#66BB2E#66BB2E

#66BB2E is a light, vivid yellow-green. Relative luminance 0.386; OKLCH L 71.2% C 0.190 H 135.9°. Best body text is #000000 at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#66BB2E
RGB	rgb(102, 187, 46)
HSL	hsl(96, 61%, 46%)
HSV	hsv(96, 75%, 73%)
CMYK	cmyk(45.5%, 0%, 75.4%, 26.7%)
CIE-LAB	lab(68.43, -49.04, 59.18)
CIE-LCH	lch(68.43, 76.86, 129.65°)
OKLab	oklab(71.15% -0.1367 0.1324)
OKLCH	oklch(71.15% 0.19 135.9)
XYZ	xyz(23.7423, 38.5612, 8.7762)
Luminance	0.3856 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BB2E #832EBB

analogous

#ACBB2E #66BB2E #2EBB3C

triadic

#66BB2E #2E66BB #BB2E66

tetradic

#66BB2E #2EACBB #832EBB #BB3C2E

square

#66BB2E #2EACBB #832EBB #BB3C2E

split-complementary

#66BB2E #3C2EBB #BB2EAC

monochromatic

#305916 #4B8A22 #66BB2E #86D452 #A8E083

Accessibility & contrast

On white

2.41

#66BB2E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.71

#66BB2E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BB2E

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BB2E	#FFFFFF	#000000	##000000
##66BB2E	1.00	2.41	8.71	8.71
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.71	21.00	1.00	1.00
##000000	8.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AB0E

Deuteranopia (green-blind)

#B6A43D

Tritanopia (blue-blind)

#63B4A0

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66bb2e;
/* rgb */ color: rgb(102, 187, 46);
/* oklch */ color: oklch(71.2% 0.190 135.9);

Tailwind

colors: {
  custom: {
    50: '#99d071',
    500: '#66bb2e',
    950: '#000000',
  },
}

SCSS

$custom: #66bb2e;
$custom-light: #99d071;
$custom-dark: #000000;

JSON

{
  "hex": "#66bb2e",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 46
  },
  "hsl": {
    "h": 96.17,
    "s": 60.515,
    "l": 45.686
  },
  "oklch": {
    "l": 0.71151,
    "c": 0.19024,
    "h": 135.9
  },
  "luminance": 0.38563
}

Semantic roles & 50–950 ramp

primary

#66BB2E

secondary

#AA7BCA

accent

#44E4A4

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1408

muted

#7E827B

Preview Lab

Preview with #66BB2E

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

Preview Lab → · Contrast checker → · Palette generator →