#66A629#66A629

#66A629 is a light, vivid yellow-green. Relative luminance 0.303; OKLCH L 65.8% C 0.167 H 133.2°. Best body text is #000000 at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#66A629
RGB	rgb(102, 166, 41)
HSL	hsl(91, 60%, 41%)
HSV	hsv(91, 75%, 65%)
CMYK	cmyk(38.6%, 0%, 75.3%, 34.9%)
CIE-LAB	lab(61.87, -40.69, 54.49)
CIE-LCH	lch(61.87, 68.01, 126.75°)
OKLab	oklab(65.77% -0.1145 0.1218)
OKLCH	oklch(65.77% 0.167 133.2)
XYZ	xyz(19.5156, 30.2564, 6.9092)
Luminance	0.3026 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A629 #6929A6

analogous

#A4A629 #66A629 #29A62B

triadic

#66A629 #2966A6 #A62966

tetradic

#66A629 #29A4A6 #6929A6 #A62B29

square

#66A629 #29A4A6 #6929A6 #A62B29

split-complementary

#66A629 #2B29A6 #A629A4

monochromatic

#2A4411 #48751D #66A629 #84CF3D #A3DB6E

Accessibility & contrast

On white

2.98

#66A629 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.05

#66A629 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A629

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A629	#FFFFFF	#000000	##000000
##66A629	1.00	2.98	7.05	7.05
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.05	21.00	1.00	1.00
##000000	7.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AD990E

Deuteranopia (green-blind)

#A49436

Tritanopia (blue-blind)

#669F8E

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #66a629;
/* rgb */ color: rgb(102, 166, 41);
/* oklch */ color: oklch(65.8% 0.167 133.2);

Tailwind

colors: {
  custom: {
    50: '#97c16c',
    500: '#66a629',
    950: '#000000',
  },
}

SCSS

$custom: #66a629;
$custom-light: #97c16c;
$custom-dark: #000000;

JSON

{
  "hex": "#66a629",
  "rgb": {
    "r": 102,
    "g": 166,
    "b": 41
  },
  "hsl": {
    "h": 90.72,
    "s": 60.386,
    "l": 40.588
  },
  "oklch": {
    "l": 0.65768,
    "c": 0.16716,
    "h": 133.2
  },
  "luminance": 0.30257
}

Semantic roles & 50–950 ramp

primary

#66A629

secondary

#9669C2

accent

#44E496

background

#F9FBF6

surface

#F2F7EC

border

#CCD0C7

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A629

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

Preview Lab → · Contrast checker → · Palette generator →