#66E597#66E597

#66E597 is a very light, vivid green. Relative luminance 0.611; OKLCH L 83.0% C 0.159 H 154.0°. Best body text is #000000 at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#66E597
RGB	rgb(102, 229, 151)
HSL	hsl(143, 71%, 65%)
HSV	hsv(143, 55%, 90%)
CMYK	cmyk(55.5%, 0%, 34.1%, 10.2%)
CIE-LAB	lab(82.43, -52.46, 27.66)
CIE-LCH	lch(82.43, 59.31, 152.20°)
OKLab	oklab(83.04% -0.1425 0.0696)
OKLCH	oklch(83.04% 0.159 154)
XYZ	xyz(39.0817, 61.0942, 39.0050)
Luminance	0.6110 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E597 #E566B4

analogous

#74E566 #66E597 #66E5D7

triadic

#66E597 #9766E5 #E59766

tetradic

#66E597 #6674E5 #E566B4 #E5D766

square

#66E597 #6674E5 #E566B4 #E5D766

split-complementary

#66E597 #D766E5 #E56674

monochromatic

#1EB257 #32DC73 #66E597 #9AEEBB #CFF7DE

Accessibility & contrast

On white

1.59

#66E597 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.22

#66E597 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E597

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E597	#FFFFFF	#000000	##000000
##66E597	1.00	1.59	13.22	13.22
#FFFFFF	1.59	1.00	21.00	21.00
#000000	13.22	21.00	1.00	1.00
##000000	13.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E5D592

Deuteranopia (green-blind)

#D3C89C

Tritanopia (blue-blind)

#40E3D1

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #66e597;
/* rgb */ color: rgb(102, 229, 151);
/* oklch */ color: oklch(83.0% 0.159 154.0);

Tailwind

colors: {
  custom: {
    50: '#9beeb6',
    500: '#66e597',
    950: '#000000',
  },
}

SCSS

$custom: #66e597;
$custom-light: #9beeb6;
$custom-dark: #000000;

JSON

{
  "hex": "#66e597",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 151
  },
  "hsl": {
    "h": 143.15,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.83036,
    "c": 0.15862,
    "h": 154
  },
  "luminance": 0.61098
}

Semantic roles & 50–950 ramp

primary

#66E597

secondary

#B33C85

accent

#1389D3

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0F1611

muted

#808581

Preview Lab

Preview with #66E597

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

Preview Lab → · Contrast checker → · Palette generator →