Slate Gray (Neutral)
#64748B
RGB: 100, 116, 139
Color OverviewHEX #64748B
#64748B Color Code Information
In the RGB color space, #64748B is composed of 39% red, 45% green, and 55% blue. In the HSL color space, it has a hue of 215°, saturation of 16%, and lightness of 47%.
HEX
#64748B
RGB
100, 116, 139
HSL
215°, 16%, 47%
HSV
215°, 28%, 55%
CMYK
28%, 17%, 0%, 45%
Name Match
Slate Gray
Closest StandardCSS Code & Tailwind Declarations
Ready-to-use style sheets and arbitrary classes for web development.
CSS Variables
:root {
--color-brand: #64748B;
}
.element {
color: #64748B;
background: #64748B;
}Tailwind v4 Classes
<!-- Tailwind Arbitrary --> <div className="bg-[#64748B] text-[#64748B] border-[#64748B]"> #64748B </div>
Shades of #64748B (Darker Variations)
Progressively mixed with black for depth, borders, and shadows.
Tints of #64748B (Lighter Variations)
Progressively mixed with pure white for subtle backgrounds and badges.
Tones of #64748B (Muted Variations)
Mixed with neutral gray to create soft, low-contrast variants.
Color Summary
Color NameSlate Gray
LuminanceDark (Deep)
Hue Angle215° (Cool/Blue)
Print Ink (K)45% Key Black
Harmonious Color Palettes for #64748B
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 #64748B Background
Contrast Ratio against Pure White (#FFFFFF):4.76 : 1
WCAG AA (4.5:1)
WCAG AAA (7.0:1)
Sample Text on #64748B Background
Contrast Ratio against Pure Black (#000000):4.41 : 1
WCAG AA (4.5:1)
WCAG AAA (7.0:1)
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