#66B129#66B129

#66B129 is a light, vivid yellow-green. Relative luminance 0.344; OKLCH L 68.6% C 0.181 H 134.6°. Best body text is #000000 at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#66B129
RGB	rgb(102, 177, 41)
HSL	hsl(93, 62%, 43%)
HSV	hsv(93, 77%, 69%)
CMYK	cmyk(42.4%, 0%, 76.8%, 30.6%)
CIE-LAB	lab(65.30, -45.31, 57.81)
CIE-LCH	lch(65.30, 73.45, 128.09°)
OKLab	oklab(68.57% -0.1269 0.1288)
OKLCH	oklch(68.57% 0.181 134.6)
XYZ	xyz(21.6014, 34.4280, 7.6044)
Luminance	0.3443 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B129 #7429B1

analogous

#AAB129 #66B129 #29B130

triadic

#66B129 #2966B1 #B12966

tetradic

#66B129 #29AAB1 #7429B1 #B13029

square

#66B129 #29AAB1 #7429B1 #B13029

split-complementary

#66B129 #3029B1 #B129AA

monochromatic

#2D4E12 #497F1D #66B129 #84D444 #A5DF75

Accessibility & contrast

On white

2.66

#66B129 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.89

#66B129 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B129

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B129	#FFFFFF	#000000	##000000
##66B129	1.00	2.66	7.89	7.89
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.89	21.00	1.00	1.00
##000000	7.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A205

Deuteranopia (green-blind)

#AE9C37

Tritanopia (blue-blind)

#65AA97

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #66b129;
/* rgb */ color: rgb(102, 177, 41);
/* oklch */ color: oklch(68.6% 0.181 134.6);

Tailwind

colors: {
  custom: {
    50: '#98c96d',
    500: '#66b129',
    950: '#000000',
  },
}

SCSS

$custom: #66b129;
$custom-light: #98c96d;
$custom-dark: #000000;

JSON

{
  "hex": "#66b129",
  "rgb": {
    "r": 102,
    "g": 177,
    "b": 41
  },
  "hsl": {
    "h": 93.088,
    "s": 62.385,
    "l": 42.745
  },
  "oklch": {
    "l": 0.68573,
    "c": 0.1808,
    "h": 134.6
  },
  "luminance": 0.34429
}

Semantic roles & 50–950 ramp

primary

#66B129

secondary

#9F6FC7

accent

#42E59C

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B129

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

Preview Lab → · Contrast checker → · Palette generator →