#66B024#66B024

#66B024 is a light, vivid yellow-green. Relative luminance 0.340; OKLCH L 68.3% C 0.182 H 134.2°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#66B024
RGB	rgb(102, 176, 36)
HSL	hsl(92, 66%, 42%)
HSV	hsv(92, 80%, 69%)
CMYK	cmyk(42%, 0%, 79.5%, 31%)
CIE-LAB	lab(64.96, -45.17, 59.06)
CIE-LCH	lch(64.96, 74.35, 127.41°)
OKLab	oklab(68.29% -0.1269 0.1306)
OKLCH	oklch(68.29% 0.182 134.2)
XYZ	xyz(21.3229, 34.0017, 7.1082)
Luminance	0.3400 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B024 #6E24B0

analogous

#ACB024 #66B024 #24B028

triadic

#66B024 #2466B0 #B02466

tetradic

#66B024 #24ACB0 #6E24B0 #B02824

square

#66B024 #24ACB0 #6E24B0 #B02824

split-complementary

#66B024 #2824B0 #B024AC

monochromatic

#2B4A0F #497D1A #66B024 #84D73A #A4E16D

Accessibility & contrast

On white

2.69

#66B024 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#66B024 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B024

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B024	#FFFFFF	#000000	##000000
##66B024	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A100

Deuteranopia (green-blind)

#AD9B34

Tritanopia (blue-blind)

#65A996

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #66b024;
/* rgb */ color: rgb(102, 176, 36);
/* oklch */ color: oklch(68.3% 0.182 134.2);

Tailwind

colors: {
  custom: {
    50: '#98c86b',
    500: '#66b024',
    950: '#000000',
  },
}

SCSS

$custom: #66b024;
$custom-light: #98c86b;
$custom-dark: #000000;

JSON

{
  "hex": "#66b024",
  "rgb": {
    "r": 102,
    "g": 176,
    "b": 36
  },
  "hsl": {
    "h": 91.714,
    "s": 66.038,
    "l": 41.569
  },
  "oklch": {
    "l": 0.68289,
    "c": 0.1821,
    "h": 134.2
  },
  "luminance": 0.34003
}

Semantic roles & 50–950 ramp

primary

#66B024

secondary

#9B68C8

accent

#3FE999

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66B024

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

Preview Lab → · Contrast checker → · Palette generator →