SlateBlue (Blue)
#644FCF
RGB: 100, 79, 207
Color OverviewHEX #644FCF
#644FCF Color Code Information
In the RGB color space, #644FCF is composed of 39% red, 31% green, and 81% blue. In the HSL color space, it has a hue of 250°, saturation of 57%, and lightness of 56%.
HEX
#644FCF
RGB
100, 79, 207
HSL
250°, 57%, 56%
HSV
250°, 62%, 81%
CMYK
52%, 62%, 0%, 19%
Name Match
SlateBlue
Closest StandardCSS Code & Tailwind Declarations
Ready-to-use style sheets and arbitrary classes for web development.
CSS Variables
:root {
--color-brand: #644FCF;
}
.element {
color: #644FCF;
background: #644FCF;
}Tailwind v4 Classes
<!-- Tailwind Arbitrary --> <div className="bg-[#644FCF] text-[#644FCF] border-[#644FCF]"> #644FCF </div>
Shades of #644FCF (Darker Variations)
Progressively mixed with black for depth, borders, and shadows.
Tints of #644FCF (Lighter Variations)
Progressively mixed with pure white for subtle backgrounds and badges.
Tones of #644FCF (Muted Variations)
Mixed with neutral gray to create soft, low-contrast variants.
Color Summary
Color NameSlateBlue
LuminanceDark (Deep)
Hue Angle250° (Cool/Blue)
Print Ink (K)19% Key Black
Harmonious Color Palettes for #644FCF
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 #644FCF Background
Contrast Ratio against Pure White (#FFFFFF):5.9 : 1
WCAG AA (4.5:1)
WCAG AAA (7.0:1)
Sample Text on #644FCF Background
Contrast Ratio against Pure Black (#000000):3.56 : 1
WCAG AA (4.5:1)
WCAG AAA (7.0:1)
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