Red 900
red-900 · #7F1D1D
HEX
#7F1D1D
RGB
rgb(127, 29, 29)
CMYK
cmyk(0%, 77%, 77%, 50%)
HSL
hsl(0, 63%, 31%)
LAB
lab(28.1, 41.4, 25.8)
What is Red 900?
Red 900 is the red-900 reference in the Tailwind CSS palette. Its sRGB value is #7F1D1D (rgb 127, 29, 29). 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 900 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Red 900
An 11-step tonal scale derived from Red 900 (#7F1D1D). 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
#F5EDED
#F5EDED
100
#EBDBDB
#EBDBDB
200
#D6B7B7
#D6B7B7
300
#BF8E8E
#BF8E8E
400
#9F5656
#9F5656
500
#7F1D1D
#7F1D1D
600
#6C1919
#6C1919
700
#531313
#531313
800
#390D0D
#390D0D
900
#200707
#200707
950
#0F0303
#0F0303
Lighter tints (mixed with white)
15%
#9C6F6F
30%
#B39797
45%
#C6B4B4
60%
#D8CCCC
75%
#E8E1E1
Darker shades (mixed with black)
15%
#761A1A
30%
#6C1717
45%
#601414
60%
#520F0F
75%
#410A0A
Color harmonies for Red 900
Classic color-theory harmonies derived from rotating the hue of Red 900. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#7F1D1D
#7F1D1D
#1D8181
#1D8181
Triadic
Three colors 120° apart
#7F1D1D
#7F1D1D
#1D811D
#1D811D
#1D1D81
#1D1D81
Analogous
Two neighbors ±30° on the wheel
#811D4F
#811D4F
#7F1D1D
#7F1D1D
#814F1D
#814F1D
Split-complementary
Base + two colors flanking its complement
#7F1D1D
#7F1D1D
#1D814F
#1D814F
#1D4F81
#1D4F81
Tetradic
Two complementary pairs
#7F1D1D
#7F1D1D
#81811D
#81811D
#1D8181
#1D8181
#1D1D81
#1D1D81
Square
Four colors evenly spaced 90° apart
#7F1D1D
#7F1D1D
#4F811D
#4F811D
#1D8181
#1D8181
#4F1D81
#4F1D81
Red 900 in every color space
Full conversion of Red 900 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
#7F1D1D
RGB
rgb(127, 29, 29)
CMYK
cmyk(0%, 77%, 77%, 50%)
HSL
hsl(0, 63%, 31%)
HSV
hsv(0, 77%, 50%)
HWB
hwb(0 11% 50%)
CIE Lab
lab(28.1 41.4 25.8)
OKLCH
oklch(39.6% 0.133 25.7)
XYZ (D65)
xyz(9.41, 5.48, 1.72)
Copy-ready code for Red 900
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: #7F1D1D;
background-color: #7F1D1D;CSS variable
:root {
--color-red-900: #7F1D1D;
}Tailwind config
// tailwind.config.js
colors: {
'red-900': '#7F1D1D',
}Sass
$color-red-900: #7F1D1D;Swift UIColor
UIColor(red: 0.498, green: 0.114, blue: 0.114, alpha: 1.0)Android XML
<color name="red-900">#7F1D1D</color>Closest match in every color system
The nearest Red 900 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 3011
#781F19
Brown red
RAL 3004
#75151E
Purple red
RAL 3003
#9B111E
Ruby red
RAL 3009
#642424
Oxide red
RAL 3002
#A2231D
Carmine red
RAL 3001
#A52019
Signal red
FAQ about Red 900
What is the HEX code for Red 900?
Red 900 (red-900) has the HEX code #7F1D1D. In RGB it is rgb(127, 29, 29), and in CMYK it is cmyk(0%, 77%, 77%, 50%).
What is the OKLCH value of Red 900?
Red 900 converts to oklch(0.396 0.133 25.7). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Red 900 accessible for body text?
Used as a background, Red 900 has a contrast ratio of 2.10:1 with black text and 10.02:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use white text and verify in real UI context.
What is the closest Pantone to Red 900?
The closest Pantone reference to Red 900 by ΔE2000 perceptual distance is Pantone 202 C (#862633). 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 900?
The closest RAL Classic reference to Red 900 by ΔE2000 distance is RAL 3011 (Brown red, #781F19). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Red 900?
The complementary color (180° opposite on the HSL color wheel) of Red 900 is #1D8181. 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.