#66A826#66A826

#66A826 is a light, vivid yellow-green. Relative luminance 0.310; OKLCH L 66.3% C 0.171 H 133.3°. Best body text is #000000 at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#66A826
RGB	rgb(102, 168, 38)
HSL	hsl(90, 63%, 40%)
HSV	hsv(90, 77%, 66%)
CMYK	cmyk(39.3%, 0%, 77.4%, 34.1%)
CIE-LAB	lab(62.48, -41.72, 56.10)
CIE-LCH	lch(62.48, 69.91, 126.64°)
OKLab	oklab(66.26% -0.1175 0.1247)
OKLCH	oklch(66.26% 0.171 133.3)
XYZ	xyz(19.8317, 30.9690, 6.7660)
Luminance	0.3097 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A826 #6826A8

analogous

#A7A826 #66A826 #26A827

triadic

#66A826 #2666A8 #A82666

tetradic

#66A826 #26A7A8 #6826A8 #A82726

square

#66A826 #26A7A8 #6826A8 #A82726

split-complementary

#66A826 #2726A8 #A826A7

monochromatic

#29440F #48761B #66A826 #84D239 #A3DE6B

Accessibility & contrast

On white

2.92

#66A826 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.19

#66A826 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A826

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A826	#FFFFFF	#000000	##000000
##66A826	1.00	2.92	7.19	7.19
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.19	21.00	1.00	1.00
##000000	7.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AF9A03

Deuteranopia (green-blind)

#A69534

Tritanopia (blue-blind)

#66A190

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #66a826;
/* rgb */ color: rgb(102, 168, 38);
/* oklch */ color: oklch(66.3% 0.171 133.3);

Tailwind

colors: {
  custom: {
    50: '#97c26b',
    500: '#66a826',
    950: '#000000',
  },
}

SCSS

$custom: #66a826;
$custom-light: #97c26b;
$custom-dark: #000000;

JSON

{
  "hex": "#66a826",
  "rgb": {
    "r": 102,
    "g": 168,
    "b": 38
  },
  "hsl": {
    "h": 90.462,
    "s": 63.107,
    "l": 40.392
  },
  "oklch": {
    "l": 0.66259,
    "c": 0.17132,
    "h": 133.3
  },
  "luminance": 0.3097
}

Semantic roles & 50–950 ramp

primary

#66A826

secondary

#9666C4

accent

#42E695

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A826

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

Preview Lab → · Contrast checker → · Palette generator →