#66EA3C#66EA3C

#66EA3C is a very light, highly saturated green. Relative luminance 0.620; OKLCH L 83.1% C 0.237 H 139.4°. Best body text is #000000 at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#66EA3C
RGB	rgb(102, 234, 60)
HSL	hsl(106, 81%, 58%)
HSV	hsv(106, 74%, 92%)
CMYK	cmyk(56.4%, 0%, 74.4%, 8.2%)
CIE-LAB	lab(82.91, -65.53, 68.74)
CIE-LCH	lch(82.91, 94.96, 133.63°)
OKLab	oklab(83.1% -0.1803 0.1543)
OKLCH	oklch(83.1% 0.237 139.4)
XYZ	xyz(35.7164, 61.9936, 14.3579)
Luminance	0.6200 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EA3C #C03CEA

analogous

#BDEA3C #66EA3C #3CEA69

triadic

#66EA3C #3C66EA #EA3C66

tetradic

#66EA3C #3CBDEA #C03CEA #EA693C

square

#66EA3C #3CBDEA #C03CEA #EA693C

split-complementary

#66EA3C #693CEA #EA3CBD

monochromatic

#329B11 #44D217 #66EA3C #91F073 #BDF6AA

Accessibility & contrast

On white

1.57

#66EA3C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.40

#66EA3C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EA3C

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EA3C	#FFFFFF	#000000	##000000
##66EA3C	1.00	1.57	13.40	13.40
#FFFFFF	1.57	1.00	21.00	21.00
#000000	13.40	21.00	1.00	1.00
##000000	13.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1D515

Deuteranopia (green-blind)

#E0CA4F

Tritanopia (blue-blind)

#57E2C9

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #66ea3c;
/* rgb */ color: rgb(102, 234, 60);
/* oklch */ color: oklch(83.1% 0.237 139.4);

Tailwind

colors: {
  custom: {
    50: '#9ff27d',
    500: '#66ea3c',
    950: '#000000',
  },
}

SCSS

$custom: #66ea3c;
$custom-light: #9ff27d;
$custom-dark: #000000;

JSON

{
  "hex": "#66ea3c",
  "rgb": {
    "r": 102,
    "g": 234,
    "b": 60
  },
  "hsl": {
    "h": 105.517,
    "s": 80.556,
    "l": 57.647
  },
  "oklch": {
    "l": 0.831,
    "c": 0.23725,
    "h": 139.4
  },
  "luminance": 0.61997
}

Semantic roles & 50–950 ramp

primary

#66EA3C

secondary

#832C9E

accent

#31F7C7

background

#FDFFFB

surface

#F7FEF2

border

#D0D6CC

text

#10170B

muted

#81857E

Preview Lab

Preview with #66EA3C

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

Preview Lab → · Contrast checker → · Palette generator →