50–950 ramp

primary

#66CE4D

secondary

#CCA1D6

accent

#48E0C3

background

#FAFDF8

surface

#F3FBEF

border

#CDD4CA

text

#0F150B

muted

#7F837C

Preview Lab

Preview with #66CE4D

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

Preview Lab → · Contrast checker → · Palette generator →