Color #2A5DBB Color / Colour Code #2A5DBB
This page shows the hex color code for color #2a5dbb (#2A5DBB). The colour is a blue tone with 63% saturation and 45% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #2A5DBB against common backgrounds.
Complementary Colors
#2A5DBB paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 189, 219, and 249 degrees for harmonious combinations.
Triadic Palette
Three colors at 219, 339, and 99 degrees.
Color Palettes Using #2A5DBB
Five shades at lightness levels 15% through 85% while keeping hue at 219 and saturation at 63%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 219 to 264 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 219 with its complement at 39 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 #2A5DBB
Lightness variations at hue 219 and 63% saturation.
CSS Gradients with #2A5DBB
Design Use Cases for #2A5DBB
Vibrant Brand Color
#2A5DBB has a strong 63% 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.
Primary Interface Color
At 45% lightness, #2A5DBB 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
#2A5DBB sits in the blue range (hue 219). 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 #2A5DBB (hue 219) to its complement at hue 39. For a subtler effect, try pairing with an analogous color at hue 249. Use CSS: background: linear-gradient(135deg, #2a5dbb, #bb882a);
CSS Code for #2A5DBB
Similar Colors
Colors visually similar to #2A5DBB based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #2A5DBB across image editing and color design tools.
About Color #2A5DBB (#2A5DBB)
#2A5DBB is a blue color (colour) with RGB channel values of 42 red, 93 green, and 187 blue. The blue channel is dominant by a ratio of 4.5:1 over the weakest channel. In HSL terms, the hue sits at 219 degrees with 63% saturation and 45% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #2A5DBB is 88/255 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 78% cyan, 50% magenta, 0% yellow, and 27% key (black).
The WCAG contrast ratio of #2A5DBB against white is 6.21:1 and against black is 3.38:1. This meets the AA requirement (4.5:1) for normal text on white. For AAA compliance, consider darkening to at least 31% lightness.
The complementary colour #BB882A creates maximum visual tension when paired with #2A5DBB. For more harmonious color combinations, use the analogous colours #2AA5BB and #402ABB, 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 #2A5DBB
- 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 #2A5DBB?
- #2A5DBB is Color #2A5DBB, a blue color (colour) with RGB(42, 93, 187), HSL(219, 63%, 45%), and CMYK(78%, 50%, 0%, 27%). Its perceived brightness is 88/255.
- Is #2A5DBB accessible for text?
- Against white, #2A5DBB has a contrast ratio of 6.21:1 (passes AA for normal text). Against black, it has 3.38:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #2A5DBB?
- The complementary colour is #BB882A (hue 39). For subtle color combinations, use analogous colours #2AA5BB and #402ABB. The triadic palette adds #BB2A5D and #5DBB2A for vibrant variety.
- How do I use #2A5DBB in CSS?
- Use any format: color: #2a5dbb; or rgb(42, 93, 187); or hsl(219, 63%, 45%). For CSS custom properties: --color-primary: 219 63% 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.