#66DB26#66DB26

#66DB26 is a light, highly saturated yellow-green. Relative luminance 0.536; OKLCH L 79.2% C 0.231 H 137.7°. Best body text is #000000 at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#66DB26
RGB	rgb(102, 219, 38)
HSL	hsl(99, 72%, 50%)
HSV	hsv(99, 83%, 86%)
CMYK	cmyk(53.4%, 0%, 82.6%, 14.1%)
CIE-LAB	lab(78.24, -61.45, 70.65)
CIE-LCH	lch(78.24, 93.64, 131.02°)
OKLab	oklab(79.22% -0.1704 0.1553)
OKLCH	oklch(79.22% 0.231 137.7)
XYZ	xyz(31.1598, 53.6253, 10.5421)
Luminance	0.5363 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DB26 #9B26DB

analogous

#C0DB26 #66DB26 #26DB41

triadic

#66DB26 #2666DB #DB2666

tetradic

#66DB26 #26C0DB #9B26DB #DB4126

square

#66DB26 #26C0DB #9B26DB #DB4126

split-complementary

#66DB26 #4126DB #DB26C0

monochromatic

#357313 #4DA81C #66DB26 #8BE45A #B0EC8F

Accessibility & contrast

On white

1.79

#66DB26 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.73

#66DB26 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DB26

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DB26	#FFFFFF	#000000	##000000
##66DB26	1.00	1.79	11.73	11.73
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.73	21.00	1.00	1.00
##000000	11.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C700

Deuteranopia (green-blind)

#D3BE3E

Tritanopia (blue-blind)

#5DD3BB

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66db26;
/* rgb */ color: rgb(102, 219, 38);
/* oklch */ color: oklch(79.2% 0.231 137.7);

Tailwind

colors: {
  custom: {
    50: '#9de772',
    500: '#66db26',
    950: '#000000',
  },
}

SCSS

$custom: #66db26;
$custom-light: #9de772;
$custom-dark: #000000;

JSON

{
  "hex": "#66db26",
  "rgb": {
    "r": 102,
    "g": 219,
    "b": 38
  },
  "hsl": {
    "h": 98.785,
    "s": 71.542,
    "l": 50.392
  },
  "oklch": {
    "l": 0.79215,
    "c": 0.23056,
    "h": 137.7
  },
  "luminance": 0.53628
}

Semantic roles & 50–950 ramp

primary

#66DB26

secondary

#5F297C

accent

#3AEEAE

background

#FCFEFB

surface

#F6FDF1

border

#D0D5CB

text

#101609

muted

#80847D

Preview Lab

Preview with #66DB26

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

Preview Lab → · Contrast checker → · Palette generator →