#66DA5E#66DA5E

#66DA5E is a light, vivid green. Relative luminance 0.538; OKLCH L 79.4% C 0.195 H 142.4°. Best body text is #000000 at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#66DA5E
RGB	rgb(102, 218, 94)
HSL	hsl(116, 63%, 61%)
HSV	hsv(116, 57%, 85%)
CMYK	cmyk(53.2%, 0%, 56.9%, 14.5%)
CIE-LAB	lab(78.33, -56.70, 50.39)
CIE-LCH	lch(78.33, 75.86, 138.38°)
OKLab	oklab(79.41% -0.1545 0.1192)
OKLCH	oklch(79.41% 0.195 142.4)
XYZ	xyz(32.5696, 53.7731, 19.2504)
Luminance	0.5378 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DA5E #D25EDA

analogous

#A4DA5E #66DA5E #5EDA94

triadic

#66DA5E #5E66DA #DA5E66

tetradic

#66DA5E #5EA4DA #D25EDA #DA945E

square

#66DA5E #5EA4DA #D25EDA #DA945E

split-complementary

#66DA5E #945EDA #DA5EA4

monochromatic

#2B9A23 #39CC2F #66DA5E #95E590 #C5F1C2

Accessibility & contrast

On white

1.79

#66DA5E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.76

#66DA5E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DA5E

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DA5E	#FFFFFF	#000000	##000000
##66DA5E	1.00	1.79	11.76	11.76
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.76	21.00	1.00	1.00
##000000	11.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC852

Deuteranopia (green-blind)

#CFBE67

Tritanopia (blue-blind)

#56D4BF

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #66da5e;
/* rgb */ color: rgb(102, 218, 94);
/* oklch */ color: oklch(79.4% 0.195 142.4);

Tailwind

colors: {
  custom: {
    50: '#9be68f',
    500: '#66da5e',
    950: '#000000',
  },
}

SCSS

$custom: #66da5e;
$custom-light: #9be68f;
$custom-dark: #000000;

JSON

{
  "hex": "#66da5e",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 94
  },
  "hsl": {
    "h": 116.129,
    "s": 62.626,
    "l": 61.176
  },
  "oklch": {
    "l": 0.79411,
    "c": 0.19511,
    "h": 142.4
  },
  "luminance": 0.53776
}

Semantic roles & 50–950 ramp

primary

#66DA5E

secondary

#983E9E

accent

#1BCABF

background

#FCFEFC

surface

#F5FCF4

border

#CFD5CE

text

#0F160D

muted

#80847F

Preview Lab

Preview with #66DA5E

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

Preview Lab → · Contrast checker → · Palette generator →