Web Safe Color

Copy-ready color values

HEX#FFFF99
RGBrgb(255, 255, 153)
HSLhsl(60, 100%, 80%)
HSVhsv(60, 40%, 100%)
CMYK approx.cmyk(0, 0, 40, 0)

Color value table

FormatValueCopy
HEX#FFFF99
RGBrgb(255, 255, 153)
HSLhsl(60, 100%, 80%)
HSVhsv(60, 40%, 100%)
CMYK approx.cmyk(0, 0, 40, 0)
CSS keywordffff99

Contrast and classification

LightLightness1.05:1Contrast with white20.02:1Contrast with blackRed / OrangeColor family

Shade and tint preview

White 10%
#FFFFA3

White 30%
#FFFFB8

White 70%
#FFFFE0

White 90%
#FFFFF5

Black 10%
#E6E68A

Black 30%
#B3B36B

Black 70%
#4D4D2E

Black 90%
#1A1A0F

Harmony palettes

Complementary

#000066
#3D3D8B

Analogous

#FFFFA5
#FFF3A5

Triadic

#FF99FF
#99FFFF

Split complementary

#2E2E82
#000054

Using Ffff99

Ffff99 works best when it is chosen with contrast, surrounding colors, and interface state in mind. Use the HEX value for static CSS, RGB when you need channel-level control, and HSL when adjusting lightness or saturation for hover states. The CMYK value is an approximate screen-to-print conversion, so print workflows should still rely on calibrated design software or a printer profile.

CSS, SCSS, and Tailwind examples

:root {
  --color-ffff99: #ffff99;
}

.button-primary {
  background: var(--color-ffff99);
  color: #000000;
}

$ffff99: #ffff99;

// Tailwind arbitrary value
class="bg-[#ffff99] text-white"