HEX
#FF0000Primary tokenCSS Named Color Reference
Red Color Code
Red·#FF0000
Red FamilyWarmMid toneHigh saturationoklch(62.8% 0.258 29)
RGB
rgb(255, 0, 0)Screen valuesHSL
hsl(0 100% 50%)Hue and lightnessCMYK
0, 100, 100, 0Print handoffLAB
53, 80, 67Perceptual referenceOKLCH
oklch(62.8% 0.258 29)Modern perceptualRed is a mid-tone, high-saturation CSS named color at #FF0000. If you searched for red hex code, FF0000, or red RGB, this page gives the exact color value, conversion formats, contrast checks, nearby colors, and links into the lookup and converter workflows.
Best text colorDark text
Body text contrast4.29:1
Best UseAlerts, destructive actions, high-energy CTAs, and urgent interface signals
Tonal Scale
100#FFD1D1
300#FF8A8A
500#FF2E2E
600#FF0000
800#B80000
Contrast Checks
White text on this color
Buttons, badges, and filled actions.
4.00:1Large text / UI only
Dark text on this color
Large headings and selective UI.
4.29:1Large text / UI only
This color on light surface
Links, borders, and icons on light UI.
3.80:1Large text / UI only
Best text colorDark textContrast 4.29:1
Professional Reference
OKLCHoklch(62.8% 0.258 29)
Relative Luminance0.2126
Source TypeCSS Named Color
Classification
Red FamilyWarmMid toneHigh saturation
Source Context
Source Type
CSS Named Color
System
CSS
Closest Matches
Color Notes
- Red is kept as an exact CSS named color for #FF0000.
- Queries for red color code, FF0000, or red RGB usually need the value first, then contrast and implementation context.
Accessibility Matrix
White text on this color
White text placed on the current color.
4.00:1Large text / UI only
Dark text on this color
Dark text or headings on the current color.
4.29:1Large text / UI only
This color on light surface
Use this color for links, strokes, or icons on light UI.
3.80:1Large text / UI only
This color on dark surface
Use this color inside dark shells for strokes, tags, or icons.
4.29:1Large text / UI only
Best text colorDark textContrast 4.29:1 · Large text / UI only
Where It Works
- Use it for alerts, errors, destructive actions, urgent badges, and high-energy accents.
- Keep red focused because broad red surfaces can feel heavy or stressful.
- Pair with white, warm neutrals, deep red shades, and restrained supporting colors.
Reference Notes
Last Updated
2026-09-03
Source Library
CSS Standard Colors
Methodology
Verified source values + site guidance
Color Notes
Red is sourced from the published CSS Standard Colors library and retained here as a searchable reference swatch for product and interface reference work.
Hue Family
High-energy warm reds for editorial and alerts.
Source Collections
CSS Named Colors
Related Colors
Palette Starting Points
Implementation Snippets
:root {
--color-red: #FF0000;
--color-red-rgb: 255 0 0;
}class="bg-[#FF0000] text-white"
class="hover:bg-[#B80000] ring-1 ring-[#FF0000]"{
"red": "#FF0000",
"redRgb": [255, 0, 0],
"redHsl": [0, 100, 50]
}