Color #EFF45D Color / Colour Code #EFF45D
This page shows the hex color code for color #eff45d (#EFF45D). The colour is a yellow tone with 87% saturation and 66% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #EFF45D against common backgrounds.
Complementary Colors
#EFF45D paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 32, 62, and 92 degrees for harmonious combinations.
Triadic Palette
Three colors at 62, 182, and 302 degrees.
Color Palettes Using #EFF45D
Five shades at lightness levels 15% through 85% while keeping hue at 62 and saturation at 87%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 62 to 107 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 62 with its complement at 242 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 #EFF45D
Lightness variations at hue 62 and 87% saturation.
CSS Gradients with #EFF45D
Design Use Cases for #EFF45D
High-Impact Accent
With 87% saturation, #EFF45D 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 66% lightness, #EFF45D 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
#EFF45D is in the yellow spectrum (hue 62). 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 #EFF45D (hue 62) to its complement at hue 242. For a subtler effect, try pairing with an analogous color at hue 92. Use CSS: background: linear-gradient(135deg, #eff45d, #625df4);
CSS Code for #EFF45D
Similar Colors
Colors visually similar to #EFF45D based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #EFF45D across image editing and color design tools.
About Color #EFF45D (#EFF45D)
#EFF45D is a yellow color (colour) with RGB channel values of 239 red, 244 green, and 93 blue. The green channel is dominant by a ratio of 2.6:1 over the weakest channel. In HSL terms, the hue sits at 62 degrees with 87% saturation and 66% lightness, placing it in the neutral-to-cool range of the colour spectrum.
The perceived brightness of #EFF45D is 225/255 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 2% cyan, 0% magenta, 62% yellow, and 4% key (black).
The WCAG contrast ratio of #EFF45D against white is 1.18:1 and against black is 17.77:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 17.77:1, or use it exclusively for decorative purposes.
The complementary colour #625DF4 creates maximum visual tension when paired with #EFF45D. For more harmonious color combinations, use the analogous colours #F4AD5D and #A3F45D, 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 #EFF45D
- 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 #EFF45D?
- #EFF45D is Color #EFF45D, a yellow color (colour) with RGB(239, 244, 93), HSL(62, 87%, 66%), and CMYK(2%, 0%, 62%, 4%). Its perceived brightness is 225/255.
- Is #EFF45D accessible for text?
- Against white, #EFF45D has a contrast ratio of 1.18:1 (fails AA for normal text). Against black, it has 17.77:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #EFF45D?
- The complementary colour is #625DF4 (hue 242). For subtle color combinations, use analogous colours #F4AD5D and #A3F45D. The triadic palette adds #5DEFF4 and #F45DEF for vibrant variety.
- How do I use #EFF45D in CSS?
- Use any format: color: #eff45d; or rgb(239, 244, 93); or hsl(62, 87%, 66%). For CSS custom properties: --color-primary: 62 87% 66%; 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.