Red (Red)
#FF0000
RGB: 255, 0, 0
Color OverviewHEX #FF0000
#FF0000 Color Code Information
In the RGB color space, #FF0000 is composed of 100% red, 0% green, and 0% blue. In the HSL color space, it has a hue of 0°, saturation of 100%, and lightness of 50%.
HEX
#FF0000
RGB
255, 0, 0
HSL
0°, 100%, 50%
HSV
0°, 100%, 100%
CMYK
0%, 100%, 100%, 0%
Name Match
Red
Closest StandardCSS Code & Tailwind Declarations
Ready-to-use style sheets and arbitrary classes for web development.
CSS Variables
:root {
--color-brand: #FF0000;
}
.element {
color: #FF0000;
background: #FF0000;
}Tailwind v4 Classes
<!-- Tailwind Arbitrary --> <div className="bg-[#FF0000] text-[#FF0000] border-[#FF0000]"> #FF0000 </div>
Shades of #FF0000 (Darker Variations)
Progressively mixed with black for depth, borders, and shadows.
Tints of #FF0000 (Lighter Variations)
Progressively mixed with pure white for subtle backgrounds and badges.
Tones of #FF0000 (Muted Variations)
Mixed with neutral gray to create soft, low-contrast variants.
Color Summary
Color NameRed
LuminanceDark (Deep)
Hue Angle0° (Warm)
Print Ink (K)0% Key Black
Harmonious Color Palettes for #FF0000
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 #FF0000 Background
Contrast Ratio against Pure White (#FFFFFF):4 : 1
WCAG AA (4.5:1)
WCAG AAA (7.0:1)
Sample Text on #FF0000 Background
Contrast Ratio against Pure Black (#000000):5.25 : 1
WCAG AA (4.5:1)
WCAG AAA (7.0:1)
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