#66BB24#66BB24

#66BB24 is a light, vivid yellow-green. Relative luminance 0.385; OKLCH L 71.1% C 0.195 H 135.3°. Best body text is #000000 at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#66BB24
RGB	rgb(102, 187, 36)
HSL	hsl(94, 68%, 44%)
HSV	hsv(94, 81%, 73%)
CMYK	cmyk(45.5%, 0%, 80.7%, 26.7%)
CIE-LAB	lab(68.38, -49.59, 62.22)
CIE-LCH	lch(68.38, 79.57, 128.56°)
OKLab	oklab(71.09% -0.1388 0.1373)
OKLCH	oklch(71.09% 0.195 135.3)
XYZ	xyz(23.5677, 38.4914, 7.8565)
Luminance	0.3849 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BB24 #7924BB

analogous

#B1BB24 #66BB24 #24BB2D

triadic

#66BB24 #2466BB #BB2466

tetradic

#66BB24 #24B1BB #7924BB #BB2D24

square

#66BB24 #24B1BB #7924BB #BB2D24

split-complementary

#66BB24 #2D24BB #BB24B1

monochromatic

#2E5410 #4A881A #66BB24 #84DB42 #A6E475

Accessibility & contrast

On white

2.41

#66BB24 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.70

#66BB24 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BB24

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BB24	#FFFFFF	#000000	##000000
##66BB24	1.00	2.41	8.70	8.70
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.70	21.00	1.00	1.00
##000000	8.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AB00

Deuteranopia (green-blind)

#B7A436

Tritanopia (blue-blind)

#63B4A0

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66bb24;
/* rgb */ color: rgb(102, 187, 36);
/* oklch */ color: oklch(71.1% 0.195 135.3);

Tailwind

colors: {
  custom: {
    50: '#99d06c',
    500: '#66bb24',
    950: '#000000',
  },
}

SCSS

$custom: #66bb24;
$custom-light: #99d06c;
$custom-dark: #000000;

JSON

{
  "hex": "#66bb24",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 36
  },
  "hsl": {
    "h": 93.775,
    "s": 67.713,
    "l": 43.725
  },
  "oklch": {
    "l": 0.71093,
    "c": 0.19518,
    "h": 135.3
  },
  "luminance": 0.38493
}

Semantic roles & 50–950 ramp

primary

#66BB24

secondary

#A36FCC

accent

#3DEB9F

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0F1408

muted

#7E827A

Preview Lab

Preview with #66BB24

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

Preview Lab → · Contrast checker → · Palette generator →