Color #005FB3 Color / Colour Code #005FB3
This page shows the hex color code for color #005fb3 (#005FB3). The colour is a blue tone with 100% saturation and 35% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #005FB3 against common backgrounds.
Complementary Colors
#005FB3 paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 178, 208, and 238 degrees for harmonious combinations.
Triadic Palette
Three colors at 208, 328, and 88 degrees.
Color Palettes Using #005FB3
Five shades at lightness levels 15% through 85% while keeping hue at 208 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 208 to 253 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 208 with its complement at 28 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 #005FB3
Lightness variations at hue 208 and 100% saturation.
CSS Gradients with #005FB3
Design Use Cases for #005FB3
High-Impact Accent
With 100% saturation, #005FB3 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.
Primary Interface Color
At 35% lightness, #005FB3 is in the mid-range, making it ideal for interactive elements like buttons, links, and selected states. This lightness level ensures good contrast against both light and dark adjacent elements in most layouts.
Trust & Professional Identity
#005FB3 sits in the blue range (hue 208). 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 #005FB3 (hue 208) to its complement at hue 28. For a subtler effect, try pairing with an analogous color at hue 238. Use CSS: background: linear-gradient(135deg, #005fb3, #b35300);
CSS Code for #005FB3
Similar Colors
Colors visually similar to #005FB3 based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #005FB3 across image editing and color design tools.
About Color #005FB3 (#005FB3)
#005FB3 is a blue color (colour) with RGB channel values of 0 red, 95 green, and 179 blue. The blue channel is dominant by a ratio of 179.0:1 over the weakest channel. In HSL terms, the hue sits at 208 degrees with 100% saturation and 35% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #005FB3 is 76/255 using the ITU-R BT.601 luma formula (0.299R + 0.587G + 0.114B). This appears dark to the human eye, so pair it with light text for adequate readability. For print production, the CMYK equivalent is 100% cyan, 47% magenta, 0% yellow, and 30% key (black).
The WCAG contrast ratio of #005FB3 against white is 6.39:1 and against black is 3.29:1. This meets the AA requirement (4.5:1) for normal text on white. For AAA compliance, consider darkening to at least 25% lightness.
The complementary colour #B35300 creates maximum visual tension when paired with #005FB3. For more harmonious color combinations, use the analogous colours #00B3AD and #0006B3, 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 #005FB3
- 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 #005FB3?
- #005FB3 is Color #005FB3, a blue color (colour) with RGB(0, 95, 179), HSL(208, 100%, 35%), and CMYK(100%, 47%, 0%, 30%). Its perceived brightness is 76/255.
- Is #005FB3 accessible for text?
- Against white, #005FB3 has a contrast ratio of 6.39:1 (passes AA for normal text). Against black, it has 3.29:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #005FB3?
- The complementary colour is #B35300 (hue 28). For subtle color combinations, use analogous colours #00B3AD and #0006B3. The triadic palette adds #B3005F and #5FB300 for vibrant variety.
- How do I use #005FB3 in CSS?
- Use any format: color: #005fb3; or rgb(0, 95, 179); or hsl(208, 100%, 35%). For CSS custom properties: --color-primary: 208 100% 35%; 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.