#66DD59#66DD59

#66DD59 is a light, highly saturated green. Relative luminance 0.553; OKLCH L 80.1% C 0.203 H 141.7°. Best body text is #000000 at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#66DD59
RGB	rgb(102, 221, 89)
HSL	hsl(114, 66%, 61%)
HSV	hsv(114, 60%, 87%)
CMYK	cmyk(53.8%, 0%, 59.7%, 13.3%)
CIE-LAB	lab(79.19, -58.39, 53.61)
CIE-LCH	lch(79.19, 79.26, 137.44°)
OKLab	oklab(80.1% -0.1593 0.1257)
OKLCH	oklch(80.1% 0.203 141.7)
XYZ	xyz(33.1375, 55.2562, 18.3685)
Luminance	0.5526 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DD59 #D059DD

analogous

#A8DD59 #66DD59 #59DD8E

triadic

#66DD59 #5966DD #DD5966

tetradic

#66DD59 #59A8DD #D059DD #DD8E59

square

#66DD59 #59A8DD #D059DD #DD8E59

split-complementary

#66DD59 #8E59DD #DD59A8

monochromatic

#2C9C20 #3ACF2A #66DD59 #95E78C #C4F2BF

Accessibility & contrast

On white

1.74

#66DD59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.05

#66DD59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DD59

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DD59	#FFFFFF	#000000	##000000
##66DD59	1.00	1.74	12.05	12.05
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.05	21.00	1.00	1.00
##000000	12.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2CA4B

Deuteranopia (green-blind)

#D3C064

Tritanopia (blue-blind)

#56D7C1

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #66dd59;
/* rgb */ color: rgb(102, 221, 89);
/* oklch */ color: oklch(80.1% 0.203 141.7);

Tailwind

colors: {
  custom: {
    50: '#9ce88c',
    500: '#66dd59',
    950: '#000000',
  },
}

SCSS

$custom: #66dd59;
$custom-light: #9ce88c;
$custom-dark: #000000;

JSON

{
  "hex": "#66dd59",
  "rgb": {
    "r": 102,
    "g": 221,
    "b": 89
  },
  "hsl": {
    "h": 114.091,
    "s": 66,
    "l": 60.784
  },
  "oklch": {
    "l": 0.80102,
    "c": 0.20293,
    "h": 141.7
  },
  "luminance": 0.55259
}

Semantic roles & 50–950 ramp

primary

#66DD59

secondary

#963BA0

accent

#18CEBC

background

#FCFEFC

surface

#F6FDF4

border

#D0D5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66DD59

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

Preview Lab → · Contrast checker → · Palette generator →