#66B336#66B336

#66B336 is a light, vivid yellow-green. Relative luminance 0.353; OKLCH L 69.2% C 0.175 H 135.8°. Best body text is #000000 at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#66B336
RGB	rgb(102, 179, 54)
HSL	hsl(97, 54%, 46%)
HSV	hsv(97, 70%, 70%)
CMYK	cmyk(43%, 0%, 69.8%, 29.8%)
CIE-LAB	lab(66.00, -45.25, 53.83)
CIE-LCH	lch(66.00, 70.32, 130.05°)
OKLab	oklab(69.18% -0.1259 0.1223)
OKLCH	oklch(69.18% 0.175 135.8)
XYZ	xyz(22.2649, 35.3300, 9.1355)
Luminance	0.3533 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B336 #8336B3

analogous

#A4B336 #66B336 #36B344

triadic

#66B336 #3666B3 #B33666

tetradic

#66B336 #36A4B3 #8336B3 #B34436

square

#66B336 #36A4B3 #8336B3 #B34436

split-complementary

#66B336 #4436B3 #B336A4

monochromatic

#30551A #4B8428 #66B336 #86CD59 #A8DB88

Accessibility & contrast

On white

2.60

#66B336 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.07

#66B336 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B336

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B336	#FFFFFF	#000000	##000000
##66B336	1.00	2.60	8.07	8.07
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.07	21.00	1.00	1.00
##000000	8.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A423

Deuteranopia (green-blind)

#AF9E41

Tritanopia (blue-blind)

#63AC9A

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #66b336;
/* rgb */ color: rgb(102, 179, 54);
/* oklch */ color: oklch(69.2% 0.175 135.8);

Tailwind

colors: {
  custom: {
    50: '#98ca74',
    500: '#66b336',
    950: '#000000',
  },
}

SCSS

$custom: #66b336;
$custom-light: #98ca74;
$custom-dark: #000000;

JSON

{
  "hex": "#66b336",
  "rgb": {
    "r": 102,
    "g": 179,
    "b": 54
  },
  "hsl": {
    "h": 96.96,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.69177,
    "c": 0.17549,
    "h": 135.8
  },
  "luminance": 0.35331
}

Semantic roles & 50–950 ramp

primary

#66B336

secondary

#AA80C5

accent

#4BDDA5

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1309

muted

#7E827B

Preview Lab

Preview with #66B336

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

Preview Lab → · Contrast checker → · Palette generator →