#66FB91#66FB91

#66FB91 is a very light, vivid green. Relative luminance 0.739; OKLCH L 88.3% C 0.193 H 150.0°. Best body text is #000000 at 15.77:1 contrast (WCAG AA passes).

Color values

HEX	#66FB91
RGB	rgb(102, 251, 145)
HSL	hsl(137, 95%, 69%)
HSV	hsv(137, 59%, 98%)
CMYK	cmyk(59.4%, 0%, 42.2%, 1.6%)
CIE-LAB	lab(88.86, -62.02, 39.16)
CIE-LCH	lch(88.86, 73.35, 147.73°)
OKLab	oklab(88.28% -0.1676 0.0966)
OKLCH	oklch(88.28% 0.193 150)
XYZ	xyz(45.0842, 73.8591, 38.6629)
Luminance	0.7386 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FB91 #FB66D0

analogous

#86FB66 #66FB91 #66FBDB

triadic

#66FB91 #9166FB #FB9166

tetradic

#66FB91 #6686FB #FB66D0 #FBDB66

square

#66FB91 #6686FB #FB66D0 #FBDB66

split-complementary

#66FB91 #DB66FB #FB6686

monochromatic

#06E145 #2AF966 #66FB91 #A2FDBC #DDFEE7

Accessibility & contrast

On white

1.33

#66FB91 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.77

#66FB91 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FB91

15.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FB91	#FFFFFF	#000000	##000000
##66FB91	1.00	1.33	15.77	15.77
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.77	21.00	1.00	1.00
##000000	15.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FCE789

Deuteranopia (green-blind)

#E9DA98

Tritanopia (blue-blind)

#3AF7E1

Achromatopsia (no color)

#DFDFDF

Design tokens & code

CSS

--color: #66fb91;
/* rgb */ color: rgb(102, 251, 145);
/* oklch */ color: oklch(88.3% 0.193 150.0);

Tailwind

colors: {
  custom: {
    50: '#9efeb2',
    500: '#66fb91',
    950: '#000000',
  },
}

SCSS

$custom: #66fb91;
$custom-light: #9efeb2;
$custom-dark: #000000;

JSON

{
  "hex": "#66fb91",
  "rgb": {
    "r": 102,
    "g": 251,
    "b": 145
  },
  "hsl": {
    "h": 137.315,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.88277,
    "c": 0.19349,
    "h": 150
  },
  "luminance": 0.73863
}

Semantic roles & 50–950 ramp

primary

#66FB91

secondary

#D530A6

accent

#00A3E6

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#101811

muted

#808681

Preview Lab

Preview with #66FB91

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

Preview Lab → · Contrast checker → · Palette generator →