Orangered4
orangered4 · #8B2500
HEX
#8B2500
RGB
rgb(139, 37, 0)
CMYK
cmyk(0%, 73%, 100%, 45%)
HSL
hsl(16, 100%, 27%)
LAB
lab(31.4, 41.7, 43.8)
What is Orangered4?
Orangered4 is the orangered4 reference in the X11 named colors. Its sRGB value is #8B2500 (rgb 139, 37, 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 Orangered4 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Orangered4
An 11-step tonal scale derived from Orangered4 (#8B2500). 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
#F6EEEB
#F6EEEB
100
#ECDCD6
#ECDCD6
200
#DAB9AD
#DAB9AD
300
#C59280
#C59280
400
#A85C40
#A85C40
500
#8B2500
#8B2500
600
#761F00
#761F00
700
#5A1800
#5A1800
800
#3F1100
#3F1100
900
#230900
#230900
950
#110400
#110400
Lighter tints (mixed with white)
15%
#A4716C
30%
#B89895
45%
#CAB5B3
60%
#DACDCB
75%
#E9E1E1
Darker shades (mixed with black)
15%
#812200
30%
#761E00
45%
#691A00
60%
#5A1500
75%
#480F00
Color harmonies for Orangered4
Classic color-theory harmonies derived from rotating the hue of Orangered4. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#8B2500
#8B2500
#00658A
#00658A
Triadic
Three colors 120° apart
#8B2500
#8B2500
#008A25
#008A25
#25008A
#25008A
Analogous
Two neighbors ±30° on the wheel
#8A0020
#8A0020
#8B2500
#8B2500
#8A6A00
#8A6A00
Split-complementary
Base + two colors flanking its complement
#8B2500
#8B2500
#008A6A
#008A6A
#00208A
#00208A
Tetradic
Two complementary pairs
#8B2500
#8B2500
#658A00
#658A00
#00658A
#00658A
#25008A
#25008A
Square
Four colors evenly spaced 90° apart
#8B2500
#8B2500
#208A00
#208A00
#00658A
#00658A
#6A008A
#6A008A
Orangered4 in every color space
Full conversion of Orangered4 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
#8B2500
RGB
rgb(139, 37, 0)
CMYK
cmyk(0%, 73%, 100%, 45%)
HSL
hsl(16, 100%, 27%)
HSV
hsv(16, 100%, 55%)
HWB
hwb(16 0% 45%)
CIE Lab
lab(31.4 41.7 43.8)
OKLCH
oklch(42.4% 0.143 36.7)
XYZ (D65)
xyz(11.31, 6.81, 0.72)
Copy-ready code for Orangered4
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: #8B2500;
background-color: #8B2500;CSS variable
:root {
--color-orangered4: #8B2500;
}Tailwind config
// tailwind.config.js
colors: {
'orangered4': '#8B2500',
}Sass
$color-orangered4: #8B2500;Swift UIColor
UIColor(red: 0.545, green: 0.145, blue: 0.000, alpha: 1.0)Android XML
<color name="orangered4">#8B2500</color>Closest match in every color system
The nearest Orangered4 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 3013
#A12312
Tomato red
RAL 8004
#8E402A
Copper brown
RAL 3001
#A52019
Signal red
RAL 3002
#A2231D
Carmine red
RAL 3011
#781F19
Brown red
RAL 3000
#AF2B1E
Flame red
FAQ about Orangered4
What is the HEX code for Orangered4?
Orangered4 (orangered4) has the HEX code #8B2500. In RGB it is rgb(139, 37, 0), and in CMYK it is cmyk(0%, 73%, 100%, 45%).
What is the OKLCH value of Orangered4?
Orangered4 converts to oklch(0.424 0.143 36.7). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Orangered4 accessible for body text?
Used as a background, Orangered4 has a contrast ratio of 2.36:1 with black text and 8.89:1 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 Orangered4?
The closest Pantone reference to Orangered4 by ΔE2000 perceptual distance is Pantone 174 C (#963821). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Orangered4?
The closest RAL Classic reference to Orangered4 by ΔE2000 distance is RAL 3013 (Tomato red, #A12312). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Orangered4?
The complementary color (180° opposite on the HSL color wheel) of Orangered4 is #00658A. 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.