Steel Blue (Blue)
#3666BA
RGB: 54, 102, 186
Color OverviewHEX #3666BA
#3666BA Color Code Information
In the RGB color space, #3666BA is composed of 21% red, 40% green, and 73% blue. In the HSL color space, it has a hue of 218°, saturation of 55%, and lightness of 47%.
HEX
#3666BA
RGB
54, 102, 186
HSL
218°, 55%, 47%
HSV
218°, 71%, 73%
CMYK
71%, 45%, 0%, 27%
Name Match
Steel Blue
Closest StandardCSS Code & Tailwind Declarations
Ready-to-use style sheets and arbitrary classes for web development.
CSS Variables
:root {
--color-brand: #3666BA;
}
.element {
color: #3666BA;
background: #3666BA;
}Tailwind v4 Classes
<!-- Tailwind Arbitrary --> <div className="bg-[#3666BA] text-[#3666BA] border-[#3666BA]"> #3666BA </div>
Shades of #3666BA (Darker Variations)
Progressively mixed with black for depth, borders, and shadows.
Tints of #3666BA (Lighter Variations)
Progressively mixed with pure white for subtle backgrounds and badges.
Tones of #3666BA (Muted Variations)
Mixed with neutral gray to create soft, low-contrast variants.
Color Summary
Color NameSteel Blue
LuminanceDark (Deep)
Hue Angle218° (Cool/Blue)
Print Ink (K)27% Key Black
Harmonious Color Palettes for #3666BA
Calculated color schemes based on classic geometric color wheel angles for graphic and web design.
Complementary
Analogous
Split Complementary
Monochromatic
WCAG Accessibility Contrast Ratios
Verification against Web Content Accessibility Guidelines (WCAG 2.1) standards for web text readability.
Sample Text on #3666BA Background
Contrast Ratio against Pure White (#FFFFFF):5.58 : 1
WCAG AA (4.5:1)
WCAG AAA (7.0:1)
Sample Text on #3666BA Background
Contrast Ratio against Pure Black (#000000):3.77 : 1
WCAG AA (4.5:1)
WCAG AAA (7.0:1)
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