#66EE3D#66EE3D

#66EE3D is a very light, highly saturated green. Relative luminance 0.643; OKLCH L 84.1% C 0.241 H 139.6°. Best body text is #000000 at 13.86:1 contrast (WCAG AA passes).

Color values

HEX	#66EE3D
RGB	rgb(102, 238, 61)
HSL	hsl(106, 84%, 59%)
HSV	hsv(106, 74%, 93%)
CMYK	cmyk(57.1%, 0%, 74.4%, 6.7%)
CIE-LAB	lab(84.13, -66.84, 69.61)
CIE-LCH	lch(84.13, 96.50, 133.84°)
OKLab	oklab(84.11% -0.1837 0.1562)
OKLCH	oklch(84.11% 0.241 139.6)
XYZ	xyz(36.8947, 64.3075, 14.8823)
Luminance	0.6431 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EE3D #C53DEE

analogous

#BEEE3D #66EE3D #3DEE6C

triadic

#66EE3D #3D66EE #EE3D66

tetradic

#66EE3D #3DBEEE #C53DEE #EE6C3D

square

#66EE3D #3DBEEE #C53DEE #EE6C3D

split-complementary

#66EE3D #6C3DEE #EE3DBE

monochromatic

#31A20E #41DB13 #66EE3D #92F375 #BFF8AE

Accessibility & contrast

On white

1.51

#66EE3D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.86

#66EE3D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EE3D

13.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EE3D	#FFFFFF	#000000	##000000
##66EE3D	1.00	1.51	13.86	13.86
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.86	21.00	1.00	1.00
##000000	13.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F5D915

Deuteranopia (green-blind)

#E4CE50

Tritanopia (blue-blind)

#56E6CC

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #66ee3d;
/* rgb */ color: rgb(102, 238, 61);
/* oklch */ color: oklch(84.1% 0.241 139.6);

Tailwind

colors: {
  custom: {
    50: '#9ff57e',
    500: '#66ee3d',
    950: '#000000',
  },
}

SCSS

$custom: #66ee3d;
$custom-light: #9ff57e;
$custom-dark: #000000;

JSON

{
  "hex": "#66ee3d",
  "rgb": {
    "r": 102,
    "g": 238,
    "b": 61
  },
  "hsl": {
    "h": 106.102,
    "s": 83.886,
    "l": 58.627
  },
  "oklch": {
    "l": 0.84106,
    "c": 0.24116,
    "h": 139.6
  },
  "luminance": 0.64311
}

Semantic roles & 50–950 ramp

primary

#66EE3D

secondary

#882BA4

accent

#2EFACB

background

#FDFFFB

surface

#F7FEF2

border

#D0D6CC

text

#10170B

muted

#81857E

Preview Lab

Preview with #66EE3D

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

Preview Lab → · Contrast checker → · Palette generator →