#66B52F#66B52F

#66B52F is a light, vivid yellow-green. Relative luminance 0.361; OKLCH L 69.6% C 0.182 H 135.4°. Best body text is #000000 at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#66B52F
RGB	rgb(102, 181, 47)
HSL	hsl(95, 59%, 45%)
HSV	hsv(95, 74%, 71%)
CMYK	cmyk(43.6%, 0%, 74%, 29%)
CIE-LAB	lab(66.58, -46.56, 57.01)
CIE-LCH	lch(66.58, 73.61, 129.24°)
OKLab	oklab(69.63% -0.1299 0.128)
OKLCH	oklch(69.63% 0.182 135.4)
XYZ	xyz(22.5159, 36.0765, 8.4658)
Luminance	0.3608 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B52F #7E2FB5

analogous

#A9B52F #66B52F #2FB53B

triadic

#66B52F #2F66B5 #B52F66

tetradic

#66B52F #2FA9B5 #7E2FB5 #B53B2F

square

#66B52F #2FA9B5 #7E2FB5 #B53B2F

split-complementary

#66B52F #3B2FB5 #B52FA9

monochromatic

#2F5416 #4B8422 #66B52F #85D150 #A7DE80

Accessibility & contrast

On white

2.56

#66B52F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.22

#66B52F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B52F

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B52F	#FFFFFF	#000000	##000000
##66B52F	1.00	2.56	8.22	8.22
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.22	21.00	1.00	1.00
##000000	8.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA614

Deuteranopia (green-blind)

#B1A03C

Tritanopia (blue-blind)

#64AE9B

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #66b52f;
/* rgb */ color: rgb(102, 181, 47);
/* oklch */ color: oklch(69.6% 0.182 135.4);

Tailwind

colors: {
  custom: {
    50: '#98cc71',
    500: '#66b52f',
    950: '#000000',
  },
}

SCSS

$custom: #66b52f;
$custom-light: #98cc71;
$custom-dark: #000000;

JSON

{
  "hex": "#66b52f",
  "rgb": {
    "r": 102,
    "g": 181,
    "b": 47
  },
  "hsl": {
    "h": 95.373,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.69632,
    "c": 0.18236,
    "h": 135.4
  },
  "luminance": 0.36078
}

Semantic roles & 50–950 ramp

primary

#66B52F

secondary

#A779C7

accent

#46E2A2

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B52F

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

Preview Lab → · Contrast checker → · Palette generator →