#66AE33#66AE33

#66AE33 is a light, vivid yellow-green. Relative luminance 0.333; OKLCH L 67.9% C 0.171 H 135.0°. Best body text is #000000 at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#66AE33
RGB	rgb(102, 174, 51)
HSL	hsl(95, 55%, 44%)
HSV	hsv(95, 71%, 68%)
CMYK	cmyk(41.4%, 0%, 70.7%, 31.8%)
CIE-LAB	lab(64.43, -43.40, 53.37)
CIE-LCH	lch(64.43, 68.79, 129.12°)
OKLab	oklab(67.88% -0.1211 0.1209)
OKLCH	oklch(67.88% 0.171 135)
XYZ	xyz(21.2126, 33.3348, 8.4479)
Luminance	0.3334 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AE33 #7B33AE

analogous

#A4AE33 #66AE33 #33AE3E

triadic

#66AE33 #3366AE #AE3366

tetradic

#66AE33 #33A4AE #7B33AE #AE3E33

square

#66AE33 #33A4AE #7B33AE #AE3E33

split-complementary

#66AE33 #3E33AE #AE33A4

monochromatic

#2F4F17 #4A7F25 #66AE33 #85CC52 #A6DA81

Accessibility & contrast

On white

2.74

#66AE33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.67

#66AE33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AE33

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AE33	#FFFFFF	#000000	##000000
##66AE33	1.00	2.74	7.67	7.67
#FFFFFF	2.74	1.00	21.00	21.00
#000000	7.67	21.00	1.00	1.00
##000000	7.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A01F

Deuteranopia (green-blind)

#AB9A3E

Tritanopia (blue-blind)

#64A796

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #66ae33;
/* rgb */ color: rgb(102, 174, 51);
/* oklch */ color: oklch(67.9% 0.171 135.0);

Tailwind

colors: {
  custom: {
    50: '#97c772',
    500: '#66ae33',
    950: '#000000',
  },
}

SCSS

$custom: #66ae33;
$custom-light: #97c772;
$custom-dark: #000000;

JSON

{
  "hex": "#66ae33",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 51
  },
  "hsl": {
    "h": 95.122,
    "s": 54.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.67881,
    "c": 0.17111,
    "h": 135
  },
  "luminance": 0.33336
}

Semantic roles & 50–950 ramp

primary

#66AE33

secondary

#A579C3

accent

#4ADEA1

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66AE33

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

Preview Lab → · Contrast checker → · Palette generator →