#66CA45#66CA45

#66CA45 is a light, vivid green. Relative luminance 0.455; OKLCH L 75.1% C 0.194 H 138.9°. Best body text is #000000 at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#66CA45
RGB	rgb(102, 202, 69)
HSL	hsl(105, 56%, 53%)
HSV	hsv(105, 66%, 79%)
CMYK	cmyk(49.5%, 0%, 65.8%, 20.8%)
CIE-LAB	lab(73.22, -53.16, 55.46)
CIE-LCH	lch(73.22, 76.82, 133.79°)
OKLab	oklab(75.13% -0.1463 0.1276)
OKLCH	oklch(75.13% 0.194 138.9)
XYZ	xyz(27.6732, 45.4935, 12.9520)
Luminance	0.4550 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CA45 #A945CA

analogous

#A8CA45 #66CA45 #45CA66

triadic

#66CA45 #4566CA #CA4566

tetradic

#66CA45 #45A8CA #A945CA #CA6645

square

#66CA45 #45A8CA #A945CA #CA6645

split-complementary

#66CA45 #6645CA #CA45A8

monochromatic

#357421 #4BA32F #66CA45 #8DD875 #B4E5A4

Accessibility & contrast

On white

2.08

#66CA45 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.10

#66CA45 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CA45

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CA45	#FFFFFF	#000000	##000000
##66CA45	1.00	2.08	10.10	10.10
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.10	21.00	1.00	1.00
##000000	10.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B933

Deuteranopia (green-blind)

#C3B151

Tritanopia (blue-blind)

#5EC3AF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66ca45;
/* rgb */ color: rgb(102, 202, 69);
/* oklch */ color: oklch(75.1% 0.194 138.9);

Tailwind

colors: {
  custom: {
    50: '#9adb7f',
    500: '#66ca45',
    950: '#000000',
  },
}

SCSS

$custom: #66ca45;
$custom-light: #9adb7f;
$custom-dark: #000000;

JSON

{
  "hex": "#66ca45",
  "rgb": {
    "r": 102,
    "g": 202,
    "b": 69
  },
  "hsl": {
    "h": 105.113,
    "s": 55.649,
    "l": 53.137
  },
  "oklch": {
    "l": 0.75132,
    "c": 0.19411,
    "h": 138.9
  },
  "luminance": 0.45496
}

Semantic roles & 50–950 ramp

primary

#66CA45

secondary

#C499D2

accent

#49DFBA

background

#FAFDF8

surface

#F3FBEF

border

#CDD4CA

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CA45

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

Preview Lab → · Contrast checker → · Palette generator →