#66C526#66C526

#66C526 is a light, highly saturated yellow-green. Relative luminance 0.429; OKLCH L 73.6% C 0.206 H 136.3°. Best body text is #000000 at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#66C526
RGB	rgb(102, 197, 38)
HSL	hsl(96, 68%, 46%)
HSV	hsv(96, 81%, 77%)
CMYK	cmyk(48.2%, 0%, 80.7%, 22.7%)
CIE-LAB	lab(71.48, -53.37, 64.52)
CIE-LCH	lch(71.48, 83.73, 129.60°)
OKLab	oklab(73.65% -0.1488 0.1424)
OKLCH	oklch(73.65% 0.206 136.3)
XYZ	xyz(25.7949, 42.8955, 8.7538)
Luminance	0.4290 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C526 #8526C5

analogous

#B5C526 #66C526 #26C535

triadic

#66C526 #2666C5 #C52666

tetradic

#66C526 #26B5C5 #8526C5 #C53526

square

#66C526 #26B5C5 #8526C5 #C53526

split-complementary

#66C526 #3526C5 #C526B5

monochromatic

#315E12 #4B921C #66C526 #86DC4C #A9E67F

Accessibility & contrast

On white

2.19

#66C526 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.58

#66C526 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C526

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C526	#FFFFFF	#000000	##000000
##66C526	1.00	2.19	9.58	9.58
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.58	21.00	1.00	1.00
##000000	9.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCB400

Deuteranopia (green-blind)

#C0AC39

Tritanopia (blue-blind)

#61BEA8

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #66c526;
/* rgb */ color: rgb(102, 197, 38);
/* oklch */ color: oklch(73.6% 0.206 136.3);

Tailwind

colors: {
  custom: {
    50: '#9ad76f',
    500: '#66c526',
    950: '#000000',
  },
}

SCSS

$custom: #66c526;
$custom-light: #9ad76f;
$custom-dark: #000000;

JSON

{
  "hex": "#66c526",
  "rgb": {
    "r": 102,
    "g": 197,
    "b": 38
  },
  "hsl": {
    "h": 95.849,
    "s": 67.66,
    "l": 46.078
  },
  "oklch": {
    "l": 0.73646,
    "c": 0.20592,
    "h": 136.3
  },
  "luminance": 0.42897
}

Semantic roles & 50–950 ramp

primary

#66C526

secondary

#AC78CF

accent

#3DEBA5

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1408

muted

#7F837B

Preview Lab

Preview with #66C526

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

Preview Lab → · Contrast checker → · Palette generator →