Slateblue1
slateblue1 · #836FFF
HEX
#836FFF
RGB
rgb(131, 111, 255)
CMYK
cmyk(49%, 56%, 0%, 0%)
HSL
hsl(248, 100%, 72%)
LAB
lab(55.5, 43.6, -69.4)
What is Slateblue1?
Slateblue1 is the slateblue1 reference in the X11 named colors. Its sRGB value is #836FFF (rgb 131, 111, 255). It sits in the blue 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 Slateblue1 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Slateblue1
An 11-step tonal scale derived from Slateblue1 (#836FFF). 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
#F5F3FF
#F5F3FF
100
#EBE8FF
#EBE8FF
200
#D7D1FF
#D7D1FF
300
#C1B7FF
#C1B7FF
400
#A293FF
#A293FF
500
#836FFF
#836FFF
600
#6F5ED9
#6F5ED9
700
#5548A6
#5548A6
800
#3B3273
#3B3273
900
#211C40
#211C40
950
#100D1F
#100D1F
Lighter tints (mixed with white)
15%
#9E91FF
30%
#B4ACFF
45%
#C8C2FF
60%
#D9D5FF
75%
#E8E6FF
Darker shades (mixed with black)
15%
#7A67ED
30%
#6F5EDA
45%
#6353C4
60%
#5547AA
75%
#433889
Color harmonies for Slateblue1
Classic color-theory harmonies derived from rotating the hue of Slateblue1. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#836FFF
#836FFF
#ECFF70
#ECFF70
Triadic
Three colors 120° apart
#836FFF
#836FFF
#FF8370
#FF8370
#70FF83
#70FF83
Analogous
Two neighbors ±30° on the wheel
#70A5FF
#70A5FF
#836FFF
#836FFF
#CB70FF
#CB70FF
Split-complementary
Base + two colors flanking its complement
#836FFF
#836FFF
#FFCB70
#FFCB70
#A5FF70
#A5FF70
Tetradic
Two complementary pairs
#836FFF
#836FFF
#FF70EC
#FF70EC
#ECFF70
#ECFF70
#70FF83
#70FF83
Square
Four colors evenly spaced 90° apart
#836FFF
#836FFF
#FF70A5
#FF70A5
#ECFF70
#ECFF70
#70FFCB
#70FFCB
Slateblue1 in every color space
Full conversion of Slateblue1 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
#836FFF
RGB
rgb(131, 111, 255)
CMYK
cmyk(49%, 56%, 0%, 0%)
HSL
hsl(248, 100%, 72%)
HSV
hsv(248, 56%, 100%)
HWB
hwb(248 44% 0%)
CIE Lab
lab(55.5 43.6 -69.4)
OKLCH
oklch(63.4% 0.206 285.3)
XYZ (D65)
xyz(33.09, 23.41, 97.36)
Copy-ready code for Slateblue1
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: #836FFF;
background-color: #836FFF;CSS variable
:root {
--color-slateblue1: #836FFF;
}Tailwind config
// tailwind.config.js
colors: {
'slateblue1': '#836FFF',
}Sass
$color-slateblue1: #836FFF;Swift UIColor
UIColor(red: 0.514, green: 0.435, blue: 1.000, alpha: 1.0)Android XML
<color name="slateblue1">#836FFF</color>Closest match in every color system
The nearest Slateblue1 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 7000
#7E8B92
Squirrel grey
RAL 5014
#606E8C
Pigeon blue
RAL 7001
#8F999F
Silver grey
RAL 5023
#49678D
Distant blue
RAL 5012
#3B83BD
Light blue
RAL 5015
#2271B3
Sky blue
FAQ about Slateblue1
What is the HEX code for Slateblue1?
Slateblue1 (slateblue1) has the HEX code #836FFF. In RGB it is rgb(131, 111, 255), and in CMYK it is cmyk(49%, 56%, 0%, 0%).
What is the OKLCH value of Slateblue1?
Slateblue1 converts to oklch(0.634 0.206 285.3). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Slateblue1 accessible for body text?
Used as a background, Slateblue1 has a contrast ratio of 5.68:1 with black text and 3.70:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use black text and verify in real UI context.
What is the closest Pantone to Slateblue1?
The closest Pantone reference to Slateblue1 by ΔE2000 perceptual distance is Pantone 814 C (#9A66BF). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Slateblue1?
The closest RAL Classic reference to Slateblue1 by ΔE2000 distance is RAL 7000 (Squirrel grey, #7E8B92). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Slateblue1?
The complementary color (180° opposite on the HSL color wheel) of Slateblue1 is #ECFF70. 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.