#66AC2B#66AC2B

#66AC2B is a light, vivid yellow-green. Relative luminance 0.325; OKLCH L 67.3% C 0.174 H 134.2°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#66AC2B
RGB	rgb(102, 172, 43)
HSL	hsl(93, 60%, 42%)
HSV	hsv(93, 75%, 67%)
CMYK	cmyk(40.7%, 0%, 75%, 32.5%)
CIE-LAB	lab(63.76, -43.11, 55.64)
CIE-LCH	lch(63.76, 70.38, 127.77°)
OKLab	oklab(67.31% -0.1209 0.1245)
OKLCH	oklch(67.31% 0.174 134.2)
XYZ	xyz(20.6677, 32.5032, 7.4698)
Luminance	0.3250 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AC2B #712BAC

analogous

#A7AC2B #66AC2B #2BAC30

triadic

#66AC2B #2B66AC #AC2B66

tetradic

#66AC2B #2BA7AC #712BAC #AC302B

square

#66AC2B #2BA7AC #712BAC #AC302B

split-complementary

#66AC2B #302BAC #AC2BA7

monochromatic

#2C4A13 #497B1F #66AC2B #84D044 #A4DC75

Accessibility & contrast

On white

2.80

#66AC2B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#66AC2B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AC2B

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AC2B	#FFFFFF	#000000	##000000
##66AC2B	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)

#B39E10

Deuteranopia (green-blind)

#A99838

Tritanopia (blue-blind)

#65A593

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #66ac2b;
/* rgb */ color: rgb(102, 172, 43);
/* oklch */ color: oklch(67.3% 0.174 134.2);

Tailwind

colors: {
  custom: {
    50: '#97c56e',
    500: '#66ac2b',
    950: '#000000',
  },
}

SCSS

$custom: #66ac2b;
$custom-light: #97c56e;
$custom-dark: #000000;

JSON

{
  "hex": "#66ac2b",
  "rgb": {
    "r": 102,
    "g": 172,
    "b": 43
  },
  "hsl": {
    "h": 92.558,
    "s": 60,
    "l": 42.157
  },
  "oklch": {
    "l": 0.67312,
    "c": 0.17352,
    "h": 134.2
  },
  "luminance": 0.32504
}

Semantic roles & 50–950 ramp

primary

#66AC2B

secondary

#9D6FC4

accent

#45E39B

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66AC2B

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

Preview Lab → · Contrast checker → · Palette generator →