#66B733#66B733

#66B733 is a light, vivid yellow-green. Relative luminance 0.369; OKLCH L 70.2% C 0.182 H 135.9°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#66B733
RGB	rgb(102, 183, 51)
HSL	hsl(97, 56%, 46%)
HSV	hsv(97, 72%, 72%)
CMYK	cmyk(44.3%, 0%, 72.1%, 28.2%)
CIE-LAB	lab(67.22, -47.10, 56.22)
CIE-LCH	lch(67.22, 73.34, 129.96°)
OKLab	oklab(70.17% -0.1311 0.1269)
OKLCH	oklch(70.17% 0.182 135.9)
XYZ	xyz(23.0099, 36.9294, 9.0470)
Luminance	0.3693 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B733 #8433B7

analogous

#A8B733 #66B733 #33B742

triadic

#66B733 #3366B7 #B73366

tetradic

#66B733 #33A8B7 #8433B7 #B74233

square

#66B733 #33A8B7 #8433B7 #B74233

split-complementary

#66B733 #4233B7 #B733A8

monochromatic

#315718 #4B8726 #66B733 #86D057 #A8DE87

Accessibility & contrast

On white

2.50

#66B733 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#66B733 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B733

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B733	#FFFFFF	#000000	##000000
##66B733	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDA81C

Deuteranopia (green-blind)

#B3A140

Tritanopia (blue-blind)

#63B09D

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #66b733;
/* rgb */ color: rgb(102, 183, 51);
/* oklch */ color: oklch(70.2% 0.182 135.9);

Tailwind

colors: {
  custom: {
    50: '#98cd73',
    500: '#66b733',
    950: '#000000',
  },
}

SCSS

$custom: #66b733;
$custom-light: #98cd73;
$custom-dark: #000000;

JSON

{
  "hex": "#66b733",
  "rgb": {
    "r": 102,
    "g": 183,
    "b": 51
  },
  "hsl": {
    "h": 96.818,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.7017,
    "c": 0.18244,
    "h": 135.9
  },
  "luminance": 0.36931
}

Semantic roles & 50–950 ramp

primary

#66B733

secondary

#AB7FC7

accent

#48E0A5

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B733

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

Preview Lab → · Contrast checker → · Palette generator →