#66B22B#66B22B

#66B22B is a light, vivid yellow-green. Relative luminance 0.348; OKLCH L 68.8% C 0.181 H 134.8°. Best body text is #000000 at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#66B22B
RGB	rgb(102, 178, 43)
HSL	hsl(94, 61%, 43%)
HSV	hsv(94, 76%, 70%)
CMYK	cmyk(42.7%, 0%, 75.8%, 30.2%)
CIE-LAB	lab(65.62, -45.60, 57.46)
CIE-LCH	lch(65.62, 73.35, 128.43°)
OKLab	oklab(68.84% -0.1276 0.1283)
OKLCH	oklch(68.84% 0.181 134.8)
XYZ	xyz(21.8355, 34.8388, 7.8590)
Luminance	0.3484 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B22B #772BB2

analogous

#A9B22B #66B22B #2BB234

triadic

#66B22B #2B66B2 #B22B66

tetradic

#66B22B #2BA9B2 #772BB2 #B2342B

square

#66B22B #2BA9B2 #772BB2 #B2342B

split-complementary

#66B22B #342BB2 #B22BA9

monochromatic

#2E4F13 #4A811F #66B22B #84D348 #A5DF79

Accessibility & contrast

On white

2.64

#66B22B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.97

#66B22B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B22B

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B22B	#FFFFFF	#000000	##000000
##66B22B	1.00	2.64	7.97	7.97
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.97	21.00	1.00	1.00
##000000	7.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A30B

Deuteranopia (green-blind)

#AF9D39

Tritanopia (blue-blind)

#64AB98

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #66b22b;
/* rgb */ color: rgb(102, 178, 43);
/* oklch */ color: oklch(68.8% 0.181 134.8);

Tailwind

colors: {
  custom: {
    50: '#98c96e',
    500: '#66b22b',
    950: '#000000',
  },
}

SCSS

$custom: #66b22b;
$custom-light: #98c96e;
$custom-dark: #000000;

JSON

{
  "hex": "#66b22b",
  "rgb": {
    "r": 102,
    "g": 178,
    "b": 43
  },
  "hsl": {
    "h": 93.778,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.68841,
    "c": 0.18094,
    "h": 134.8
  },
  "luminance": 0.3484
}

Semantic roles & 50–950 ramp

primary

#66B22B

secondary

#A272C7

accent

#44E49E

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B22B

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

Preview Lab → · Contrast checker → · Palette generator →