#66AC26#66AC26

#66AC26 is a light, vivid yellow-green. Relative luminance 0.325; OKLCH L 67.3% C 0.176 H 133.8°. Best body text is #000000 at 7.49:1 contrast (WCAG AA passes).

Color values

HEX	#66AC26
RGB	rgb(102, 172, 38)
HSL	hsl(91, 64%, 41%)
HSV	hsv(91, 78%, 67%)
CMYK	cmyk(40.7%, 0%, 77.9%, 32.5%)
CIE-LAB	lab(63.73, -43.41, 57.28)
CIE-LCH	lch(63.73, 71.87, 127.15°)
OKLab	oklab(67.28% -0.122 0.1272)
OKLCH	oklch(67.28% 0.176 133.8)
XYZ	xyz(20.5815, 32.4687, 7.0160)
Luminance	0.3247 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AC26 #6C26AC

analogous

#A9AC26 #66AC26 #26AC29

triadic

#66AC26 #2666AC #AC2666

tetradic

#66AC26 #26A9AC #6C26AC #AC2926

square

#66AC26 #26A9AC #6C26AC #AC2926

split-complementary

#66AC26 #2926AC #AC26A9

monochromatic

#2B4810 #487A1B #66AC26 #84D43B #A4DF6E

Accessibility & contrast

On white

2.80

#66AC26 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.49

#66AC26 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AC26

7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AC26	#FFFFFF	#000000	##000000
##66AC26	1.00	2.80	7.49	7.49
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.49	21.00	1.00	1.00
##000000	7.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B39E00

Deuteranopia (green-blind)

#AA9834

Tritanopia (blue-blind)

#66A593

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #66ac26;
/* rgb */ color: rgb(102, 172, 38);
/* oklch */ color: oklch(67.3% 0.176 133.8);

Tailwind

colors: {
  custom: {
    50: '#98c56b',
    500: '#66ac26',
    950: '#000000',
  },
}

SCSS

$custom: #66ac26;
$custom-light: #98c56b;
$custom-dark: #000000;

JSON

{
  "hex": "#66ac26",
  "rgb": {
    "r": 102,
    "g": 172,
    "b": 38
  },
  "hsl": {
    "h": 91.343,
    "s": 63.81,
    "l": 41.176
  },
  "oklch": {
    "l": 0.6728,
    "c": 0.17625,
    "h": 133.8
  },
  "luminance": 0.3247
}

Semantic roles & 50–950 ramp

primary

#66AC26

secondary

#9968C5

accent

#41E798

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66AC26

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

Preview Lab → · Contrast checker → · Palette generator →