#66C430#66C430

#66C430 is a light, vivid yellow-green. Relative luminance 0.425; OKLCH L 73.5% C 0.200 H 136.8°. Best body text is #000000 at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#66C430
RGB	rgb(102, 196, 48)
HSL	hsl(98, 61%, 48%)
HSV	hsv(98, 76%, 77%)
CMYK	cmyk(48%, 0%, 75.5%, 23.1%)
CIE-LAB	lab(71.23, -52.43, 61.23)
CIE-LCH	lch(71.23, 80.61, 130.57°)
OKLab	oklab(73.45% -0.1457 0.1369)
OKLCH	oklch(73.45% 0.2 136.8)
XYZ	xyz(25.7522, 42.5163, 9.6452)
Luminance	0.4252 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C430 #8E30C4

analogous

#B0C430 #66C430 #30C444

triadic

#66C430 #3066C4 #C43066

tetradic

#66C430 #30B0C4 #8E30C4 #C44430

square

#66C430 #30B0C4 #8E30C4 #C44430

split-complementary

#66C430 #4430C4 #C430B0

monochromatic

#336218 #4C9324 #66C430 #88D75A #ABE38C

Accessibility & contrast

On white

2.21

#66C430 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.50

#66C430 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C430

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C430	#FFFFFF	#000000	##000000
##66C430	1.00	2.21	9.50	9.50
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.50	21.00	1.00	1.00
##000000	9.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBB30D

Deuteranopia (green-blind)

#BEAB40

Tritanopia (blue-blind)

#61BDA8

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #66c430;
/* rgb */ color: rgb(102, 196, 48);
/* oklch */ color: oklch(73.5% 0.200 136.8);

Tailwind

colors: {
  custom: {
    50: '#9ad673',
    500: '#66c430',
    950: '#000000',
  },
}

SCSS

$custom: #66c430;
$custom-light: #9ad673;
$custom-dark: #000000;

JSON

{
  "hex": "#66c430",
  "rgb": {
    "r": 102,
    "g": 196,
    "b": 48
  },
  "hsl": {
    "h": 98.108,
    "s": 60.656,
    "l": 47.843
  },
  "oklch": {
    "l": 0.7345,
    "c": 0.19993,
    "h": 136.8
  },
  "luminance": 0.42518
}

Semantic roles & 50–950 ramp

primary

#66C430

secondary

#B283CD

accent

#44E4A9

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1409

muted

#7F837B

Preview Lab

Preview with #66C430

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

Preview Lab → · Contrast checker → · Palette generator →