Color #ffd811
A vivid, highly saturated medium yellow.
Conversions
#ffd811
rgb(255, 216, 17)
hsl(50.2, 100%, 53.3%)
hsv(50.2, 93.3%, 100%)
cmyk(0%, 15.3%, 93.3%, 0%)
lab(87.2, -2.29, 85.78)
lch(87.2, 85.81, 91.53)
oklch(88.9%, 0.1806, 95.56)
hwb(50.2, 6.7%, 0%)
Harmony colors
Accessibility
Black text reads better on this background (15.08:1). That passes WCAG AAA (≥7:1) for normal-size text.
Under color vision deficiencies
Protanopia
#efef73 · ΔE 11.8
Deuteranopia
#f1f47e · ΔE 13.1
Tritanopia
#fd959b · ΔE 46.6
Achromatopsia
#dadada · ΔE 29.3
Left half is the original, right half is the simulated appearance. See all 8 vision types →
Code
background-color: #ffd811;
bg-[#ffd811]
Related colors
Frequently asked questions
#ffd811 (#ffd811) is rgb(255, 216, 17) in RGB.
No, #ffd811 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.
Related tools
HEX to RGB Converter
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Try it → AccessibilityContrast Checker
Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.
Try it → GeneratorsPalette Generator
Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.
Try it →Build something with this color
Generate a full palette from #ffd811, or check how it holds up for accessibility.