#66BD25#66BD25

#66BD25 is a light, vivid yellow-green. Relative luminance 0.394; OKLCH L 71.6% C 0.197 H 135.5°. Best body text is #000000 at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#66BD25
RGB	rgb(102, 189, 37)
HSL	hsl(94, 67%, 44%)
HSV	hsv(94, 80%, 74%)
CMYK	cmyk(46%, 0%, 80.4%, 25.9%)
CIE-LAB	lab(69.01, -50.33, 62.51)
CIE-LCH	lch(69.01, 80.26, 128.84°)
OKLab	oklab(71.61% -0.1407 0.138)
OKLCH	oklch(71.61% 0.197 135.5)
XYZ	xyz(24.0104, 39.3520, 8.0804)
Luminance	0.3935 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BD25 #7C25BD

analogous

#B2BD25 #66BD25 #25BD30

triadic

#66BD25 #2566BD #BD2566

tetradic

#66BD25 #25B2BD #7C25BD #BD3025

square

#66BD25 #25B2BD #7C25BD #BD3025

split-complementary

#66BD25 #3025BD #BD25B2

monochromatic

#2F5711 #4A8A1B #66BD25 #85DB45 #A6E578

Accessibility & contrast

On white

2.37

#66BD25 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.87

#66BD25 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD25

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BD25	#FFFFFF	#000000	##000000
##66BD25	1.00	2.37	8.87	8.87
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.87	21.00	1.00	1.00
##000000	8.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AD00

Deuteranopia (green-blind)

#B9A637

Tritanopia (blue-blind)

#63B6A1

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bd25;
/* rgb */ color: rgb(102, 189, 37);
/* oklch */ color: oklch(71.6% 0.197 135.5);

Tailwind

colors: {
  custom: {
    50: '#9ad16d',
    500: '#66bd25',
    950: '#000000',
  },
}

SCSS

$custom: #66bd25;
$custom-light: #9ad16d;
$custom-dark: #000000;

JSON

{
  "hex": "#66bd25",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 37
  },
  "hsl": {
    "h": 94.342,
    "s": 67.257,
    "l": 44.314
  },
  "oklch": {
    "l": 0.71607,
    "c": 0.19708,
    "h": 135.5
  },
  "luminance": 0.39354
}

Semantic roles & 50–950 ramp

primary

#66BD25

secondary

#A572CC

accent

#3EEAA0

background

#FAFCF7

surface

#F3F9ED

border

#CDD2C8

text

#0F1408

muted

#7F827B

Preview Lab

Preview with #66BD25

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

Preview Lab → · Contrast checker → · Palette generator →