#66EB5B#66EB5B

#66EB5B is a very light, highly saturated green. Relative luminance 0.630; OKLCH L 83.6% C 0.219 H 142.1°. Best body text is #000000 at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#66EB5B
RGB	rgb(102, 235, 91)
HSL	hsl(115, 78%, 64%)
HSV	hsv(115, 61%, 92%)
CMYK	cmyk(56.6%, 0%, 61.3%, 7.8%)
CIE-LAB	lab(83.44, -63.29, 57.57)
CIE-LCH	lch(83.44, 85.55, 137.71°)
OKLab	oklab(83.61% -0.1725 0.1344)
OKLCH	oklch(83.61% 0.219 142.1)
XYZ	xyz(37.0743, 62.9935, 20.1007)
Luminance	0.6300 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EB5B #E05BEB

analogous

#AEEB5B #66EB5B #5BEB98

triadic

#66EB5B #5B66EB #EB5B66

tetradic

#66EB5B #5BAEEB #E05BEB #EB985B

square

#66EB5B #5BAEEB #E05BEB #EB985B

split-complementary

#66EB5B #985BEB #EB5BAE

monochromatic

#22B516 #33E424 #66EB5B #99F292 #CCF8C8

Accessibility & contrast

On white

1.54

#66EB5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.60

#66EB5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EB5B

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EB5B	#FFFFFF	#000000	##000000
##66EB5B	1.00	1.54	13.60	13.60
#FFFFFF	1.54	1.00	21.00	21.00
#000000	13.60	21.00	1.00	1.00
##000000	13.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0D74B

Deuteranopia (green-blind)

#DFCC67

Tritanopia (blue-blind)

#52E4CC

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #66eb5b;
/* rgb */ color: rgb(102, 235, 91);
/* oklch */ color: oklch(83.6% 0.219 142.1);

Tailwind

colors: {
  custom: {
    50: '#9ef28e',
    500: '#66eb5b',
    950: '#000000',
  },
}

SCSS

$custom: #66eb5b;
$custom-light: #9ef28e;
$custom-dark: #000000;

JSON

{
  "hex": "#66eb5b",
  "rgb": {
    "r": 102,
    "g": 235,
    "b": 91
  },
  "hsl": {
    "h": 115.417,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.83609,
    "c": 0.21865,
    "h": 142.1
  },
  "luminance": 0.62997
}

Semantic roles & 50–950 ramp

primary

#66EB5B

secondary

#AB35B5

accent

#0BDBCB

background

#FCFFFC

surface

#F6FEF4

border

#D0D6CE

text

#10170D

muted

#80857F

Preview Lab

Preview with #66EB5B

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

Preview Lab → · Contrast checker → · Palette generator →