#66B034#66B034

#66B034 is a light, vivid yellow-green. Relative luminance 0.341; OKLCH L 68.4% C 0.173 H 135.3°. Best body text is #000000 at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#66B034
RGB	rgb(102, 176, 52)
HSL	hsl(96, 54%, 45%)
HSV	hsv(96, 70%, 69%)
CMYK	cmyk(42%, 0%, 70.5%, 31%)
CIE-LAB	lab(65.06, -44.16, 53.63)
CIE-LCH	lch(65.06, 69.47, 129.47°)
OKLab	oklab(68.4% -0.1231 0.1216)
OKLCH	oklch(68.4% 0.173 135.3)
XYZ	xyz(21.6242, 34.1222, 8.6950)
Luminance	0.3412 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B034 #7E34B0

analogous

#A4B034 #66B034 #34B040

triadic

#66B034 #3466B0 #B03466

tetradic

#66B034 #34A4B0 #7E34B0 #B04034

square

#66B034 #34A4B0 #7E34B0 #B04034

split-complementary

#66B034 #4034B0 #B034A4

monochromatic

#2F5218 #4B8126 #66B034 #85CD55 #A7DB84

Accessibility & contrast

On white

2.68

#66B034 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.82

#66B034 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B034

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B034	#FFFFFF	#000000	##000000
##66B034	1.00	2.68	7.82	7.82
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.82	21.00	1.00	1.00
##000000	7.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A220

Deuteranopia (green-blind)

#AC9C3F

Tritanopia (blue-blind)

#64A997

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #66b034;
/* rgb */ color: rgb(102, 176, 52);
/* oklch */ color: oklch(68.4% 0.173 135.3);

Tailwind

colors: {
  custom: {
    50: '#97c873',
    500: '#66b034',
    950: '#000000',
  },
}

SCSS

$custom: #66b034;
$custom-light: #97c873;
$custom-dark: #000000;

JSON

{
  "hex": "#66b034",
  "rgb": {
    "r": 102,
    "g": 176,
    "b": 52
  },
  "hsl": {
    "h": 95.806,
    "s": 54.386,
    "l": 44.706
  },
  "oklch": {
    "l": 0.68398,
    "c": 0.173,
    "h": 135.3
  },
  "luminance": 0.34123
}

Semantic roles & 50–950 ramp

primary

#66B034

secondary

#A77CC4

accent

#4ADEA2

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B034

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

Preview Lab → · Contrast checker → · Palette generator →