Color #EF9151 Color / Colour Code #EF9151
This page shows the hex color code for color #ef9151 (#EF9151). The colour is a orange 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 #EF9151 against common backgrounds.
Complementary Colors
#EF9151 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 354, 24, and 54 degrees for harmonious combinations.
Triadic Palette
Three colors at 24, 144, and 264 degrees.
Color Palettes Using #EF9151
Five shades at lightness levels 15% through 85% while keeping hue at 24 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 24 to 69 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 24 with its complement at 204 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 #EF9151
Lightness variations at hue 24 and 83% saturation.
CSS Gradients with #EF9151
Design Use Cases for #EF9151
Vibrant Brand Color
#EF9151 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, #EF9151 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.
Warmth & Enthusiasm
#EF9151 sits in the orange range (hue 24). Orange combines the energy of red with the warmth of yellow. It works naturally for progress indicators, pricing highlights, "new" badges, and friendly call-to-action buttons. Food and fitness brands frequently use this hue range.
Gradient Pairing
Create a gradient from #EF9151 (hue 24) to its complement at hue 204. For a subtler effect, try pairing with an analogous color at hue 54. Use CSS: background: linear-gradient(135deg, #ef9151, #52b0ef);
CSS Code for #EF9151
Similar Colors
Colors visually similar to #EF9151 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #EF9151 across image editing and color design tools.
About Color #EF9151 (#EF9151)
#EF9151 is a orange color (colour) with RGB channel values of 239 red, 145 green, and 81 blue. The red channel is dominant by a ratio of 3.0:1 over the weakest channel. In HSL terms, the hue sits at 24 degrees with 83% saturation and 63% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #EF9151 is 166/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This is a medium-brightness color that can work with either dark or light text depending on font weight and size. For print production, the CMYK equivalent is 0% cyan, 39% magenta, 66% yellow, and 6% key (black).
The WCAG contrast ratio of #EF9151 against white is 2.38:1 and against black is 8.84:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 8.84:1, or use it exclusively for decorative purposes.
The complementary colour #52B0EF creates maximum visual tension when paired with #EF9151. For more harmonious color combinations, use the analogous colours #EF5262 and #EFDF52, 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 #EF9151
- 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 #EF9151?
- #EF9151 is Color #EF9151, a orange color (colour) with RGB(239, 145, 81), HSL(24, 83%, 63%), and CMYK(0%, 39%, 66%, 6%). Its perceived brightness is 166/255.
- Is #EF9151 accessible for text?
- Against white, #EF9151 has a contrast ratio of 2.38:1 (fails AA for normal text). Against black, it has 8.84:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #EF9151?
- The complementary colour is #52B0EF (hue 204). For subtle color combinations, use analogous colours #EF5262 and #EFDF52. The triadic palette adds #52EF91 and #9152EF for vibrant variety.
- How do I use #EF9151 in CSS?
- Use any format: color: #ef9151; or rgb(239, 145, 81); or hsl(24, 83%, 63%). For CSS custom properties: --color-primary: 24 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.