Gradient Page

#3D99BE

#3D99BE is the HEX color code for
Boston Blue
#3D99BE

Boston Blue

Contrast
Light
Luminance
51%
Color Conversions
Formats for Boston Blue (#3D99BE) in various color spaces.
#3D99BE
61, 153, 190
197°, 51%, 49%
68%, 19%, 0%, 25%
0.644, 0.102, 228.2
--color-boston-blue: #3D99BE;

Shades & Tints

#ecf5f9
#c5e1ec
#9fcde0
#78b9d3
#52a6c7
#388cad
#2c6d87
#1f4e60
#132f3a
#061013
DarkestBaseLightest

Color Harmonies

Complementary

#3D99BE
#bd613d

Analogous

#3dbda1
#3D99BE
#3d59bd

Triadic

#3D99BE
#bd3d99
#99bd3d

Split Complementary

#3D99BE
#bd3d59
#bda13d

UI Component Examples

See how #3D99BE looks when applied to real interface components.

Interactive Elements
Surface & Accent
Pro Tip!

Use lighter tints for backgrounds to maintain readability while keeping brand identity.

Status Indicator
Active
# CSS Variables
Copy-paste these variables into your global CSS to use this palette instantly.
:root {
  /* Boston Blue Base */
  --color-primary: #3D99BE;
  --color-primary-rgb: 61 153 190;
  --color-primary-hsl: 197 51% 49%;
  
  /* Foreground text color based on contrast */
  --color-primary-foreground: #000000;

  /* Shades */
  --color-primary-50:  #ecf5f9;
  --color-primary-100: #c5e1ec;
  --color-primary-200: #9fcde0;
  --color-primary-300: #78b9d3;
  --color-primary-400: #52a6c7;
  --color-primary-500: #388cad;
  --color-primary-600: #2c6d87;
  --color-primary-700: #1f4e60;
  --color-primary-800: #132f3a;
  --color-primary-900: #061013;
}

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#3D99BE Hex Color | Boston Blue sl | UI Color Scheme Generator