#66AA29#66AA29

#66AA29 is a light, vivid yellow-green. Relative luminance 0.317; OKLCH L 66.8% C 0.172 H 133.8°. Best body text is #000000 at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#66AA29
RGB	rgb(102, 170, 41)
HSL	hsl(92, 61%, 41%)
HSV	hsv(92, 76%, 67%)
CMYK	cmyk(40%, 0%, 75.9%, 33.3%)
CIE-LAB	lab(63.12, -42.39, 55.71)
CIE-LCH	lch(63.12, 70.00, 127.27°)
OKLab	oklab(66.79% -0.1191 0.1244)
OKLCH	oklch(66.79% 0.172 133.8)
XYZ	xyz(20.2541, 31.7333, 7.1553)
Luminance	0.3173 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AA29 #6D29AA

analogous

#A7AA29 #66AA29 #29AA2D

triadic

#66AA29 #2966AA #AA2966

tetradic

#66AA29 #29A7AA #6D29AA #AA2D29

square

#66AA29 #29A7AA #6D29AA #AA2D29

split-complementary

#66AA29 #2D29AA #AA29A7

monochromatic

#2B4711 #48791D #66AA29 #84D13F #A4DD71

Accessibility & contrast

On white

2.86

#66AA29 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.35

#66AA29 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AA29

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AA29	#FFFFFF	#000000	##000000
##66AA29	1.00	2.86	7.35	7.35
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.35	21.00	1.00	1.00
##000000	7.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B19C0B

Deuteranopia (green-blind)

#A89736

Tritanopia (blue-blind)

#66A391

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #66aa29;
/* rgb */ color: rgb(102, 170, 41);
/* oklch */ color: oklch(66.8% 0.172 133.8);

Tailwind

colors: {
  custom: {
    50: '#97c46c',
    500: '#66aa29',
    950: '#000000',
  },
}

SCSS

$custom: #66aa29;
$custom-light: #97c46c;
$custom-dark: #000000;

JSON

{
  "hex": "#66aa29",
  "rgb": {
    "r": 102,
    "g": 170,
    "b": 41
  },
  "hsl": {
    "h": 91.628,
    "s": 61.137,
    "l": 41.373
  },
  "oklch": {
    "l": 0.66789,
    "c": 0.17216,
    "h": 133.8
  },
  "luminance": 0.31734
}

Semantic roles & 50–950 ramp

primary

#66AA29

secondary

#9A6BC4

accent

#44E498

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66AA29

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

Preview Lab → · Contrast checker → · Palette generator →