#66AF33#66AF33

#66AF33 is a light, vivid yellow-green. Relative luminance 0.337; OKLCH L 68.1% C 0.172 H 135.1°. Best body text is #000000 at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#66AF33
RGB	rgb(102, 175, 51)
HSL	hsl(95, 55%, 44%)
HSV	hsv(95, 71%, 69%)
CMYK	cmyk(41.7%, 0%, 70.9%, 31.4%)
CIE-LAB	lab(64.74, -43.82, 53.69)
CIE-LCH	lch(64.74, 69.30, 129.22°)
OKLab	oklab(68.14% -0.1222 0.1216)
OKLCH	oklch(68.14% 0.172 135.1)
XYZ	xyz(21.4065, 33.7226, 8.5125)
Luminance	0.3372 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AF33 #7C33AF

analogous

#A4AF33 #66AF33 #33AF3E

triadic

#66AF33 #3366AF #AF3366

tetradic

#66AF33 #33A4AF #7C33AF #AF3E33

square

#66AF33 #33A4AF #7C33AF #AF3E33

split-complementary

#66AF33 #3E33AF #AF33A4

monochromatic

#2F5017 #4A8025 #66AF33 #85CD52 #A6DB82

Accessibility & contrast

On white

2.71

#66AF33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.74

#66AF33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AF33

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AF33	#FFFFFF	#000000	##000000
##66AF33	1.00	2.71	7.74	7.74
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.74	21.00	1.00	1.00
##000000	7.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A11F

Deuteranopia (green-blind)

#AC9B3E

Tritanopia (blue-blind)

#64A896

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #66af33;
/* rgb */ color: rgb(102, 175, 51);
/* oklch */ color: oklch(68.1% 0.172 135.1);

Tailwind

colors: {
  custom: {
    50: '#97c772',
    500: '#66af33',
    950: '#000000',
  },
}

SCSS

$custom: #66af33;
$custom-light: #97c772;
$custom-dark: #000000;

JSON

{
  "hex": "#66af33",
  "rgb": {
    "r": 102,
    "g": 175,
    "b": 51
  },
  "hsl": {
    "h": 95.323,
    "s": 54.867,
    "l": 44.314
  },
  "oklch": {
    "l": 0.68135,
    "c": 0.17239,
    "h": 135.1
  },
  "luminance": 0.33724
}

Semantic roles & 50–950 ramp

primary

#66AF33

secondary

#A57AC4

accent

#4ADEA1

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66AF33

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

Preview Lab → · Contrast checker → · Palette generator →