#66DC3F#66DC3F

#66DC3F is a light, highly saturated green. Relative luminance 0.544; OKLCH L 79.6% C 0.220 H 139.2°. Best body text is #000000 at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#66DC3F
RGB	rgb(102, 220, 63)
HSL	hsl(105, 69%, 55%)
HSV	hsv(105, 71%, 86%)
CMYK	cmyk(53.6%, 0%, 71.4%, 13.7%)
CIE-LAB	lab(78.68, -60.36, 63.48)
CIE-LCH	lch(78.68, 87.60, 133.56°)
OKLab	oklab(79.61% -0.1662 0.1437)
OKLCH	oklch(79.61% 0.22 139.2)
XYZ	xyz(31.9686, 54.3675, 13.5110)
Luminance	0.5437 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DC3F #B53FDC

analogous

#B4DC3F #66DC3F #3FDC67

triadic

#66DC3F #3F66DC #DC3F66

tetradic

#66DC3F #3FB4DC #B53FDC #DC673F

square

#66DC3F #3FB4DC #B53FDC #DC673F

split-complementary

#66DC3F #673FDC #DC3FB4

monochromatic

#348819 #48BC22 #66DC3F #8FE573 #B8EFA7

Accessibility & contrast

On white

1.77

#66DC3F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.87

#66DC3F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DC3F

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DC3F	#FFFFFF	#000000	##000000
##66DC3F	1.00	1.77	11.87	11.87
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.87	21.00	1.00	1.00
##000000	11.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C924

Deuteranopia (green-blind)

#D3BF4F

Tritanopia (blue-blind)

#5AD5BD

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66dc3f;
/* rgb */ color: rgb(102, 220, 63);
/* oklch */ color: oklch(79.6% 0.220 139.2);

Tailwind

colors: {
  custom: {
    50: '#9de87d',
    500: '#66dc3f',
    950: '#000000',
  },
}

SCSS

$custom: #66dc3f;
$custom-light: #9de87d;
$custom-dark: #000000;

JSON

{
  "hex": "#66dc3f",
  "rgb": {
    "r": 102,
    "g": 220,
    "b": 63
  },
  "hsl": {
    "h": 105.096,
    "s": 69.163,
    "l": 55.49
  },
  "oklch": {
    "l": 0.79612,
    "c": 0.21965,
    "h": 139.2
  },
  "luminance": 0.5437
}

Semantic roles & 50–950 ramp

primary

#66DC3F

secondary

#77318E

accent

#3CECC0

background

#FCFEFB

surface

#F6FDF2

border

#D0D5CC

text

#0F160A

muted

#80847D

Preview Lab

Preview with #66DC3F

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

Preview Lab → · Contrast checker → · Palette generator →