Color #0B2ADA Color / Colour Code #0B2ADA
This page shows the hex color code for color #0b2ada (#0B2ADA). The colour is a blue tone with 90% saturation and 45% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #0B2ADA against common backgrounds.
Complementary Colors
#0B2ADA paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 201, 231, and 261 degrees for harmonious combinations.
Triadic Palette
Three colors at 231, 351, and 111 degrees.
Color Palettes Using #0B2ADA
Five shades at lightness levels 15% through 85% while keeping hue at 231 and saturation at 90%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 231 to 276 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 231 with its complement at 51 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 #0B2ADA
Lightness variations at hue 231 and 90% saturation.
CSS Gradients with #0B2ADA
Design Use Cases for #0B2ADA
High-Impact Accent
With 90% saturation, #0B2ADA 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 45% lightness, #0B2ADA 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
#0B2ADA sits in the blue range (hue 231). 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 #0B2ADA (hue 231) to its complement at hue 51. For a subtler effect, try pairing with an analogous color at hue 261. Use CSS: background: linear-gradient(135deg, #0b2ada, #dabb0b);
CSS Code for #0B2ADA
Similar Colors
Colors visually similar to #0B2ADA based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #0B2ADA across image editing and color design tools.
About Color #0B2ADA (#0B2ADA)
#0B2ADA is a blue color (colour) with RGB channel values of 11 red, 42 green, and 218 blue. The blue channel is dominant by a ratio of 19.8:1 over the weakest channel. In HSL terms, the hue sits at 231 degrees with 90% saturation and 45% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #0B2ADA is 53/255 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 95% cyan, 81% magenta, 0% yellow, and 15% key (black).
The WCAG contrast ratio of #0B2ADA against white is 8.91:1 and against black is 2.36:1. This exceeds the AAA requirement (7:1) for normal text on white, making it excellent for body text and small UI labels on light backgrounds.
The complementary colour #DABB0B creates maximum visual tension when paired with #0B2ADA. For more harmonious color combinations, use the analogous colours #0B92DA and #540BDA, 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 #0B2ADA
- 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 #0B2ADA?
- #0B2ADA is Color #0B2ADA, a blue color (colour) with RGB(11, 42, 218), HSL(231, 90%, 45%), and CMYK(95%, 81%, 0%, 15%). Its perceived brightness is 53/255.
- Is #0B2ADA accessible for text?
- Against white, #0B2ADA has a contrast ratio of 8.91:1 (passes AA for normal text). Against black, it has 2.36:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #0B2ADA?
- The complementary colour is #DABB0B (hue 51). For subtle color combinations, use analogous colours #0B92DA and #540BDA. The triadic palette adds #DA0B2A and #2ADA0B for vibrant variety.
- How do I use #0B2ADA in CSS?
- Use any format: color: #0b2ada; or rgb(11, 42, 218); or hsl(231, 90%, 45%). For CSS custom properties: --color-primary: 231 90% 45%; 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.