#66CA2E#66CA2E

#66CA2E is a light, highly saturated yellow-green. Relative luminance 0.453; OKLCH L 75.0% C 0.208 H 137.1°. Best body text is #000000 at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#66CA2E
RGB	rgb(102, 202, 46)
HSL	hsl(98, 63%, 49%)
HSV	hsv(98, 77%, 79%)
CMYK	cmyk(49.5%, 0%, 77.2%, 20.8%)
CIE-LAB	lab(73.06, -54.84, 63.65)
CIE-LCH	lch(73.06, 84.01, 130.75°)
OKLab	oklab(74.96% -0.1523 0.1417)
OKLCH	oklch(74.96% 0.208 137.1)
XYZ	xyz(27.0923, 45.2612, 9.8929)
Luminance	0.4526 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CA2E #922ECA

analogous

#B4CA2E #66CA2E #2ECA44

triadic

#66CA2E #2E66CA #CA2E66

tetradic

#66CA2E #2EB4CA #922ECA #CA442E

square

#66CA2E #2EB4CA #922ECA #CA442E

split-complementary

#66CA2E #442ECA #CA2EB4

monochromatic

#346617 #4D9823 #66CA2E #89DA5B #ADE58D

Accessibility & contrast

On white

2.09

#66CA2E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.05

#66CA2E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CA2E

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CA2E	#FFFFFF	#000000	##000000
##66CA2E	1.00	2.09	10.05	10.05
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.05	21.00	1.00	1.00
##000000	10.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1B900

Deuteranopia (green-blind)

#C4B03F

Tritanopia (blue-blind)

#60C3AD

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #66ca2e;
/* rgb */ color: rgb(102, 202, 46);
/* oklch */ color: oklch(75.0% 0.208 137.1);

Tailwind

colors: {
  custom: {
    50: '#9bdb73',
    500: '#66ca2e',
    950: '#000000',
  },
}

SCSS

$custom: #66ca2e;
$custom-light: #9bdb73;
$custom-dark: #000000;

JSON

{
  "hex": "#66ca2e",
  "rgb": {
    "r": 102,
    "g": 202,
    "b": 46
  },
  "hsl": {
    "h": 98.462,
    "s": 62.903,
    "l": 48.627
  },
  "oklch": {
    "l": 0.74958,
    "c": 0.208,
    "h": 137.1
  },
  "luminance": 0.45263
}

Semantic roles & 50–950 ramp

primary

#66CA2E

secondary

#B484CF

accent

#42E6AB

background

#FAFDF7

surface

#F4FBED

border

#CED4C8

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #66CA2E

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

Preview Lab → · Contrast checker → · Palette generator →