#66C91E#66C91E

#66C91E is a light, highly saturated yellow-green. Relative luminance 0.447; OKLCH L 74.6% C 0.214 H 136.2°. Best body text is #000000 at 9.94:1 contrast (WCAG AA passes).

Color values

HEX#66C91E
RGBrgb(102, 201, 30)
HSLhsl(95, 74%, 45%)
HSVhsv(95, 85%, 79%)
CMYKcmyk(49.3%, 0%, 85.1%, 21.2%)
CIE-LABlab(72.69, -55.22, 67.59)
CIE-LCHlch(72.69, 87.28, 129.25°)
OKLaboklab(74.63% -0.1541 0.1478)
OKLCHoklch(74.63% 0.214 136.2)
XYZxyz(26.5997, 44.6900, 8.4524)
Luminance0.4469 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66C91E #811EC9
analogous
#BBC91E #66C91E #1EC92C
triadic
#66C91E #1E66C9 #C91E66
tetradic
#66C91E #1EBBC9 #811EC9 #C92C1E
square
#66C91E #1EBBC9 #811EC9 #C92C1E
split-complementary
#66C91E #2C1EC9 #C91EBB
monochromatic
#305E0E #4B9416 #66C91E #85E341 #A8EB77

Accessibility & contrast

On white

2.11
#66C91E on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.94
#66C91E on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C91E
9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66C91E#FFFFFF#000000##000000
##66C91E1.002.119.949.94
#FFFFFF2.111.0021.0021.00
#0000009.9421.001.001.00
##0000009.9421.001.001.00

Color blindness preview

Protanopia (red-blind)
#D0B700
Deuteranopia (green-blind)
#C3AF35
Tritanopia (blue-blind)
#61C1AB
Achromatopsia (no color)
#B2B2B2

Design tokens & code

CSS
--color: #66c91e;
/* rgb */ color: rgb(102, 201, 30);
/* oklch */ color: oklch(74.6% 0.214 136.2);
Tailwind
colors: {
  custom: {
    50: '#9bda6c',
    500: '#66c91e',
    950: '#000000',
  },
}
SCSS
$custom: #66c91e;
$custom-light: #9bda6c;
$custom-dark: #000000;
JSON
{
  "hex": "#66c91e",
  "rgb": {
    "r": 102,
    "g": 201,
    "b": 30
  },
  "hsl": {
    "h": 94.737,
    "s": 74.026,
    "l": 45.294
  },
  "oklch": {
    "l": 0.74627,
    "c": 0.21351,
    "h": 136.2
  },
  "luminance": 0.44692
}

Semantic roles & 50–950 ramp

primary
#66C91E
secondary
#A971D2
accent
#37F1A3
background
#FAFDF7
surface
#F4FBED
border
#CED4C8
text
#0F1508
muted
#7F837B

Preview Lab

Preview with #66C91E

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

Preview Lab → · Contrast checker → · Palette generator →

#66C91E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva