#66BC26#66BC26

#66BC26 is a light, vivid yellow-green. Relative luminance 0.389; OKLCH L 71.4% C 0.195 H 135.5°. Best body text is #000000 at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#66BC26
RGB	rgb(102, 188, 38)
HSL	hsl(94, 66%, 44%)
HSV	hsv(94, 80%, 74%)
CMYK	cmyk(45.7%, 0%, 79.8%, 26.3%)
CIE-LAB	lab(68.70, -49.89, 61.95)
CIE-LCH	lch(68.70, 79.53, 128.84°)
OKLab	oklab(71.36% -0.1394 0.137)
OKLCH	oklch(71.36% 0.195 135.5)
XYZ	xyz(23.8120, 38.9297, 8.0928)
Luminance	0.3893 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BC26 #7C26BC

analogous

#B1BC26 #66BC26 #26BC31

triadic

#66BC26 #2666BC #BC2666

tetradic

#66BC26 #26B1BC #7C26BC #BC3126

square

#66BC26 #26B1BC #7C26BC #BC3126

split-complementary

#66BC26 #3126BC #BC26B1

monochromatic

#2F5611 #4A891C #66BC26 #85DA46 #A6E479

Accessibility & contrast

On white

2.39

#66BC26 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.79

#66BC26 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BC26

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BC26	#FFFFFF	#000000	##000000
##66BC26	1.00	2.39	8.79	8.79
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.79	21.00	1.00	1.00
##000000	8.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AC00

Deuteranopia (green-blind)

#B8A537

Tritanopia (blue-blind)

#63B5A1

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bc26;
/* rgb */ color: rgb(102, 188, 38);
/* oklch */ color: oklch(71.4% 0.195 135.5);

Tailwind

colors: {
  custom: {
    50: '#99d16d',
    500: '#66bc26',
    950: '#000000',
  },
}

SCSS

$custom: #66bc26;
$custom-light: #99d16d;
$custom-dark: #000000;

JSON

{
  "hex": "#66bc26",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 38
  },
  "hsl": {
    "h": 94.4,
    "s": 66.372,
    "l": 44.314
  },
  "oklch": {
    "l": 0.71358,
    "c": 0.19545,
    "h": 135.5
  },
  "luminance": 0.38931
}

Semantic roles & 50–950 ramp

primary

#66BC26

secondary

#A572CC

accent

#3FE9A0

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1408

muted

#7E827B

Preview Lab

Preview with #66BC26

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

Preview Lab → · Contrast checker → · Palette generator →