#66A427#66A427

#66A427 is a light, vivid yellow-green. Relative luminance 0.295; OKLCH L 65.2% C 0.166 H 132.8°. Best body text is #000000 at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#66A427
RGB	rgb(102, 164, 39)
HSL	hsl(90, 62%, 40%)
HSV	hsv(90, 76%, 64%)
CMYK	cmyk(37.8%, 0%, 76.2%, 35.7%)
CIE-LAB	lab(61.24, -39.95, 54.57)
CIE-LCH	lch(61.24, 67.63, 126.21°)
OKLab	oklab(65.25% -0.1126 0.1217)
OKLCH	oklch(65.25% 0.166 132.8)
XYZ	xyz(19.1209, 29.5213, 6.6098)
Luminance	0.2952 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A427 #6527A4

analogous

#A4A327 #66A427 #28A427

triadic

#66A427 #2766A4 #A42766

tetradic

#66A427 #27A4A3 #6527A4 #A42728

square

#66A427 #27A4A3 #6527A4 #A42728

split-complementary

#66A427 #2728A4 #A327A4

monochromatic

#28410F #47731B #66A427 #85D038 #A3DC6A

Accessibility & contrast

On white

3.04

#66A427 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.90

#66A427 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66A427

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A427	#FFFFFF	#000000	##000000
##66A427	1.00	3.04	6.90	6.90
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.90	21.00	1.00	1.00
##000000	6.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AB970A

Deuteranopia (green-blind)

#A29234

Tritanopia (blue-blind)

#679D8C

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #66a427;
/* rgb */ color: rgb(102, 164, 39);
/* oklch */ color: oklch(65.2% 0.166 132.8);

Tailwind

colors: {
  custom: {
    50: '#97bf6b',
    500: '#66a427',
    950: '#000000',
  },
}

SCSS

$custom: #66a427;
$custom-light: #97bf6b;
$custom-dark: #000000;

JSON

{
  "hex": "#66a427",
  "rgb": {
    "r": 102,
    "g": 164,
    "b": 39
  },
  "hsl": {
    "h": 89.76,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.65245,
    "c": 0.16578,
    "h": 132.8
  },
  "luminance": 0.29522
}

Semantic roles & 50–950 ramp

primary

#66A427

secondary

#9365C2

accent

#43E593

background

#F9FBF6

surface

#F2F7EC

border

#CCD0C7

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A427

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

Preview Lab → · Contrast checker → · Palette generator →