Color #FF9900 Color / Colour Code #FF9900
This page shows the hex color code for color #ff9900 (#FF9900). The colour is a orange tone with 100% saturation and 50% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #FF9900 against common backgrounds.
Complementary Colors
#FF9900 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 6, 36, and 66 degrees for harmonious combinations.
Triadic Palette
Three colors at 36, 156, and 276 degrees.
Color Palettes Using #FF9900
Five shades at lightness levels 15% through 85% while keeping hue at 36 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 36 to 81 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 36 with its complement at 216 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 #FF9900
Lightness variations at hue 36 and 100% saturation.
CSS Gradients with #FF9900
Design Use Cases for #FF9900
High-Impact Accent
With 100% saturation, #FF9900 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 50% lightness, #FF9900 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
#FF9900 sits in the orange range (hue 36). 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 #FF9900 (hue 36) to its complement at hue 216. For a subtler effect, try pairing with an analogous color at hue 66. Use CSS: background: linear-gradient(135deg, #ff9900, #0066ff);
CSS Code for #FF9900
Similar Colors
Colors visually similar to #FF9900 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #FF9900 across image editing and color design tools.
About Color #FF9900 (#FF9900)
#FF9900 is a orange color (colour) with RGB channel values of 255 red, 153 green, and 0 blue. The red channel is dominant by a ratio of 255.0:1 over the weakest channel. In HSL terms, the hue sits at 36 degrees with 100% saturation and 50% lightness, placing it in the warm range of the colour spectrum.
The perceived brightness of #FF9900 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, 40% magenta, 100% yellow, and 0% key (black).
The WCAG contrast ratio of #FF9900 against white is 2.14:1 and against black is 9.81:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 9.81:1, or use it exclusively for decorative purposes.
The complementary colour #0066FF creates maximum visual tension when paired with #FF9900. For more harmonious color combinations, use the analogous colours #FF1A00 and #E6FF00, 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 #FF9900
- 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 #FF9900?
- #FF9900 is Color #FF9900, a orange color (colour) with RGB(255, 153, 0), HSL(36, 100%, 50%), and CMYK(0%, 40%, 100%, 0%). Its perceived brightness is 166/255.
- Is #FF9900 accessible for text?
- Against white, #FF9900 has a contrast ratio of 2.14:1 (fails AA for normal text). Against black, it has 9.81:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #FF9900?
- The complementary colour is #0066FF (hue 216). For subtle color combinations, use analogous colours #FF1A00 and #E6FF00. The triadic palette adds #00FF99 and #9900FF for vibrant variety.
- How do I use #FF9900 in CSS?
- Use any format: color: #ff9900; or rgb(255, 153, 0); or hsl(36, 100%, 50%). For CSS custom properties: --color-primary: 36 100% 50%; 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.