#66CA4B#66CA4B

#66CA4B is a light, vivid green. Relative luminance 0.456; OKLCH L 75.2% C 0.190 H 139.6°. Best body text is #000000 at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#66CA4B
RGB	rgb(102, 202, 75)
HSL	hsl(107, 55%, 54%)
HSV	hsv(107, 63%, 79%)
CMYK	cmyk(49.5%, 0%, 62.9%, 20.8%)
CIE-LAB	lab(73.27, -52.60, 53.00)
CIE-LCH	lch(73.27, 74.67, 134.78°)
OKLab	oklab(75.19% -0.1444 0.1231)
OKLCH	oklch(75.19% 0.19 139.6)
XYZ	xyz(27.8689, 45.5718, 13.9829)
Luminance	0.4557 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CA4B #AF4BCA

analogous

#A6CA4B #66CA4B #4BCA70

triadic

#66CA4B #4B66CA #CA4B66

tetradic

#66CA4B #4BA6CA #AF4BCA #CA704B

square

#66CA4B #4BA6CA #AF4BCA #CA704B

split-complementary

#66CA4B #704BCA #CA4BA6

monochromatic

#357723 #4AA731 #66CA4B #8ED87A #B6E6AA

Accessibility & contrast

On white

2.08

#66CA4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.11

#66CA4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CA4B

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CA4B	#FFFFFF	#000000	##000000
##66CA4B	1.00	2.08	10.11	10.11
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.11	21.00	1.00	1.00
##000000	10.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B93C

Deuteranopia (green-blind)

#C2B156

Tritanopia (blue-blind)

#5DC4AF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66ca4b;
/* rgb */ color: rgb(102, 202, 75);
/* oklch */ color: oklch(75.2% 0.190 139.6);

Tailwind

colors: {
  custom: {
    50: '#9adb82',
    500: '#66ca4b',
    950: '#000000',
  },
}

SCSS

$custom: #66ca4b;
$custom-light: #9adb82;
$custom-dark: #000000;

JSON

{
  "hex": "#66ca4b",
  "rgb": {
    "r": 102,
    "g": 202,
    "b": 75
  },
  "hsl": {
    "h": 107.244,
    "s": 54.506,
    "l": 54.314
  },
  "oklch": {
    "l": 0.7519,
    "c": 0.18972,
    "h": 139.6
  },
  "luminance": 0.45574
}

Semantic roles & 50–950 ramp

primary

#66CA4B

secondary

#C89DD3

accent

#4ADEBE

background

#F9FDF8

surface

#F2FBEF

border

#CCD4CA

text

#0F150B

muted

#7E837C

Preview Lab

Preview with #66CA4B

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

Preview Lab → · Contrast checker → · Palette generator →