Pink4
pink4 · #8B636C
HEX
#8B636C
RGB
rgb(139, 99, 108)
CMYK
cmyk(0%, 29%, 22%, 45%)
HSL
hsl(347, 17%, 47%)
LAB
lab(46.3, 17.6, 1.4)
What is Pink4?
Pink4 is the pink4 reference in the X11 named colors. Its sRGB value is #8B636C (rgb 139, 99, 108). 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 Pink4 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Pink4
An 11-step tonal scale derived from Pink4 (#8B636C). 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
#F6F3F3
#F6F3F3
100
#ECE6E7
#ECE6E7
200
#DACDD0
#DACDD0
300
#C5B1B6
#C5B1B6
400
#A88A91
#A88A91
500
#8B636C
#8B636C
600
#76545C
#76545C
700
#5A4046
#5A4046
800
#3F2D31
#3F2D31
900
#23191B
#23191B
950
#110C0D
#110C0D
Lighter tints (mixed with white)
15%
#A48A90
30%
#B8A7AB
45%
#CABFC1
60%
#DAD3D4
75%
#E9E5E6
Darker shades (mixed with black)
15%
#815C64
30%
#76535B
45%
#694A51
60%
#5A3F45
75%
#483136
Color harmonies for Pink4
Classic color-theory harmonies derived from rotating the hue of Pink4. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#8B636C
#8B636C
#638C83
#638C83
Triadic
Three colors 120° apart
#8B636C
#8B636C
#6C8C63
#6C8C63
#636C8C
#636C8C
Analogous
Two neighbors ±30° on the wheel
#8C6381
#8C6381
#8B636C
#8B636C
#8C6F63
#8C6F63
Split-complementary
Base + two colors flanking its complement
#8B636C
#8B636C
#638C6F
#638C6F
#63818C
#63818C
Tetradic
Two complementary pairs
#8B636C
#8B636C
#8C8363
#8C8363
#638C83
#638C83
#636C8C
#636C8C
Square
Four colors evenly spaced 90° apart
#8B636C
#8B636C
#818C63
#818C63
#638C83
#638C83
#6F638C
#6F638C
Pink4 in every color space
Full conversion of Pink4 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
#8B636C
RGB
rgb(139, 99, 108)
CMYK
cmyk(0%, 29%, 22%, 45%)
HSL
hsl(347, 17%, 47%)
HSV
hsv(347, 29%, 55%)
HWB
hwb(347 39% 45%)
CIE Lab
lab(46.3 17.6 1.4)
OKLCH
oklch(54.4% 0.053 4.1)
XYZ (D65)
xyz(17.82, 15.50, 16.24)
Copy-ready code for Pink4
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: #8B636C;
background-color: #8B636C;CSS variable
:root {
--color-pink4: #8B636C;
}Tailwind config
// tailwind.config.js
colors: {
'pink4': '#8B636C',
}Sass
$color-pink4: #8B636C;Swift UIColor
UIColor(red: 0.545, green: 0.388, blue: 0.424, alpha: 1.0)Android XML
<color name="pink4">#8B636C</color>Closest match in every color system
The nearest Pink4 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 7036
#7F7679
Platinum grey
RAL 4009
#A18594
Pastel violet
RAL 4001
#6D3F5B
Red lilac
RAL 4006
#A03472
Traffic purple
RAL 4005
#6C4675
Blue lilac
FAQ about Pink4
What is the HEX code for Pink4?
Pink4 (pink4) has the HEX code #8B636C. In RGB it is rgb(139, 99, 108), and in CMYK it is cmyk(0%, 29%, 22%, 45%).
What is the OKLCH value of Pink4?
Pink4 converts to oklch(0.544 0.053 4.1). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Pink4 accessible for body text?
Used as a background, Pink4 has a contrast ratio of 4.10:1 with black text and 5.12:1 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 Pink4?
The closest Pantone reference to Pink4 by ΔE2000 perceptual distance is Pantone 195 C (#893B45). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Pink4?
The closest RAL Classic reference to Pink4 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 Pink4?
The complementary color (180° opposite on the HSL color wheel) of Pink4 is #638C83. 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.