Color #FFF51E Color / Colour Code #FFF51E
This page shows the hex color code for color #fff51e (#FFF51E). The colour is a yellow tone with 100% saturation and 56% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #FFF51E against common backgrounds.
Complementary Colors
#FFF51E paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 27, 57, and 87 degrees for harmonious combinations.
Triadic Palette
Three colors at 57, 177, and 297 degrees.
Color Palettes Using #FFF51E
Five shades at lightness levels 15% through 85% while keeping hue at 57 and saturation at 100%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 57 to 102 degrees create a warm, unified palette. This analogous scheme works for marketing materials, seasonal campaigns, and any design that needs visual warmth without clashing colors.
Combines the base color at hue 57 with its complement at 237 and two adjacent cool tones. This split-complementary approach provides strong visual contrast while remaining more balanced than a pure complementary scheme.
Five evenly spaced hues at 40% saturation and 80% lightness. Pastels are gentle on the eyes and work well for dashboards, onboarding screens, category tags, and any interface where multiple distinct colors are needed without visual aggression.
Shades & Tints of #FFF51E
Lightness variations at hue 57 and 100% saturation.
CSS Gradients with #FFF51E
Design Use Cases for #FFF51E
High-Impact Accent
With 100% saturation, #FFF51E is highly vivid. Reserve this for elements that need maximum attention: primary action buttons, notification badges, error states, or promotional banners. Use sparingly alongside neutral tones to avoid visual fatigue.
Soft Accent & Highlight
With 56% lightness, #FFF51E has a softer, more approachable quality. It works well for hover states, subtle highlights, progress indicators, and secondary UI elements. This lightness range is particularly effective for tag backgrounds and status indicators.
Attention & Optimism
#FFF51E is in the yellow spectrum (hue 57). Yellow attracts attention faster than any other color. Use it for warning labels, featured content markers, star ratings, and tooltip backgrounds. Pair with dark text since yellow often fails contrast checks against white.
Gradient Pairing
Create a gradient from #FFF51E (hue 57) to its complement at hue 237. For a subtler effect, try pairing with an analogous color at hue 87. Use CSS: background: linear-gradient(135deg, #fff51e, #1f2aff);
CSS Code for #FFF51E
Similar Colors
Colors visually similar to #FFF51E based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #FFF51E across image editing and color design tools.
About Color #FFF51E (#FFF51E)
#FFF51E is a yellow color (colour) with RGB channel values of 255 red, 245 green, and 30 blue. The red channel is dominant by a ratio of 8.5:1 over the weakest channel. In HSL terms, the hue sits at 57 degrees with 100% saturation and 56% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #FFF51E is 223/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This means it appears bright to the human eye and is best paired with dark text for readability. For print production, the CMYK equivalent is 0% cyan, 4% magenta, 88% yellow, and 0% key (black).
The WCAG contrast ratio of #FFF51E against white is 1.15:1 and against black is 18.33:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 18.33:1, or use it exclusively for decorative purposes.
The complementary colour #1F2AFF creates maximum visual tension when paired with #FFF51E. For more harmonious color combinations, use the analogous colours #FF841F and #9AFF1F, which sit 30 degrees on either side of the hue wheel. To build a complete design system, start with the monochromatic scale above for consistent shade variations, then add one complementary or triadic accent for interactive elements.
How to Explore Color #FFF51E
- Enter your color value in HEX format.
- The tool converts it to RGB, HSL, CMYK format in real time.
- Copy the converted value to your clipboard.
What is HEX to RGB, HSL, CMYK color conversion
Converting from HEX to RGB, HSL, CMYK translates a color value between two different color models. Different color models are used in web design (HEX, RGB), print (CMYK), and color theory (HSL, HSV).
Related Tools & Colors
Frequently Asked Questions
- What color / colour is #FFF51E?
- #FFF51E is Color #FFF51E, a yellow color (colour) with RGB(255, 245, 30), HSL(57, 100%, 56%), and CMYK(0%, 4%, 88%, 0%). Its perceived brightness is 223/255.
- Is #FFF51E accessible for text?
- Against white, #FFF51E has a contrast ratio of 1.15:1 (fails AA for normal text). Against black, it has 18.33:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #FFF51E?
- The complementary colour is #1F2AFF (hue 237). For subtle color combinations, use analogous colours #FF841F and #9AFF1F. The triadic palette adds #1FFFF4 and #F41FFF for vibrant variety.
- How do I use #FFF51E in CSS?
- Use any format: color: #fff51e; or rgb(255, 245, 30); or hsl(57, 100%, 56%). For CSS custom properties: --color-primary: 57 100% 56%; then use it as hsl(var(--color-primary)).
- Is this color / colour explorer free?
- Yes, completely free with no signup required. All colour calculations run in your browser. You can explore any valid hex color code, not just the pre-generated palette.