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  3. #edff21

Sulfur Yellow (#edff21) Color Meaning, Codes and Information

A complete guide to Sulfur Yellow (#edff21) covering color values, harmonies, shades, meaning, and practical uses across design, branding, and everyday visuals.

Color CodesMeaningConversionShades & TintsPalettesContrastBlindnessCSS & StylesPatternsIconsMockupsRelatedFAQs
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Sulfur Yellow (#edff21) Color Information

Sulfur Yellow (#EDFF21) is defined as a vivid yellow. It features RGB values of (237, 255, 33), HSL settings of (65°, 100%, 56%), and a CMYK profile of (7%, 0%, 87%, 0%). Flanked by Luminous Bright Orange (#FFA420) and Saffron (#F4C430), this shade provides a distinct alternative within its hue family. Against Psilocybin Purple (#A020F0), #EDFF21 leans deeper, marked by its distinct tonal shift.

This color pairs well with Luminous Bright Orange (#FFA420), Lawn Green (#7CFC00), and Blue (Crayola) (#1F75FE), producing visually striking combinations; however, shades such as Neon Ice (#15F4EE), Neon Pink (#FF10F0), or Bluebonnet (#1C1CF0) tend to clash with it, creating visual tension. In professional settings, #EDFF21 is frequently applied in branding, signage, and high-visibility designs.

Clear image showing Sulfur Yellow color swatch with hex value #EDFF21 and RGB value (237,255,33)
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Sulfur Yellow (#edff21) Color Meaning

Sulfur Yellow (#EDFF21) is a bright, neon-like yellow with green undertones, part of the vivid yellow spectrum. It conveys energy, illumination, and alertness. Sulfur Yellow (#EDFF21) evokes the brilliance of natural sulfur crystals, reflecting vibrancy and striking visual impact. Historically, sulfur pigments were used in early chemistry, alchemy, and European painting, often representing transformation, energy, and the elemental force of fire. Sulfur Yellow (#EDFF21) symbolizes creativity, illumination, and innovation in modern design and scientific representation. Sulfur Yellow (#EDFF21) communicates optimism, attention, and intensity. Its electric vibrancy draws focus and energizes environments. Sulfur Yellow (#EDFF21) also symbolizes intellectual clarity, dynamic action, and innovation, making it suitable for bold graphic design, education, and experimental art.

Color Conversion

Accurate conversions of Sulfur Yellow (#edff21) across RGB, Hex, CMYK, HSL, and Lab ensure consistent color fidelity across digital, print, and design applications.

HEX
#edff21
RGB
rgb(237, 255, 33)
HSL
hsl(65°, 100%, 56%)
CMYK
cmyk(7%, 0%, 87%, 0%)
HSV
hsv(65°, 87%, 100%)
XYZ
70.9596 89.6343 15.0000
Yxy
89.6343 0.4041 0.5105
Hunter Lab
94.6754 -12.5298 23.0495
CIE-Lab
95.8449 -28.5027 89.5423

RGB Values & CMYK Values

Detailed RGB and CMYK values of Sulfur Yellow (#edff21) displayed in a horizontal bar provide clear reference for digital and print color accuracy.

RGB Channels

Red237 / 255 (93%)
93%
Green255 / 255 (100%)
100%
Blue33 / 255 (13%)
13%

CMYK Ink Density

Cyan7 / 100 (7%)
Magenta0 / 100 (0%)
Yellow87 / 100 (87%)
87%
Key (Black)0 / 100 (0%)

Color Variations

A full range of Sulfur Yellow (#edff21) variations, including tints, shades, and tones, provides highlights, depth, and subtle desaturated options for UI design.

Color Harmonies

Harmonious color schemes for Sulfur Yellow (#edff21) created using the color wheel ensure visually balanced palettes.

Analogous

Colors adjacent on the color wheel (30° apart)

Complementary

Colors opposite on the color wheel (180° apart)

Split Complementary

Three colors using one base hue and the two hues beside its opposite

Triadic

Three colors evenly spaced (120° apart)

Tetradic

Four colors forming a rectangle on the wheel

Square

Four colors evenly spaced (90° apart)

Double Split Complementary

Four colors formed from two base hues and the colors next to their opposites

Monochromatic

Variations of a single hue

Contrast Checker (WCAG)

Luminance contrast ratios for Sulfur Yellow (#edff21) against standard backgrounds ensure readable, accessible text following Contrast Checker and WCAG 2.1 AA/AAA standards.

#FFFFFF
#edff21

Sample Text

This is how your text will look with these colors.

Large Text (18pt+)

1.11:1
✗WCAG AA
✗WCAG AAA

Normal Text

1.11:1
✗WCAG AA
✗WCAG AAA

UI Components

1.11:1
✗WCAG AA
✗WCAG AAA

Color Blindness Simulator

Simulated views of Sulfur Yellow (#edff21) for different color vision deficiencies help identify potential confusion using the Color Blindness Simulator.

Normal Vision

Sulfur Yellow (#edff21)

protanopia

#f5f557

Note: These simulations are approximations. Actual color vision deficiency varies by individual.

CSS Examples

Background Color

background-color: #edff21;

Text Color

color: #edff21;

Sample Text

Border Color

border: 2px solid #edff21;

Box Shadow

box-shadow: 0 4px 6px #edff2140;

Text Shadow

text-shadow: 2px 2px 4px #edff21;

Sample Text

Gradient

background: linear-gradient(135deg, #edff21 0%, #99a700 100%);

Seamless Patterns

High-resolution seamless patterns featuring Sulfur Yellow (#edff21) provide ready-to-use backgrounds, wallpapers, and print designs for any project.

Icons

A collection of popular icons in Sulfur Yellow (#edff21) offers ready-to-use visuals for interfaces, designs, and creative projects.

Real-World Applications

Real-world mockups of Sulfur Yellow (#edff21) showcase its versatility across fashion, interiors, branding, and product packaging.

Related Colors

Colors related to Sulfur Yellow (#edff21) in hue, saturation, and lightness provide harmonious and complementary options for cohesive color schemes.

#B0BF1A
Acid Green
#B4C424
Peridot
#D1E231
Lemon Lime
#CAE00D
Bitter Lemon
#9FA91F
Citron
#E3FF00
Neon Chartreuse
#8B8C7A
Stone Grey
#454B1B
Army Green
#DFFF00
Lime Yellow

Useful Color Tools

A curated set of tools to help apply, analyze, and manage colors effectively in your projects

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Sulfur Yellow (#edff21) Color FAQs

Frequently asked questions about Sulfur Yellow (#edff21) color meaning, symbolism, and applications. Click on any question to expand detailed answers.

← Previous ColorLuminous Bright Orange (#FFA420) Color MeaningNext Color →Saffron (#F4C430) Color Meaning
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Color Schemes

Diagonal Stripes
Polka Dots
Chevron
Diamond Grid
Hexagon
Waves
Crosshatch
Zigzag
Brick Wall
Triangles
Circles Grid
Herringbone
Fashion
Colored T-Shirt
Fashion
Baseball Cap
Interior
Living Room
Exterior
Office Complex
BRAND
Brands
Aluminum Can
Vehicle
Glossy Sportscar
Brands
Shopping Bag
Interior
Matte Wall
Brands
Flagship Phone