Color #2D439D Color / Colour Code #2D439D
This page shows the hex color code for color #2d439d (#2D439D). The colour is a blue tone with 55% saturation and 40% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #2D439D against common backgrounds.
Complementary Colors
#2D439D paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 198, 228, and 258 degrees for harmonious combinations.
Triadic Palette
Three colors at 228, 348, and 108 degrees.
Color Palettes Using #2D439D
Five shades at lightness levels 15% through 85% while keeping hue at 228 and saturation at 55%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 228 to 273 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 228 with its complement at 48 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 #2D439D
Lightness variations at hue 228 and 55% saturation.
CSS Gradients with #2D439D
Design Use Cases for #2D439D
Balanced UI Color
At 55% saturation, #2D439D strikes a balance between vibrancy and restraint. This makes it versatile for primary UI elements like navigation bars, card headers, and form accents. It draws attention without overwhelming adjacent content.
Primary Interface Color
At 40% lightness, #2D439D 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
#2D439D sits in the blue range (hue 228). 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 #2D439D (hue 228) to its complement at hue 48. For a subtler effect, try pairing with an analogous color at hue 258. Use CSS: background: linear-gradient(135deg, #2d439d, #9e882e);
CSS Code for #2D439D
Similar Colors
Colors visually similar to #2D439D based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #2D439D across image editing and color design tools.
About Color #2D439D (#2D439D)
#2D439D is a blue color (colour) with RGB channel values of 45 red, 67 green, and 157 blue. The blue channel is dominant by a ratio of 3.5:1 over the weakest channel. In HSL terms, the hue sits at 228 degrees with 55% saturation and 40% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #2D439D is 71/255 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 71% cyan, 57% magenta, 0% yellow, and 38% key (black).
The WCAG contrast ratio of #2D439D against white is 8.75:1 and against black is 2.40:1. 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 #9E882E creates maximum visual tension when paired with #2D439D. For more harmonious color combinations, use the analogous colours #2E7C9E and #502E9E, 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 #2D439D
- 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 #2D439D?
- #2D439D is Color #2D439D, a blue color (colour) with RGB(45, 67, 157), HSL(228, 55%, 40%), and CMYK(71%, 57%, 0%, 38%). Its perceived brightness is 71/255.
- Is #2D439D accessible for text?
- Against white, #2D439D has a contrast ratio of 8.75:1 (passes AA for normal text). Against black, it has 2.40:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #2D439D?
- The complementary colour is #9E882E (hue 48). For subtle color combinations, use analogous colours #2E7C9E and #502E9E. The triadic palette adds #9E2E44 and #449E2E for vibrant variety.
- How do I use #2D439D in CSS?
- Use any format: color: #2d439d; or rgb(45, 67, 157); or hsl(228, 55%, 40%). For CSS custom properties: --color-primary: 228 55% 40%; 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.