#66B626#66B626

#66B626 is a light, vivid yellow-green. Relative luminance 0.364; OKLCH L 69.8% C 0.188 H 134.9°. Best body text is #000000 at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#66B626
RGB	rgb(102, 182, 38)
HSL	hsl(93, 65%, 43%)
HSV	hsv(93, 79%, 71%)
CMYK	cmyk(44%, 0%, 79.1%, 28.6%)
CIE-LAB	lab(66.84, -47.50, 60.21)
CIE-LCH	lch(66.84, 76.69, 128.27°)
OKLab	oklab(69.83% -0.133 0.1333)
OKLCH	oklch(69.83% 0.188 134.9)
XYZ	xyz(22.5568, 36.4193, 7.6744)
Luminance	0.3642 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B626 #7626B6

analogous

#AEB626 #66B626 #26B62E

triadic

#66B626 #2666B6 #B62666

tetradic

#66B626 #26AEB6 #7626B6 #B62E26

square

#66B626 #26AEB6 #7626B6 #B62E26

split-complementary

#66B626 #2E26B6 #B626AE

monochromatic

#2D5111 #4A831B #66B626 #84D742 #A5E274

Accessibility & contrast

On white

2.53

#66B626 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.28

#66B626 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B626

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B626	#FFFFFF	#000000	##000000
##66B626	1.00	2.53	8.28	8.28
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.28	21.00	1.00	1.00
##000000	8.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDA700

Deuteranopia (green-blind)

#B2A036

Tritanopia (blue-blind)

#64AF9B

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #66b626;
/* rgb */ color: rgb(102, 182, 38);
/* oklch */ color: oklch(69.8% 0.188 134.9);

Tailwind

colors: {
  custom: {
    50: '#99cc6d',
    500: '#66b626',
    950: '#000000',
  },
}

SCSS

$custom: #66b626;
$custom-light: #99cc6d;
$custom-dark: #000000;

JSON

{
  "hex": "#66b626",
  "rgb": {
    "r": 102,
    "g": 182,
    "b": 38
  },
  "hsl": {
    "h": 93.333,
    "s": 65.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.6983,
    "c": 0.18835,
    "h": 134.9
  },
  "luminance": 0.36421
}

Semantic roles & 50–950 ramp

primary

#66B626

secondary

#A16EC9

accent

#3FE89D

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0F1308

muted

#7E827B

Preview Lab

Preview with #66B626

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

Preview Lab → · Contrast checker → · Palette generator →