#66BD26#66BD26

#66BD26 is a light, vivid yellow-green. Relative luminance 0.394; OKLCH L 71.6% C 0.197 H 135.6°. Best body text is #000000 at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#66BD26
RGB	rgb(102, 189, 38)
HSL	hsl(95, 67%, 45%)
HSV	hsv(95, 80%, 74%)
CMYK	cmyk(46%, 0%, 79.9%, 25.9%)
CIE-LAB	lab(69.01, -50.28, 62.23)
CIE-LCH	lch(69.01, 80.00, 128.93°)
OKLab	oklab(71.61% -0.1405 0.1376)
OKLCH	oklch(71.61% 0.197 135.6)
XYZ	xyz(24.0263, 39.3584, 8.1643)
Luminance	0.3936 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BD26 #7D26BD

analogous

#B1BD26 #66BD26 #26BD32

triadic

#66BD26 #2666BD #BD2666

tetradic

#66BD26 #26B1BD #7D26BD #BD3226

square

#66BD26 #26B1BD #7D26BD #BD3226

split-complementary

#66BD26 #3226BD #BD26B1

monochromatic

#2F5712 #4B8A1C #66BD26 #85DA46 #A7E479

Accessibility & contrast

On white

2.37

#66BD26 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.87

#66BD26 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD26

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BD26	#FFFFFF	#000000	##000000
##66BD26	1.00	2.37	8.87	8.87
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.87	21.00	1.00	1.00
##000000	8.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AD00

Deuteranopia (green-blind)

#B9A638

Tritanopia (blue-blind)

#63B6A1

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bd26;
/* rgb */ color: rgb(102, 189, 38);
/* oklch */ color: oklch(71.6% 0.197 135.6);

Tailwind

colors: {
  custom: {
    50: '#9ad16e',
    500: '#66bd26',
    950: '#000000',
  },
}

SCSS

$custom: #66bd26;
$custom-light: #9ad16e;
$custom-dark: #000000;

JSON

{
  "hex": "#66bd26",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 38
  },
  "hsl": {
    "h": 94.57,
    "s": 66.52,
    "l": 44.51
  },
  "oklch": {
    "l": 0.71612,
    "c": 0.19663,
    "h": 135.6
  },
  "luminance": 0.3936
}

Semantic roles & 50–950 ramp

primary

#66BD26

secondary

#A673CC

accent

#3EE9A1

background

#FAFCF7

surface

#F3F9ED

border

#CDD2C8

text

#0F1408

muted

#7F827B

Preview Lab

Preview with #66BD26

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

Preview Lab → · Contrast checker → · Palette generator →