Orangered3
orangered3 · #CD3700
HEX
#CD3700
RGB
rgb(205, 55, 0)
CMYK
cmyk(0%, 73%, 100%, 20%)
HSL
hsl(16, 100%, 40%)
LAB
lab(46.6, 57.0, 58.6)
What is Orangered3?
Orangered3 is the orangered3 reference in the X11 named colors. Its sRGB value is #CD3700 (rgb 205, 55, 0). It sits in the orange 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 Orangered3 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Orangered3
An 11-step tonal scale derived from Orangered3 (#CD3700). 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
#FBEFEB
#FBEFEB
100
#F7DFD6
#F7DFD6
200
#EFBFAD
#EFBFAD
300
#E69B80
#E69B80
400
#DA6940
#DA6940
500
#CD3700
#CD3700
600
#AE2F00
#AE2F00
700
#852400
#852400
800
#5C1900
#5C1900
900
#330E00
#330E00
950
#190700
#190700
Lighter tints (mixed with white)
15%
#D6766C
30%
#DE9B95
45%
#E5B7B3
60%
#EDCECB
75%
#F4E2E1
Darker shades (mixed with black)
15%
#BF3200
30%
#AF2D00
45%
#9D2800
60%
#872100
75%
#6D1900
Color harmonies for Orangered3
Classic color-theory harmonies derived from rotating the hue of Orangered3. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#CD3700
#CD3700
#0096CC
#0096CC
Triadic
Three colors 120° apart
#CD3700
#CD3700
#00CC36
#00CC36
#3600CC
#3600CC
Analogous
Two neighbors ±30° on the wheel
#CC0030
#CC0030
#CD3700
#CD3700
#CC9C00
#CC9C00
Split-complementary
Base + two colors flanking its complement
#CD3700
#CD3700
#00CC9C
#00CC9C
#0030CC
#0030CC
Tetradic
Two complementary pairs
#CD3700
#CD3700
#96CC00
#96CC00
#0096CC
#0096CC
#3600CC
#3600CC
Square
Four colors evenly spaced 90° apart
#CD3700
#CD3700
#30CC00
#30CC00
#0096CC
#0096CC
#9C00CC
#9C00CC
Orangered3 in every color space
Full conversion of Orangered3 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
#CD3700
RGB
rgb(205, 55, 0)
CMYK
cmyk(0%, 73%, 100%, 20%)
HSL
hsl(16, 100%, 40%)
HSV
hsv(16, 100%, 80%)
HWB
hwb(16 0% 20%)
CIE Lab
lab(46.6 57.0 58.6)
OKLCH
oklch(56.1% 0.194 35.7)
XYZ (D65)
xyz(26.55, 15.72, 1.64)
Copy-ready code for Orangered3
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: #CD3700;
background-color: #CD3700;CSS variable
:root {
--color-orangered3: #CD3700;
}Tailwind config
// tailwind.config.js
colors: {
'orangered3': '#CD3700',
}Sass
$color-orangered3: #CD3700;Swift UIColor
UIColor(red: 0.804, green: 0.216, blue: 0.000, alpha: 1.0)Android XML
<color name="orangered3">#CD3700</color>Closest match in every color system
The nearest Orangered3 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 2001
#C93C20
Red orange
RAL 2010
#D84B20
Signal orange
RAL 3020
#CC0605
Traffic red
RAL 3022
#D95030
Salmon pink
RAL 2002
#CB2821
Vermilion
RAL 2004
#F44611
Pure orange
FAQ about Orangered3
What is the HEX code for Orangered3?
Orangered3 (orangered3) has the HEX code #CD3700. In RGB it is rgb(205, 55, 0), and in CMYK it is cmyk(0%, 73%, 100%, 20%).
What is the OKLCH value of Orangered3?
Orangered3 converts to oklch(0.561 0.194 35.7). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Orangered3 accessible for body text?
Used as a background, Orangered3 has a contrast ratio of 4.14:1 with black text and 5.07:1 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 Orangered3?
The closest Pantone reference to Orangered3 by ΔE2000 perceptual distance is Pantone 173 C (#CF4520). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Orangered3?
The closest RAL Classic reference to Orangered3 by ΔE2000 distance is RAL 2001 (Red orange, #C93C20). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Orangered3?
The complementary color (180° opposite on the HSL color wheel) of Orangered3 is #0096CC. 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.