#66BA2F#66BA2F

#66BA2F is a light, vivid yellow-green. Relative luminance 0.381; OKLCH L 70.9% C 0.188 H 135.9°. Best body text is #000000 at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#66BA2F
RGB	rgb(102, 186, 47)
HSL	hsl(96, 60%, 46%)
HSV	hsv(96, 75%, 73%)
CMYK	cmyk(45.2%, 0%, 74.7%, 27.1%)
CIE-LAB	lab(68.13, -48.58, 58.54)
CIE-LCH	lch(68.13, 76.07, 129.68°)
OKLab	oklab(70.9% -0.1354 0.1312)
OKLCH	oklch(70.9% 0.188 135.9)
XYZ	xyz(23.5509, 38.1464, 8.8108)
Luminance	0.3815 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BA2F #832FBA

analogous

#ABBA2F #66BA2F #2FBA3D

triadic

#66BA2F #2F66BA #BA2F66

tetradic

#66BA2F #2FABBA #832FBA #BA3D2F

square

#66BA2F #2FABBA #832FBA #BA3D2F

split-complementary

#66BA2F #3D2FBA #BA2FAB

monochromatic

#305816 #4B8923 #66BA2F #86D353 #A8E084

Accessibility & contrast

On white

2.43

#66BA2F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.63

#66BA2F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BA2F

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BA2F	#FFFFFF	#000000	##000000
##66BA2F	1.00	2.43	8.63	8.63
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.63	21.00	1.00	1.00
##000000	8.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AA11

Deuteranopia (green-blind)

#B5A43D

Tritanopia (blue-blind)

#63B39F

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #66ba2f;
/* rgb */ color: rgb(102, 186, 47);
/* oklch */ color: oklch(70.9% 0.188 135.9);

Tailwind

colors: {
  custom: {
    50: '#99cf71',
    500: '#66ba2f',
    950: '#000000',
  },
}

SCSS

$custom: #66ba2f;
$custom-light: #99cf71;
$custom-dark: #000000;

JSON

{
  "hex": "#66ba2f",
  "rgb": {
    "r": 102,
    "g": 186,
    "b": 47
  },
  "hsl": {
    "h": 96.259,
    "s": 59.657,
    "l": 45.686
  },
  "oklch": {
    "l": 0.70903,
    "c": 0.18848,
    "h": 135.9
  },
  "luminance": 0.38148
}

Semantic roles & 50–950 ramp

primary

#66BA2F

secondary

#AA7CC9

accent

#45E3A4

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1408

muted

#7E827B

Preview Lab

Preview with #66BA2F

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

Preview Lab → · Contrast checker → · Palette generator →