Palettes / Colors / #511FAB
#511FAB — Purple
#511FAB is a purple color we call Purple, closest to the named color DarkSlateBlue (#483D8B). It belongs to the purple family.
Color name
Closest CSS keyword: darkslateblue (#483D8B) — not an exact match. CSS darkslateblue gives you #483D8B, a different color; use #511FAB when you need this exact shade.
Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.
#511FAB is a cool purple color associated with luxury, creativity and mystery. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.
Its strongest partner is its complement #7BAC20; it also sits naturally between #2035AC and #9720AC. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #511FAB |
|---|---|
| RGB | 81, 31, 171 |
| HSL | 261°, 69%, 40% |
| HSV | 261°, 82%, 67% |
| CMYK | 53%, 82%, 0%, 33% |
| XYZ | 11.23, 5.67, 39.03 |
| Yxy | 5.67, 0.2008, 0.1014 |
| CIE-Lab | 28.56, 53.30, -65.24 |
| Hunter Lab | 23.81, 44.52, -84.96 |
RGB & CMYK percentages
Red 32% · Green 12% · Blue 67%
Cyan 53% · Magenta 82% · Yellow 0% · Key 33%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
CSS code for #511FAB
.text { color: #511FAB; }
.background { background-color: #511FAB; }
.border { border: 3px solid #511FAB; }
.text-rgb { color: rgb(81, 31, 171); }
.text-hsl { color: hsl(261, 69%, 40%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #511FAB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 31, 171, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #511FAB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 31, 171, 0.8); }
HTML: <p style="color:#511FAB">Text here</p> · <div style="background-color:#511FAB">Div content here</div>
Shades of #511FAB
Tints of #511FAB
Tones of #511FAB
Color harmonies
Complementary — #7BAC20:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 9.84:1 AAA |
|---|---|
| Against black text | 2.13:1 Fails |
Best text color on #511FAB: #FFFFFF.
Semi-transparent (opacity) text on #511FAB
Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:
Smaller body text shows the effect best.
Blended color: · Contrast against #511FAB: ·
How #511FAB looks with color blindness
Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:
Closest design-system colors
The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:
Palettes with a similar color
These palettes use a close neighbour of #511FAB rather than the exact color:
Similar colors
The closest colors that actually appear in our palette collection — click any to open its page:
Browse neighbouring colors
Frequently asked questions
What color is #511FAB?
#511FAB is Purple, a purple color (RGB 81, 31, 171). Its closest standard named color is DarkSlateBlue.
What is the RGB and HSL of #511FAB?
#511FAB is RGB 81, 31, 171 — HSL 261°, 69%, 40% — CMYK 53%, 82%, 0%, 33%.
What colors go with #511FAB?
Its complement is #7BAC20; analogous partners are #2035AC and #9720AC. It also appears in 6+ palettes in our collection.
Can I use #511FAB for text?
White text on #511FAB has a contrast ratio of 9.84:1 (passes WCAG AA); black text gives 2.13:1.