#66B545#66B545

#66B545 is a light, vivid green. Relative luminance 0.363; OKLCH L 69.8% C 0.167 H 137.7°. Best body text is #000000 at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#66B545
RGB	rgb(102, 181, 69)
HSL	hsl(102, 45%, 49%)
HSV	hsv(102, 62%, 71%)
CMYK	cmyk(43.6%, 0%, 61.9%, 29%)
CIE-LAB	lab(66.75, -44.75, 48.35)
CIE-LCH	lch(66.75, 65.88, 132.79°)
OKLab	oklab(69.83% -0.1235 0.1125)
OKLCH	oklch(69.83% 0.167 137.7)
XYZ	xyz(23.0768, 36.3008, 11.4199)
Luminance	0.3630 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B545 #9445B5

analogous

#9EB545 #66B545 #45B55C

triadic

#66B545 #4566B5 #B54566

tetradic

#66B545 #459EB5 #9445B5 #B55C45

square

#66B545 #459EB5 #9445B5 #B55C45

split-complementary

#66B545 #5C45B5 #B5459E

monochromatic

#345C23 #4D8934 #66B545 #89C86F #AED99B

Accessibility & contrast

On white

2.54

#66B545 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.26

#66B545 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B545

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B545	#FFFFFF	#000000	##000000
##66B545	1.00	2.54	8.26	8.26
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.26	21.00	1.00	1.00
##000000	8.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA738

Deuteranopia (green-blind)

#B0A04E

Tritanopia (blue-blind)

#61AF9D

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #66b545;
/* rgb */ color: rgb(102, 181, 69);
/* oklch */ color: oklch(69.8% 0.167 137.7);

Tailwind

colors: {
  custom: {
    50: '#97cc7d',
    500: '#66b545',
    950: '#000000',
  },
}

SCSS

$custom: #66b545;
$custom-light: #97cc7d;
$custom-dark: #000000;

JSON

{
  "hex": "#66b545",
  "rgb": {
    "r": 102,
    "g": 181,
    "b": 69
  },
  "hsl": {
    "h": 102.321,
    "s": 44.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.69827,
    "c": 0.16704,
    "h": 137.7
  },
  "luminance": 0.36302
}

Semantic roles & 50–950 ramp

primary

#66B545

secondary

#B691C5

accent

#53D5AE

background

#F9FCF7

surface

#F2F9EE

border

#CCD2C9

text

#0E130A

muted

#7E827C

Preview Lab

Preview with #66B545

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

Preview Lab → · Contrast checker → · Palette generator →