#66EFA0#66EFA0

#66EFA0 is a very light, vivid green. Relative luminance 0.671; OKLCH L 85.6% C 0.164 H 155.2°. Best body text is #000000 at 14.42:1 contrast (WCAG AA passes).

Color values

HEX	#66EFA0
RGB	rgb(102, 239, 160)
HSL	hsl(145, 81%, 67%)
HSV	hsv(145, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 33.1%, 6.3%)
CIE-LAB	lab(85.55, -54.81, 27.28)
CIE-LCH	lch(85.55, 61.22, 153.54°)
OKLab	oklab(85.64% -0.149 0.0687)
OKLCH	oklch(85.64% 0.164 155.2)
XYZ	xyz(42.6876, 67.0918, 43.9513)
Luminance	0.6710 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFA0 #EF66B5

analogous

#71EF66 #66EFA0 #66EFE4

triadic

#66EFA0 #A066EF #EFA066

tetradic

#66EFA0 #6671EF #EF66B5 #EFE466

square

#66EFA0 #6671EF #EF66B5 #EFE466

split-complementary

#66EFA0 #E466EF #EF6671

monochromatic

#15C660 #2FE97E #66EFA0 #9DF5C2 #D5FBE5

Accessibility & contrast

On white

1.46

#66EFA0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.42

#66EFA0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFA0

14.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFA0	#FFFFFF	#000000	##000000
##66EFA0	1.00	1.46	14.42	14.42
#FFFFFF	1.46	1.00	21.00	21.00
#000000	14.42	21.00	1.00	1.00
##000000	14.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EEDE9B

Deuteranopia (green-blind)

#DBD1A5

Tritanopia (blue-blind)

#37EDDA

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #66efa0;
/* rgb */ color: rgb(102, 239, 160);
/* oklch */ color: oklch(85.6% 0.164 155.2);

Tailwind

colors: {
  custom: {
    50: '#9cf5bc',
    500: '#66efa0',
    950: '#000000',
  },
}

SCSS

$custom: #66efa0;
$custom-light: #9cf5bc;
$custom-dark: #000000;

JSON

{
  "hex": "#66efa0",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 160
  },
  "hsl": {
    "h": 145.401,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.85643,
    "c": 0.16411,
    "h": 155.2
  },
  "luminance": 0.67096
}

Semantic roles & 50–950 ramp

primary

#66EFA0

secondary

#C33687

accent

#0883DD

background

#FCFFFD

surface

#F6FEF8

border

#D0D6D1

text

#0F1712

muted

#808582

Preview Lab

Preview with #66EFA0

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

Preview Lab → · Contrast checker → · Palette generator →