Red 500
red-500 · #EF4444
HEX
#EF4444
RGB
rgb(239, 68, 68)
CMYK
cmyk(0%, 72%, 72%, 6%)
HSL
hsl(0, 84%, 60%)
LAB
lab(55.0, 64.7, 39.1)
What is Red 500?
Red 500 is the red-500 reference in the Tailwind CSS palette. Its sRGB value is #EF4444 (rgb 239, 68, 68). It sits in the red family. The default color palette shipped with Tailwind CSS v3 by Tailwind Labs. 22 color families across 11 lightness steps (50 to 950). See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Red 500 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Red 500
An 11-step tonal scale derived from Red 500 (#EF4444). Click any swatch to copy its HEX. Use these as a starting point for design tokens, hover states, and disabled states in a design system.
50
#FEF0F0
#FEF0F0
100
#FCE1E1
#FCE1E1
200
#FAC3C3
#FAC3C3
300
#F7A2A2
#F7A2A2
400
#F37373
#F37373
500
#EF4444
#EF4444
600
#CB3A3A
#CB3A3A
700
#9B2C2C
#9B2C2C
800
#6C1F1F
#6C1F1F
900
#3C1111
#3C1111
950
#1D0808
#1D0808
Lighter tints (mixed with white)
15%
#F17B7B
30%
#F49E9E
45%
#F6B8B8
60%
#F9CFCF
75%
#FBE3E3
Darker shades (mixed with black)
15%
#DE3F3F
30%
#CC3939
45%
#B73232
60%
#9F2A2A
75%
#802020
Color harmonies for Red 500
Classic color-theory harmonies derived from rotating the hue of Red 500. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#EF4444
#EF4444
#43EFEF
#43EFEF
Triadic
Three colors 120° apart
#EF4444
#EF4444
#43EF43
#43EF43
#4343EF
#4343EF
Analogous
Two neighbors ±30° on the wheel
#EF4399
#EF4399
#EF4444
#EF4444
#EF9943
#EF9943
Split-complementary
Base + two colors flanking its complement
#EF4444
#EF4444
#43EF99
#43EF99
#4399EF
#4399EF
Tetradic
Two complementary pairs
#EF4444
#EF4444
#EFEF43
#EFEF43
#43EFEF
#43EFEF
#4343EF
#4343EF
Square
Four colors evenly spaced 90° apart
#EF4444
#EF4444
#99EF43
#99EF43
#43EFEF
#43EFEF
#9943EF
#9943EF
Red 500 in every color space
Full conversion of Red 500 across the color spaces designers and developers actually use — including OKLCH (the perceptually-uniform space that powers Tailwind v4 and CSS Color Module Level 4) and HWB.
HEX
#EF4444
RGB
rgb(239, 68, 68)
CMYK
cmyk(0%, 72%, 72%, 6%)
HSL
hsl(0, 84%, 60%)
HSV
hsv(0, 72%, 94%)
HWB
hwb(0 27% 6%)
CIE Lab
lab(55.0 64.7 39.1)
OKLCH
oklch(63.7% 0.208 25.3)
XYZ (D65)
xyz(38.71, 22.91, 7.85)
Copy-ready code for Red 500
Drop-in snippets for CSS, Tailwind, Sass, iOS Swift, and Android XML. Click the copy button on any snippet to put it on your clipboard.
CSS
color: #EF4444;
background-color: #EF4444;CSS variable
:root {
--color-red-500: #EF4444;
}Tailwind config
// tailwind.config.js
colors: {
'red-500': '#EF4444',
}Sass
$color-red-500: #EF4444;Swift UIColor
UIColor(red: 0.937, green: 0.267, blue: 0.267, alpha: 1.0)Android XML
<color name="red-500">#EF4444</color>Closest match in every color system
The nearest Red 500 equivalent in every other color system on this site, ranked by ΔE2000 perceptual distance. Useful when translating between design-system, web-standard, and industrial color references.
Closest in Tailwind CSS palette
Top 6 ΔE2000-closest entries within the same collection.
Closest Pantone matches
Top 6 ΔE2000-closest Pantone references. Cross-system matching is approximate — see disclaimer.
Closest RAL Classic matches
Top 6 ΔE2000-closest RAL Classic references for industrial coating cross-reference.
RAL 3017
#E63244
Rose
RAL 2012
#E55137
Salmon orange
RAL 3018
#D53032
Strawberry red
RAL 2009
#F54021
Traffic orange
RAL 3022
#D95030
Salmon pink
RAL 3028
#CB3234
Pure red
FAQ about Red 500
What is the HEX code for Red 500?
Red 500 (red-500) has the HEX code #EF4444. In RGB it is rgb(239, 68, 68), and in CMYK it is cmyk(0%, 72%, 72%, 6%).
What is the OKLCH value of Red 500?
Red 500 converts to oklch(0.637 0.208 25.3). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Red 500 accessible for body text?
Used as a background, Red 500 has a contrast ratio of 5.58:1 with black text and 3.76:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use black text and verify in real UI context.
What is the closest Pantone to Red 500?
The closest Pantone reference to Red 500 by ΔE2000 perceptual distance is Pantone Red 032 C (#EF3340). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Red 500?
The closest RAL Classic reference to Red 500 by ΔE2000 distance is RAL 3017 (Rose, #E63244). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Red 500?
The complementary color (180° opposite on the HSL color wheel) of Red 500 is #43EFEF. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
Tailwind CSS default palette (v3)
The default color palette shipped with Tailwind CSS v3 by Tailwind Labs Inc. Use as a reference for design tokens, web color systems, and Tailwind-based design conversations. Names like 'blue-500' are the project's own naming convention.
- Source type
- derived
- Confidence
- high
- License
- MIT
- Last reviewed
- 2026-05-24
Workflow tags
Tailwind palette values are designed for digital interfaces under sRGB. For print, convert to a process-appropriate value and proof against the substrate; do not rely on sRGB CMYK conversion for color-critical print work.