Firebrick3
firebrick3 · #CD2626
HEX
#CD2626
RGB
rgb(205, 38, 38)
CMYK
cmyk(0%, 81%, 81%, 20%)
HSL
hsl(0, 69%, 48%)
LAB
lab(45.0, 62.8, 43.0)
What is Firebrick3?
Firebrick3 is the firebrick3 reference in the X11 named colors. Its sRGB value is #CD2626 (rgb 205, 38, 38). It sits in the red family. Historical X Window System color names — the numbered 1-4 lightness variants of the classic xorg-server rgb.txt palette. See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Firebrick3 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Firebrick3
An 11-step tonal scale derived from Firebrick3 (#CD2626). 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
#FBEEEE
#FBEEEE
100
#F7DCDC
#F7DCDC
200
#EFBABA
#EFBABA
300
#E69393
#E69393
400
#DA5C5C
#DA5C5C
500
#CD2626
#CD2626
600
#AE2020
#AE2020
700
#851919
#851919
800
#5C1111
#5C1111
900
#330A0A
#330A0A
950
#190505
#190505
Lighter tints (mixed with white)
15%
#D67171
30%
#DE9898
45%
#E5B5B5
60%
#EDCDCD
75%
#F4E1E1
Darker shades (mixed with black)
15%
#BF2323
30%
#AF1F1F
45%
#9D1B1B
60%
#871515
75%
#6D0F0F
Color harmonies for Firebrick3
Classic color-theory harmonies derived from rotating the hue of Firebrick3. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#CD2626
#CD2626
#26CFCF
#26CFCF
Triadic
Three colors 120° apart
#CD2626
#CD2626
#26CF26
#26CF26
#2626CF
#2626CF
Analogous
Two neighbors ±30° on the wheel
#CF267A
#CF267A
#CD2626
#CD2626
#CF7A26
#CF7A26
Split-complementary
Base + two colors flanking its complement
#CD2626
#CD2626
#26CF7A
#26CF7A
#267ACF
#267ACF
Tetradic
Two complementary pairs
#CD2626
#CD2626
#CFCF26
#CFCF26
#26CFCF
#26CFCF
#2626CF
#2626CF
Square
Four colors evenly spaced 90° apart
#CD2626
#CD2626
#7ACF26
#7ACF26
#26CFCF
#26CFCF
#7A26CF
#7A26CF
Firebrick3 in every color space
Full conversion of Firebrick3 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
#CD2626
RGB
rgb(205, 38, 38)
CMYK
cmyk(0%, 81%, 81%, 20%)
HSL
hsl(0, 69%, 48%)
HSV
hsv(0, 81%, 80%)
HWB
hwb(0 15% 20%)
CIE Lab
lab(45.0 62.8 43.0)
OKLCH
oklch(55.0% 0.202 27.1)
XYZ (D65)
xyz(26.22, 14.51, 3.25)
Copy-ready code for Firebrick3
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: #CD2626;
background-color: #CD2626;CSS variable
:root {
--color-firebrick3: #CD2626;
}Tailwind config
// tailwind.config.js
colors: {
'firebrick3': '#CD2626',
}Sass
$color-firebrick3: #CD2626;Swift UIColor
UIColor(red: 0.804, green: 0.149, blue: 0.149, alpha: 1.0)Android XML
<color name="firebrick3">#CD2626</color>Closest match in every color system
The nearest Firebrick3 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 X11 named colors
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 2002
#CB2821
Vermilion
RAL 3028
#CB3234
Pure red
RAL 3018
#D53032
Strawberry red
RAL 3020
#CC0605
Traffic red
RAL 2001
#C93C20
Red orange
RAL 3016
#B32821
Coral red
FAQ about Firebrick3
What is the HEX code for Firebrick3?
Firebrick3 (firebrick3) has the HEX code #CD2626. In RGB it is rgb(205, 38, 38), and in CMYK it is cmyk(0%, 81%, 81%, 20%).
What is the OKLCH value of Firebrick3?
Firebrick3 converts to oklch(0.550 0.202 27.1). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Firebrick3 accessible for body text?
Used as a background, Firebrick3 has a contrast ratio of 3.90:1 with black text and 5.38:1 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 Firebrick3?
The closest Pantone reference to Firebrick3 by ΔE2000 perceptual distance is Pantone 485 C (#DA291C). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Firebrick3?
The closest RAL Classic reference to Firebrick3 by ΔE2000 distance is RAL 2002 (Vermilion, #CB2821). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Firebrick3?
The complementary color (180° opposite on the HSL color wheel) of Firebrick3 is #26CFCF. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
X11 named colors (xorg rgb.txt)
The historical X11 color name list shipped in the xorg-server rgb.txt file. Roughly 550 entries covering classic computing color names like 'PapayaWhip', 'MediumAquamarine', and 'DarkSlateGray'. Many CSS named colors originate here. Use as a reference for legacy and creative color names. Most modern CSS implementations accept these names directly.
- Source type
- derived
- Confidence
- high
- License
- MIT/X11 license (X Consortium)
- Last reviewed
- 2026-05-24
Workflow tags
X11 colors are sRGB digital values from a 1980s color system. For print, convert to a process-appropriate color and proof against substrate.