Yellow

Luminous Yellow

Luminous Yellow
#FFFF33Click to copy

Luminous Yellow Parameter Conversion Table

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HEX#FFFF33Copy
RGBrgb(255, 255, 51)Copy
HSLhsl(60, 100%, 60%)Copy
HSV/HSBhsv(60, 80%, 100%)Copy
CMYKcmyk(0%, 0%, 80%, 0%)Copy
Complementary
#FFFF33
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#3333FF
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Analogous
#FF9933
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#99FF33
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Split Complementary
#3399FF
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#9933FF
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Monochromatic
#FFFF33
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#F7F7A1
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#FFFFFF
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#CCCC00
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#666600
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#000000
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Luminous Yellow WCAG Accessibility Contrast

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The contrast ratio of this color against common foreground/background colors (based on the WCAG 2.1 standard)

Sample text Aa
White background #FFFFFF
1.07 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Black background #000000
19.60 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Light gray background #F5F5F5
1.02 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Dark gray background #333333
11.79 : 1
AA NormalAA LargeAAA NormalAAA Large

Luminous Yellow Shade Variants

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Lighten with White Mixed with white for a lighter, softer color
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Darken with Black Mixed with black for a deeper, heavier color
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Muted / Morandi Mixed with gray and desaturated for a sophisticated muted tone
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Luminous Yellow Color Introduction

Definition

Luminous Yellow (HEX #FFFF33) has the RGB value rgb(255, 255, 51), the HSL value hsl(60°, 100%, 60%) and the CMYK print value cmyk(0%, 0%, 80%, 0%). In terms of color schemes, the complement of Luminous Yellow is #3333FF, and placing the two side by side produces a striking, eye-catching contrast; paired with the analogous colors #FF9933 and #99FF33 that sit next to it on the color wheel, it transitions naturally and harmoniously; in a split-complementary scheme (#3399FF, #9933FF) it keeps its contrast tension without losing layering; and a monochromatic scheme built on Luminous Yellow uses gradients of lightness and saturation to create a unified design with a strong sense of depth. Under the WCAG accessibility standard, Luminous Yellow has a contrast ratio of 1.07:1 against white and 19.60:1 against black; paired with a black background it reaches AAA, making it ideal for text and accent colors in dark mode.

Color Characteristics

Yellow is the brightest of all colors, evoking sunlight, wheat fields and lemons. Light and eye-catching, it plays an important role in playful, dining and warning designs. Specifically, Luminous Yellow has a lightness of 60% and a saturation of 100%, striking and generous as a background or primary color, offering good readability with either light or dark text; moreover, its saturation is extremely high and its visual tension is strong, so it works best used sparingly as a focal accent. In a word: A high-visibility warning.

Color Psychology

Yellow can evoke happiness, hope and curiosity, with a marked invigorating effect; psychologically it symbolizes brightness, wisdom and youth. For this reason Luminous Yellow tends to leave a first impression of being bright and cheerful in the viewer’s mind, and this emotional tone also defines the role it plays in design.

Best Uses

Yellow suits children’s brands, warning signs, fast-moving consumer packaging and any scene that needs to be bright and eye-catching. In real projects, Luminous Yellow is also often used as a light background or supporting negative space; in “Yellow”-themed designs, the adjacent colors or lightness gradients built around it quickly establish a cohesive, clearly layered color scheme.

Luminous Yellow Featured In

This color is included in the following color cards and color families. Click a card to browse more colors in the corresponding collection.