#66BD2E#66BD2E

#66BD2E is a light, vivid yellow-green. Relative luminance 0.394; OKLCH L 71.7% C 0.193 H 136.1°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#66BD2E
RGB	rgb(102, 189, 46)
HSL	hsl(97, 61%, 46%)
HSV	hsv(97, 76%, 74%)
CMYK	cmyk(46%, 0%, 75.7%, 25.9%)
CIE-LAB	lab(69.05, -49.83, 59.78)
CIE-LCH	lch(69.05, 77.83, 129.81°)
OKLab	oklab(71.66% -0.1388 0.1336)
OKLCH	oklch(71.66% 0.193 136.1)
XYZ	xyz(24.1696, 39.4157, 8.9187)
Luminance	0.3942 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BD2E #852EBD

analogous

#ADBD2E #66BD2E #2EBD3D

triadic

#66BD2E #2E66BD #BD2E66

tetradic

#66BD2E #2EADBD #852EBD #BD3D2E

square

#66BD2E #2EADBD #852EBD #BD3D2E

split-complementary

#66BD2E #3D2EBD #BD2EAD

monochromatic

#315B16 #4B8C22 #66BD2E #86D553 #A9E184

Accessibility & contrast

On white

2.36

#66BD2E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#66BD2E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD2E

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BD2E	#FFFFFF	#000000	##000000
##66BD2E	1.00	2.36	8.88	8.88
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AD0C

Deuteranopia (green-blind)

#B8A63D

Tritanopia (blue-blind)

#62B6A2

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #66bd2e;
/* rgb */ color: rgb(102, 189, 46);
/* oklch */ color: oklch(71.7% 0.193 136.1);

Tailwind

colors: {
  custom: {
    50: '#99d171',
    500: '#66bd2e',
    950: '#000000',
  },
}

SCSS

$custom: #66bd2e;
$custom-light: #99d171;
$custom-dark: #000000;

JSON

{
  "hex": "#66bd2e",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 46
  },
  "hsl": {
    "h": 96.503,
    "s": 60.851,
    "l": 46.078
  },
  "oklch": {
    "l": 0.71659,
    "c": 0.19265,
    "h": 136.1
  },
  "luminance": 0.39417
}

Semantic roles & 50–950 ramp

primary

#66BD2E

secondary

#AC7CCA

accent

#44E4A5

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1408

muted

#7E827B

Preview Lab

Preview with #66BD2E

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

Preview Lab → · Contrast checker → · Palette generator →