#66B026#66B026

#66B026 is a light, vivid yellow-green. Relative luminance 0.340; OKLCH L 68.3% C 0.181 H 134.3°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#66B026
RGB	rgb(102, 176, 38)
HSL	hsl(92, 64%, 42%)
HSV	hsv(92, 78%, 69%)
CMYK	cmyk(42%, 0%, 78.4%, 31%)
CIE-LAB	lab(64.97, -45.06, 58.46)
CIE-LCH	lch(64.97, 73.81, 127.63°)
OKLab	oklab(68.3% -0.1265 0.1297)
OKLCH	oklch(68.3% 0.181 134.3)
XYZ	xyz(21.3543, 34.0142, 7.2736)
Luminance	0.3402 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B026 #7026B0

analogous

#ABB026 #66B026 #26B02B

triadic

#66B026 #2666B0 #B02666

tetradic

#66B026 #26ABB0 #7026B0 #B02B26

square

#66B026 #26ABB0 #7026B0 #B02B26

split-complementary

#66B026 #2B26B0 #B026AB

monochromatic

#2C4B10 #497E1B #66B026 #84D53E #A4E070

Accessibility & contrast

On white

2.69

#66B026 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#66B026 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B026

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B026	#FFFFFF	#000000	##000000
##66B026	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A100

Deuteranopia (green-blind)

#AD9B35

Tritanopia (blue-blind)

#65A996

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #66b026;
/* rgb */ color: rgb(102, 176, 38);
/* oklch */ color: oklch(68.3% 0.181 134.3);

Tailwind

colors: {
  custom: {
    50: '#98c86c',
    500: '#66b026',
    950: '#000000',
  },
}

SCSS

$custom: #66b026;
$custom-light: #98c86c;
$custom-dark: #000000;

JSON

{
  "hex": "#66b026",
  "rgb": {
    "r": 102,
    "g": 176,
    "b": 38
  },
  "hsl": {
    "h": 92.174,
    "s": 64.486,
    "l": 41.961
  },
  "oklch": {
    "l": 0.683,
    "c": 0.18113,
    "h": 134.3
  },
  "luminance": 0.34015
}

Semantic roles & 50–950 ramp

primary

#66B026

secondary

#9C6BC7

accent

#40E79A

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66B026

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

Preview Lab → · Contrast checker → · Palette generator →