#66B725#66B725

#66B725 is a light, vivid yellow-green. Relative luminance 0.368; OKLCH L 70.1% C 0.190 H 135.0°. Best body text is #000000 at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#66B725
RGB	rgb(102, 183, 37)
HSL	hsl(93, 66%, 43%)
HSV	hsv(93, 80%, 72%)
CMYK	cmyk(44.3%, 0%, 79.8%, 28.2%)
CIE-LAB	lab(67.14, -47.95, 60.79)
CIE-LCH	lch(67.14, 77.43, 128.27°)
OKLab	oklab(70.08% -0.1343 0.1344)
OKLCH	oklch(70.08% 0.19 135)
XYZ	xyz(22.7464, 36.8240, 7.6591)
Luminance	0.3683 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B725 #7625B7

analogous

#AFB725 #66B725 #25B72D

triadic

#66B725 #2566B7 #B72566

tetradic

#66B725 #25AFB7 #7625B7 #B72D25

square

#66B725 #25AFB7 #7625B7 #B72D25

split-complementary

#66B725 #2D25B7 #B725AF

monochromatic

#2D5110 #4A841B #66B725 #84D941 #A5E374

Accessibility & contrast

On white

2.51

#66B725 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.37

#66B725 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B725

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B725	#FFFFFF	#000000	##000000
##66B725	1.00	2.51	8.37	8.37
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.37	21.00	1.00	1.00
##000000	8.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEA800

Deuteranopia (green-blind)

#B3A136

Tritanopia (blue-blind)

#64B09C

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #66b725;
/* rgb */ color: rgb(102, 183, 37);
/* oklch */ color: oklch(70.1% 0.190 135.0);

Tailwind

colors: {
  custom: {
    50: '#99cd6c',
    500: '#66b725',
    950: '#000000',
  },
}

SCSS

$custom: #66b725;
$custom-light: #99cd6c;
$custom-dark: #000000;

JSON

{
  "hex": "#66b725",
  "rgb": {
    "r": 102,
    "g": 183,
    "b": 37
  },
  "hsl": {
    "h": 93.288,
    "s": 66.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.70079,
    "c": 0.19001,
    "h": 135
  },
  "luminance": 0.36825
}

Semantic roles & 50–950 ramp

primary

#66B725

secondary

#A16ECA

accent

#3FE99D

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0F1308

muted

#7E827B

Preview Lab

Preview with #66B725

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

Preview Lab → · Contrast checker → · Palette generator →