#66A128#66A128

#66A128 is a light, vivid yellow-green. Relative luminance 0.285; OKLCH L 64.5% C 0.161 H 132.4°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#66A128
RGB	rgb(102, 161, 40)
HSL	hsl(89, 60%, 39%)
HSV	hsv(89, 75%, 63%)
CMYK	cmyk(36.6%, 0%, 75.2%, 36.9%)
CIE-LAB	lab(60.31, -38.59, 53.32)
CIE-LCH	lch(60.31, 65.82, 125.90°)
OKLab	oklab(64.49% -0.1089 0.1192)
OKLCH	oklch(64.49% 0.161 132.4)
XYZ	xyz(18.6071, 28.4669, 6.5213)
Luminance	0.2847 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A128 #6328A1

analogous

#A1A028 #66A128 #2AA128

triadic

#66A128 #2866A1 #A12866

tetradic

#66A128 #28A1A0 #6328A1 #A1282A

square

#66A128 #28A1A0 #6328A1 #A1282A

split-complementary

#66A128 #282AA1 #A028A1

monochromatic

#283F10 #47701C #66A128 #85CE39 #A3DA6A

Accessibility & contrast

On white

3.14

#66A128 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#66A128 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66A128

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A128	#FFFFFF	#000000	##000000
##66A128	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8940F

Deuteranopia (green-blind)

#A09034

Tritanopia (blue-blind)

#679A8A

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #66a128;
/* rgb */ color: rgb(102, 161, 40);
/* oklch */ color: oklch(64.5% 0.161 132.4);

Tailwind

colors: {
  custom: {
    50: '#97bd6b',
    500: '#66a128',
    950: '#000000',
  },
}

SCSS

$custom: #66a128;
$custom-light: #97bd6b;
$custom-dark: #000000;

JSON

{
  "hex": "#66a128",
  "rgb": {
    "r": 102,
    "g": 161,
    "b": 40
  },
  "hsl": {
    "h": 89.256,
    "s": 60.199,
    "l": 39.412
  },
  "oklch": {
    "l": 0.64486,
    "c": 0.16142,
    "h": 132.4
  },
  "luminance": 0.28468
}

Semantic roles & 50–950 ramp

primary

#66A128

secondary

#9165C0

accent

#44E392

background

#F9FBF6

surface

#F2F6EC

border

#CCD0C7

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A128

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

Preview Lab → · Contrast checker → · Palette generator →