#66AC2A#66AC2A

#66AC2A is a light, vivid yellow-green. Relative luminance 0.325; OKLCH L 67.3% C 0.174 H 134.1°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#66AC2A
RGB	rgb(102, 172, 42)
HSL	hsl(92, 61%, 42%)
HSV	hsv(92, 76%, 67%)
CMYK	cmyk(40.7%, 0%, 75.6%, 32.5%)
CIE-LAB	lab(63.75, -43.17, 55.98)
CIE-LCH	lch(63.75, 70.69, 127.64°)
OKLab	oklab(67.31% -0.1211 0.1251)
OKLCH	oklch(67.31% 0.174 134.1)
XYZ	xyz(20.6496, 32.4959, 7.3743)
Luminance	0.3250 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AC2A #702AAC

analogous

#A7AC2A #66AC2A #2AAC2F

triadic

#66AC2A #2A66AC #AC2A66

tetradic

#66AC2A #2AA7AC #702AAC #AC2F2A

square

#66AC2A #2AA7AC #702AAC #AC2F2A

split-complementary

#66AC2A #2F2AAC #AC2AA7

monochromatic

#2C4A12 #497B1E #66AC2A #84D142 #A4DD73

Accessibility & contrast

On white

2.80

#66AC2A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#66AC2A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AC2A

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AC2A	#FFFFFF	#000000	##000000
##66AC2A	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B39E0D

Deuteranopia (green-blind)

#A99837

Tritanopia (blue-blind)

#65A593

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #66ac2a;
/* rgb */ color: rgb(102, 172, 42);
/* oklch */ color: oklch(67.3% 0.174 134.1);

Tailwind

colors: {
  custom: {
    50: '#97c56d',
    500: '#66ac2a',
    950: '#000000',
  },
}

SCSS

$custom: #66ac2a;
$custom-light: #97c56d;
$custom-dark: #000000;

JSON

{
  "hex": "#66ac2a",
  "rgb": {
    "r": 102,
    "g": 172,
    "b": 42
  },
  "hsl": {
    "h": 92.308,
    "s": 60.748,
    "l": 41.961
  },
  "oklch": {
    "l": 0.67305,
    "c": 0.17409,
    "h": 134.1
  },
  "luminance": 0.32497
}

Semantic roles & 50–950 ramp

primary

#66AC2A

secondary

#9C6DC4

accent

#44E49A

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66AC2A

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

Preview Lab → · Contrast checker → · Palette generator →