Color #EFCF52 Color / Colour Code #EFCF52
This page shows the hex color code for color #efcf52 (#EFCF52). The colour is a yellow tone with 83% saturation and 63% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #EFCF52 against common backgrounds.
Complementary Colors
#EFCF52 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 18, 48, and 78 degrees for harmonious combinations.
Triadic Palette
Three colors at 48, 168, and 288 degrees.
Color Palettes Using #EFCF52
Five shades at lightness levels 15% through 85% while keeping hue at 48 and saturation at 83%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 48 to 93 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 48 with its complement at 228 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 #EFCF52
Lightness variations at hue 48 and 83% saturation.
CSS Gradients with #EFCF52
Design Use Cases for #EFCF52
Vibrant Brand Color
#EFCF52 has a strong 83% saturation that makes it ideal for brand identity elements. Use it for logos, primary call-to-action buttons, hero section accents, and marketing materials where visual impact matters. This saturation level is eye-catching without being harsh.
Soft Accent & Highlight
With 63% lightness, #EFCF52 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
#EFCF52 is in the yellow spectrum (hue 48). 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 #EFCF52 (hue 48) to its complement at hue 228. For a subtler effect, try pairing with an analogous color at hue 78. Use CSS: background: linear-gradient(135deg, #efcf52, #5272ef);
CSS Code for #EFCF52
Similar Colors
Colors visually similar to #EFCF52 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #EFCF52 across image editing and color design tools.
About Color #EFCF52 (#EFCF52)
#EFCF52 is a yellow color (colour) with RGB channel values of 239 red, 207 green, and 82 blue. The red channel is dominant by a ratio of 2.9:1 over the weakest channel. In HSL terms, the hue sits at 48 degrees with 83% saturation and 63% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #EFCF52 is 202/255 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, 13% magenta, 66% yellow, and 6% key (black).
The WCAG contrast ratio of #EFCF52 against white is 1.53:1 and against black is 13.72:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 13.72:1, or use it exclusively for decorative purposes.
The complementary colour #5272EF creates maximum visual tension when paired with #EFCF52. For more harmonious color combinations, use the analogous colours #EF8152 and #C0EF52, 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 #EFCF52
- 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 #EFCF52?
- #EFCF52 is Color #EFCF52, a yellow color (colour) with RGB(239, 207, 82), HSL(48, 83%, 63%), and CMYK(0%, 13%, 66%, 6%). Its perceived brightness is 202/255.
- Is #EFCF52 accessible for text?
- Against white, #EFCF52 has a contrast ratio of 1.53:1 (fails AA for normal text). Against black, it has 13.72:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #EFCF52?
- The complementary colour is #5272EF (hue 228). For subtle color combinations, use analogous colours #EF8152 and #C0EF52. The triadic palette adds #52EFD0 and #D052EF for vibrant variety.
- How do I use #EFCF52 in CSS?
- Use any format: color: #efcf52; or rgb(239, 207, 82); or hsl(48, 83%, 63%). For CSS custom properties: --color-primary: 48 83% 63%; 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.