Color #359EFE Color / Colour Code #359EFE
This page shows the hex color code for color #359efe (#359EFE). The colour is a blue tone with 99% saturation and 60% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #359EFE against common backgrounds.
Complementary Colors
#359EFE paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 179, 209, and 239 degrees for harmonious combinations.
Triadic Palette
Three colors at 209, 329, and 89 degrees.
Color Palettes Using #359EFE
Five shades at lightness levels 15% through 85% while keeping hue at 209 and saturation at 99%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 209 to 254 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 209 with its complement at 29 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 #359EFE
Lightness variations at hue 209 and 99% saturation.
CSS Gradients with #359EFE
Design Use Cases for #359EFE
High-Impact Accent
With 99% saturation, #359EFE 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 60% lightness, #359EFE 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.
Trust & Professional Identity
#359EFE sits in the blue range (hue 209). Blue is the world's most popular color for corporate identities because it conveys trust, stability, and competence. Use it for navigation bars, link text, form focus states, and any element where user confidence matters. Financial, healthcare, and technology brands rely heavily on this hue range.
Gradient Pairing
Create a gradient from #359EFE (hue 209) to its complement at hue 29. For a subtler effect, try pairing with an analogous color at hue 239. Use CSS: background: linear-gradient(135deg, #359efe, #fe9634);
CSS Code for #359EFE
Similar Colors
Colors visually similar to #359EFE based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #359EFE across image editing and color design tools.
About Color #359EFE (#359EFE)
#359EFE is a blue color (colour) with RGB channel values of 53 red, 158 green, and 254 blue. The blue channel is dominant by a ratio of 4.8:1 over the weakest channel. In HSL terms, the hue sits at 209 degrees with 99% saturation and 60% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #359EFE is 138/255 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 79% cyan, 38% magenta, 0% yellow, and 0% key (black).
The WCAG contrast ratio of #359EFE against white is 2.81:1 and against black is 7.47:1. This does not meet AA requirements on white. Use it on dark backgrounds where it achieves 7.47:1, or use it exclusively for decorative purposes.
The complementary colour #FE9634 creates maximum visual tension when paired with #359EFE. For more harmonious color combinations, use the analogous colours #34FEFB and #3437FE, 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 #359EFE
- 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 #359EFE?
- #359EFE is Color #359EFE, a blue color (colour) with RGB(53, 158, 254), HSL(209, 99%, 60%), and CMYK(79%, 38%, 0%, 0%). Its perceived brightness is 138/255.
- Is #359EFE accessible for text?
- Against white, #359EFE has a contrast ratio of 2.81:1 (fails AA for normal text). Against black, it has 7.47:1 (passes AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #359EFE?
- The complementary colour is #FE9634 (hue 29). For subtle color combinations, use analogous colours #34FEFB and #3437FE. The triadic palette adds #FE349C and #9CFE34 for vibrant variety.
- How do I use #359EFE in CSS?
- Use any format: color: #359efe; or rgb(53, 158, 254); or hsl(209, 99%, 60%). For CSS custom properties: --color-primary: 209 99% 60%; 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.