#66FB9E#66FB9E

#66FB9E is a very light, vivid green. Relative luminance 0.743; OKLCH L 88.5% C 0.182 H 153.0°. Best body text is #000000 at 15.86:1 contrast (WCAG AA passes).

Color values

HEX	#66FB9E
RGB	rgb(102, 251, 158)
HSL	hsl(143, 95%, 69%)
HSV	hsv(143, 59%, 98%)
CMYK	cmyk(59.4%, 0%, 37.1%, 1.6%)
CIE-LAB	lab(89.06, -59.85, 32.99)
CIE-LCH	lch(89.06, 68.34, 151.14°)
OKLab	oklab(88.51% -0.1621 0.0824)
OKLCH	oklch(88.51% 0.182 153)
XYZ	xyz(46.1445, 74.2833, 44.2474)
Luminance	0.7429 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FB9E #FB66C3

analogous

#79FB66 #66FB9E #66FBE8

triadic

#66FB9E #9E66FB #FB9E66

tetradic

#66FB9E #6679FB #FB66C3 #FBE866

square

#66FB9E #6679FB #FB66C3 #FBE866

split-complementary

#66FB9E #E866FB #FB6679

monochromatic

#06E158 #2AF978 #66FB9E #A2FDC4 #DDFEEA

Accessibility & contrast

On white

1.32

#66FB9E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.86

#66FB9E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FB9E

15.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FB9E	#FFFFFF	#000000	##000000
##66FB9E	1.00	1.32	15.86	15.86
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.86	21.00	1.00	1.00
##000000	15.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FBE898

Deuteranopia (green-blind)

#E7DAA4

Tritanopia (blue-blind)

#32F8E3

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #66fb9e;
/* rgb */ color: rgb(102, 251, 158);
/* oklch */ color: oklch(88.5% 0.182 153.0);

Tailwind

colors: {
  custom: {
    50: '#9efebb',
    500: '#66fb9e',
    950: '#000000',
  },
}

SCSS

$custom: #66fb9e;
$custom-light: #9efebb;
$custom-dark: #000000;

JSON

{
  "hex": "#66fb9e",
  "rgb": {
    "r": 102,
    "g": 251,
    "b": 158
  },
  "hsl": {
    "h": 142.55,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.88507,
    "c": 0.18187,
    "h": 153
  },
  "luminance": 0.74288
}

Semantic roles & 50–950 ramp

primary

#66FB9E

secondary

#D53097

accent

#008FE6

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#101812

muted

#808682

Preview Lab

Preview with #66FB9E

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

Preview Lab → · Contrast checker → · Palette generator →