Plum4
plum4 · #8B668B
HEX
#8B668B
RGB
rgb(139, 102, 139)
CMYK
cmyk(0%, 27%, 0%, 45%)
HSL
hsl(300, 15%, 47%)
LAB
lab(48.1, 21.5, -14.6)
What is Plum4?
Plum4 is the plum4 reference in the X11 named colors. Its sRGB value is #8B668B (rgb 139, 102, 139). It sits in the pink 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 Plum4 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Plum4
An 11-step tonal scale derived from Plum4 (#8B668B). 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
#F6F3F6
#F6F3F6
100
#ECE7EC
#ECE7EC
200
#DACEDA
#DACEDA
300
#C5B3C5
#C5B3C5
400
#A88CA8
#A88CA8
500
#8B668B
#8B668B
600
#765776
#765776
700
#5A425A
#5A425A
800
#3F2E3F
#3F2E3F
900
#231A23
#231A23
950
#110C11
#110C11
Lighter tints (mixed with white)
15%
#A48CA4
30%
#B8A8B8
45%
#CABFCA
60%
#DAD3DA
75%
#E9E5E9
Darker shades (mixed with black)
15%
#815E81
30%
#765676
45%
#694C69
60%
#5A415A
75%
#483348
Color harmonies for Plum4
Classic color-theory harmonies derived from rotating the hue of Plum4. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#8B668B
#8B668B
#668A66
#668A66
Triadic
Three colors 120° apart
#8B668B
#8B668B
#8A8A66
#8A8A66
#668A8A
#668A8A
Analogous
Two neighbors ±30° on the wheel
#78668A
#78668A
#8B668B
#8B668B
#8A6678
#8A6678
Split-complementary
Base + two colors flanking its complement
#8B668B
#8B668B
#788A66
#788A66
#668A78
#668A78
Tetradic
Two complementary pairs
#8B668B
#8B668B
#8A6666
#8A6666
#668A66
#668A66
#668A8A
#668A8A
Square
Four colors evenly spaced 90° apart
#8B668B
#8B668B
#8A7866
#8A7866
#668A66
#668A66
#66788A
#66788A
Plum4 in every color space
Full conversion of Plum4 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
#8B668B
RGB
rgb(139, 102, 139)
CMYK
cmyk(0%, 27%, 0%, 45%)
HSL
hsl(300, 15%, 47%)
HSV
hsv(300, 27%, 55%)
HWB
hwb(300 40% 45%)
CIE Lab
lab(48.1 21.5 -14.6)
OKLCH
oklch(56.1% 0.071 326.5)
XYZ (D65)
xyz(20.06, 16.86, 26.62)
Copy-ready code for Plum4
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: #8B668B;
background-color: #8B668B;CSS variable
:root {
--color-plum4: #8B668B;
}Tailwind config
// tailwind.config.js
colors: {
'plum4': '#8B668B',
}Sass
$color-plum4: #8B668B;Swift UIColor
UIColor(red: 0.545, green: 0.400, blue: 0.545, alpha: 1.0)Android XML
<color name="plum4">#8B668B</color>Closest match in every color system
The nearest Plum4 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 4008
#924E7D
Signal violet
RAL 4005
#6C4675
Blue lilac
RAL 4009
#A18594
Pastel violet
RAL 4001
#6D3F5B
Red lilac
RAL 4006
#A03472
Traffic purple
RAL 7036
#7F7679
Platinum grey
FAQ about Plum4
What is the HEX code for Plum4?
Plum4 (plum4) has the HEX code #8B668B. In RGB it is rgb(139, 102, 139), and in CMYK it is cmyk(0%, 27%, 0%, 45%).
What is the OKLCH value of Plum4?
Plum4 converts to oklch(0.561 0.071 326.5). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Plum4 accessible for body text?
Used as a background, Plum4 has a contrast ratio of 4.37:1 with black text and 4.80:1 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 Plum4?
The closest Pantone reference to Plum4 by ΔE2000 perceptual distance is Pantone 528 C (#A05EB5). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Plum4?
The closest RAL Classic reference to Plum4 by ΔE2000 distance is RAL 4008 (Signal violet, #924E7D). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Plum4?
The complementary color (180° opposite on the HSL color wheel) of Plum4 is #668A66. 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.