#A9D128#A9D128

#A9D128 is a light, vivid yellow-green. Relative luminance 0.542; OKLCH L 80.4% C 0.186 H 123.0°. Best body text is #000000 at 11.84:1 contrast (WCAG AA passes).

Color values

HEX#A9D128
RGBrgb(169, 209, 40)
HSLhsl(74, 68%, 49%)
HSVhsv(74, 81%, 82%)
CMYKcmyk(19.1%, 0%, 80.9%, 18%)
CIE-LABlab(78.57, -34.36, 71.68)
CIE-LCHlch(78.57, 79.49, 115.61°)
OKLaboklab(80.36% -0.1013 0.1562)
OKLCHoklch(80.36% 0.186 123)
XYZxyz(39.5462, 54.1889, 10.3832)
Luminance0.5419 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A9D128 #5028D1
analogous
#D1A528 #A9D128 #55D128
triadic
#A9D128 #28A9D1 #D128A9
tetradic
#A9D128 #28D1A5 #5028D1 #D12855
square
#A9D128 #28D1A5 #5028D1 #D12855
split-complementary
#A9D128 #2855D1 #A528D1
monochromatic
#566A14 #7F9E1E #A9D128 #BFDF57 #D2E98B

Accessibility & contrast

On white

1.77
#A9D128 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.84
#A9D128 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A9D128
11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A9D128#FFFFFF#000000##000000
##A9D1281.001.7711.8411.84
#FFFFFF1.771.0021.0021.00
#00000011.8421.001.001.00
##00000011.8421.001.001.00

Color blindness preview

Protanopia (red-blind)
#DEC400
Deuteranopia (green-blind)
#D8C23B
Tritanopia (blue-blind)
#B2C6B3
Achromatopsia (no color)
#C2C2C2

Design tokens & code

CSS
--color: #a9d128;
/* rgb */ color: rgb(169, 209, 40);
/* oklch */ color: oklch(80.4% 0.186 123.0);
Tailwind
colors: {
  custom: {
    50: '#c7df72',
    500: '#a9d128',
    950: '#000000',
  },
}
SCSS
$custom: #a9d128;
$custom-light: #c7df72;
$custom-dark: #000000;
JSON
{
  "hex": "#a9d128",
  "rgb": {
    "r": 169,
    "g": 209,
    "b": 40
  },
  "hsl": {
    "h": 74.201,
    "s": 67.871,
    "l": 48.824
  },
  "oklch": {
    "l": 0.80362,
    "c": 0.18618,
    "h": 123
  },
  "luminance": 0.54189
}

Semantic roles & 50–950 ramp

primary
#A9D128
secondary
#3B2974
accent
#3DEB66
background
#FEFEFB
surface
#FBFCF1
border
#D4D5CB
text
#141509
muted
#83847D

Preview Lab

Preview with #A9D128

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

Preview Lab → · Contrast checker → · Palette generator →

#A9D128 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva