#66B320#66B320

#66B320 is a light, vivid yellow-green. Relative luminance 0.352; OKLCH L 69.0% C 0.187 H 134.3°. Best body text is #000000 at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#66B320
RGB	rgb(102, 179, 32)
HSL	hsl(91, 70%, 41%)
HSV	hsv(91, 82%, 70%)
CMYK	cmyk(43%, 0%, 82.1%, 29.8%)
CIE-LAB	lab(65.88, -46.59, 61.04)
CIE-LCH	lch(65.88, 76.79, 127.35°)
OKLab	oklab(69.03% -0.1309 0.1342)
OKLCH	oklch(69.03% 0.187 134.3)
XYZ	xyz(21.8599, 35.1680, 7.0025)
Luminance	0.3517 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B320 #6D20B3

analogous

#B0B320 #66B320 #20B324

triadic

#66B320 #2066B3 #B32066

tetradic

#66B320 #20B0B3 #6D20B3 #B32420

square

#66B320 #20B0B3 #6D20B3 #B32420

split-complementary

#66B320 #2420B3 #B320B0

monochromatic

#2B4B0D #487F17 #66B320 #84DB35 #A4E469

Accessibility & contrast

On white

2.61

#66B320 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.03

#66B320 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B320

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B320	#FFFFFF	#000000	##000000
##66B320	1.00	2.61	8.03	8.03
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.03	21.00	1.00	1.00
##000000	8.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA400

Deuteranopia (green-blind)

#B09E32

Tritanopia (blue-blind)

#65AC99

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #66b320;
/* rgb */ color: rgb(102, 179, 32);
/* oklch */ color: oklch(69.0% 0.187 134.3);

Tailwind

colors: {
  custom: {
    50: '#99ca6a',
    500: '#66b320',
    950: '#000000',
  },
}

SCSS

$custom: #66b320;
$custom-light: #99ca6a;
$custom-dark: #000000;

JSON

{
  "hex": "#66b320",
  "rgb": {
    "r": 102,
    "g": 179,
    "b": 32
  },
  "hsl": {
    "h": 91.429,
    "s": 69.668,
    "l": 41.373
  },
  "oklch": {
    "l": 0.69034,
    "c": 0.18748,
    "h": 134.3
  },
  "luminance": 0.35169
}

Semantic roles & 50–950 ramp

primary

#66B320

secondary

#9A65CA

accent

#3BEC98

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0F1307

muted

#7E827A

Preview Lab

Preview with #66B320

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

Preview Lab → · Contrast checker → · Palette generator →