#66A624#66A624

#66A624 is a light, vivid yellow-green. Relative luminance 0.302; OKLCH L 65.7% C 0.170 H 132.9°. Best body text is #000000 at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#66A624
RGB	rgb(102, 166, 36)
HSL	hsl(90, 64%, 40%)
HSV	hsv(90, 78%, 65%)
CMYK	cmyk(38.6%, 0%, 78.3%, 34.9%)
CIE-LAB	lab(61.85, -40.98, 56.14)
CIE-LCH	lch(61.85, 69.51, 126.13°)
OKLab	oklab(65.74% -0.1156 0.1245)
OKLCH	oklch(65.74% 0.17 132.9)
XYZ	xyz(19.4339, 30.2237, 6.4785)
Luminance	0.3023 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A624 #6424A6

analogous

#A6A524 #66A624 #25A624

triadic

#66A624 #2466A6 #A62466

tetradic

#66A624 #24A6A5 #6424A6 #A62425

square

#66A624 #24A6A5 #6424A6 #A62425

split-complementary

#66A624 #2425A6 #A524A6

monochromatic

#28410E #477419 #66A624 #85D334 #A3DE66

Accessibility & contrast

On white

2.98

#66A624 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.05

#66A624 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A624

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A624	#FFFFFF	#000000	##000000
##66A624	1.00	2.98	7.05	7.05
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.05	21.00	1.00	1.00
##000000	7.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AD9900

Deuteranopia (green-blind)

#A49432

Tritanopia (blue-blind)

#679F8E

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #66a624;
/* rgb */ color: rgb(102, 166, 36);
/* oklch */ color: oklch(65.7% 0.170 132.9);

Tailwind

colors: {
  custom: {
    50: '#97c16a',
    500: '#66a624',
    950: '#000000',
  },
}

SCSS

$custom: #66a624;
$custom-light: #97c16a;
$custom-dark: #000000;

JSON

{
  "hex": "#66a624",
  "rgb": {
    "r": 102,
    "g": 166,
    "b": 36
  },
  "hsl": {
    "h": 89.538,
    "s": 64.356,
    "l": 39.608
  },
  "oklch": {
    "l": 0.65737,
    "c": 0.16989,
    "h": 132.9
  },
  "luminance": 0.30225
}

Semantic roles & 50–950 ramp

primary

#66A624

secondary

#9262C4

accent

#40E793

background

#F9FBF6

surface

#F2F7EB

border

#CCD0C6

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A624

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

Preview Lab → · Contrast checker → · Palette generator →