#66CA54#66CA54

#66CA54 is a light, vivid green. Relative luminance 0.457; OKLCH L 75.3% C 0.183 H 140.7°. Best body text is #000000 at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#66CA54
RGB	rgb(102, 202, 84)
HSL	hsl(111, 53%, 56%)
HSV	hsv(111, 58%, 79%)
CMYK	cmyk(49.5%, 0%, 58.4%, 20.8%)
CIE-LAB	lab(73.35, -51.66, 49.13)
CIE-LCH	lch(73.35, 71.30, 136.44°)
OKLab	oklab(75.29% -0.1413 0.1156)
OKLCH	oklch(75.29% 0.183 140.7)
XYZ	xyz(28.1990, 45.7039, 15.7216)
Luminance	0.4571 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CA54 #B854CA

analogous

#A1CA54 #66CA54 #54CA7D

triadic

#66CA54 #5466CA #CA5466

tetradic

#66CA54 #54A1CA #B854CA #CA7D54

square

#66CA54 #54A1CA #B854CA #CA7D54

split-complementary

#66CA54 #7D54CA #CA54A1

monochromatic

#347D27 #47AC35 #66CA54 #90D883 #BAE7B1

Accessibility & contrast

On white

2.07

#66CA54 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.14

#66CA54 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CA54

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CA54	#FFFFFF	#000000	##000000
##66CA54	1.00	2.07	10.14	10.14
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.14	21.00	1.00	1.00
##000000	10.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFBA48

Deuteranopia (green-blind)

#C2B15D

Tritanopia (blue-blind)

#5BC4B0

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66ca54;
/* rgb */ color: rgb(102, 202, 84);
/* oklch */ color: oklch(75.3% 0.183 140.7);

Tailwind

colors: {
  custom: {
    50: '#99db88',
    500: '#66ca54',
    950: '#000000',
  },
}

SCSS

$custom: #66ca54;
$custom-light: #99db88;
$custom-dark: #000000;

JSON

{
  "hex": "#66ca54",
  "rgb": {
    "r": 102,
    "g": 202,
    "b": 84
  },
  "hsl": {
    "h": 110.847,
    "s": 52.679,
    "l": 56.078
  },
  "oklch": {
    "l": 0.75289,
    "c": 0.1826,
    "h": 140.7
  },
  "luminance": 0.45706
}

Semantic roles & 50–950 ramp

primary

#66CA54

secondary

#CEA5D5

accent

#4CDCC6

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0F150C

muted

#7E837D

Preview Lab

Preview with #66CA54

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

Preview Lab → · Contrast checker → · Palette generator →