Color #3964BB Color / Colour Code #3964BB
This page shows the hex color code for color #3964bb (#3964BB). The colour is a blue tone with 53% saturation and 48% lightness. Explore its conversions, colour palettes, gradients, accessibility data, and CSS code below.
Color Conversions
Accessibility Contrast
WCAG contrast ratios for #3964BB against common backgrounds.
Complementary Colors
#3964BB paired with its color wheel opposite for maximum contrast.
Analogous Colors
Hues at 190, 220, and 250 degrees for harmonious combinations.
Triadic Palette
Three colors at 220, 340, and 100 degrees.
Color Palettes Using #3964BB
Five shades at lightness levels 15% through 85% while keeping hue at 220 and saturation at 53%. Use the darkest shade for text and the lightest for backgrounds to build a cohesive single-hue design system.
Adjacent hues from 220 to 265 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 220 with its complement at 40 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 #3964BB
Lightness variations at hue 220 and 53% saturation.
CSS Gradients with #3964BB
Design Use Cases for #3964BB
Balanced UI Color
At 53% saturation, #3964BB 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 48% lightness, #3964BB 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
#3964BB sits in the blue range (hue 220). 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 #3964BB (hue 220) to its complement at hue 40. For a subtler effect, try pairing with an analogous color at hue 250. Use CSS: background: linear-gradient(135deg, #3964bb, #bb903a);
CSS Code for #3964BB
Similar Colors
Colors visually similar to #3964BB based on RGB, lightness, and hue variations.
Use This Color in Design Tools
Apply #3964BB across image editing and color design tools.
About Color #3964BB (#3964BB)
#3964BB is a blue color (colour) with RGB channel values of 57 red, 100 green, and 187 blue. The blue channel is dominant by a ratio of 3.3:1 over the weakest channel. In HSL terms, the hue sits at 220 degrees with 53% saturation and 48% lightness, placing it in the cool range of the colour spectrum.
The perceived brightness of #3964BB is 97/255 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 70% cyan, 47% magenta, 0% yellow, and 27% key (black).
The WCAG contrast ratio of #3964BB against white is 5.65:1 and against black is 3.71:1. This meets the AA requirement (4.5:1) for normal text on white. For AAA compliance, consider darkening to at least 34% lightness.
The complementary colour #BB903A creates maximum visual tension when paired with #3964BB. For more harmonious color combinations, use the analogous colours #3AA6BB and #4F3ABB, 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 #3964BB
- 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 #3964BB?
- #3964BB is Color #3964BB, a blue color (colour) with RGB(57, 100, 187), HSL(220, 53%, 48%), and CMYK(70%, 47%, 0%, 27%). Its perceived brightness is 97/255.
- Is #3964BB accessible for text?
- Against white, #3964BB has a contrast ratio of 5.65:1 (passes AA for normal text). Against black, it has 3.71:1 (fails AA). Use the contrast checker tool for custom background pairings.
- What colours pair well with #3964BB?
- The complementary colour is #BB903A (hue 40). For subtle color combinations, use analogous colours #3AA6BB and #4F3ABB. The triadic palette adds #BB3A65 and #65BB3A for vibrant variety.
- How do I use #3964BB in CSS?
- Use any format: color: #3964bb; or rgb(57, 100, 187); or hsl(220, 53%, 48%). For CSS custom properties: --color-primary: 220 53% 48%; 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.