#66E459#66E459

#66E459 is a light, highly saturated green. Relative luminance 0.590; OKLCH L 81.8% C 0.212 H 141.8°. Best body text is #000000 at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#66E459
RGB	rgb(102, 228, 89)
HSL	hsl(114, 72%, 62%)
HSV	hsv(114, 61%, 89%)
CMYK	cmyk(55.3%, 0%, 61%, 10.6%)
CIE-LAB	lab(81.31, -60.97, 56.02)
CIE-LCH	lch(81.31, 82.79, 137.42°)
OKLab	oklab(81.85% -0.1663 0.1309)
OKLCH	oklch(81.85% 0.212 141.8)
XYZ	xyz(35.0243, 59.0299, 18.9975)
Luminance	0.5903 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E459 #D759E4

analogous

#ACE459 #66E459 #59E491

triadic

#66E459 #5966E4 #E45966

tetradic

#66E459 #59ACE4 #D759E4 #E49159

square

#66E459 #59ACE4 #D759E4 #E49159

split-complementary

#66E459 #9159E4 #E459AC

monochromatic

#28A71B #35DB24 #66E459 #97ED8E #C7F5C2

Accessibility & contrast

On white

1.64

#66E459 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.81

#66E459 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E459

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E459	#FFFFFF	#000000	##000000
##66E459	1.00	1.64	12.81	12.81
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.81	21.00	1.00	1.00
##000000	12.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D149

Deuteranopia (green-blind)

#D9C664

Tritanopia (blue-blind)

#54DDC6

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #66e459;
/* rgb */ color: rgb(102, 228, 89);
/* oklch */ color: oklch(81.8% 0.212 141.8);

Tailwind

colors: {
  custom: {
    50: '#9ded8d',
    500: '#66e459',
    950: '#000000',
  },
}

SCSS

$custom: #66e459;
$custom-light: #9ded8d;
$custom-dark: #000000;

JSON

{
  "hex": "#66e459",
  "rgb": {
    "r": 102,
    "g": 228,
    "b": 89
  },
  "hsl": {
    "h": 114.388,
    "s": 72.021,
    "l": 62.157
  },
  "oklch": {
    "l": 0.81847,
    "c": 0.21161,
    "h": 141.8
  },
  "luminance": 0.59033
}

Semantic roles & 50–950 ramp

primary

#66E459

secondary

#9F38A9

accent

#11D4C2

background

#FCFFFC

surface

#F6FEF4

border

#D0D6CE

text

#0F160C

muted

#80857F

Preview Lab

Preview with #66E459

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

Preview Lab → · Contrast checker → · Palette generator →