Palettes / Colors / #331CA7
#331CA7 — Blue
#331CA7 is a blue color we call Blue, closest to the named color DarkSlateBlue (#483D8B). It belongs to the blue family.
Color name
Closest CSS keyword: darkslateblue (#483D8B) — not an exact match. CSS darkslateblue gives you #483D8B, a different color; use #331CA7 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.
#331CA7 is a cool blue color associated with trust, calm and professionalism. 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 #8FA61C; it also sits naturally between #1C4AA6 and #781CA6. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #331CA7 |
|---|---|
| RGB | 51, 28, 167 |
| HSL | 250°, 71%, 38% |
| HSV | 250°, 83%, 65% |
| CMYK | 69%, 83%, 0%, 35% |
| XYZ | 8.76, 4.32, 36.93 |
| Yxy | 4.32, 0.1751, 0.0865 |
| CIE-Lab | 24.72, 50.31, -69.28 |
| Hunter Lab | 20.80, 40.51, -95.41 |
RGB & CMYK percentages
Red 20% · Green 11% · Blue 65%
Cyan 69% · Magenta 83% · Yellow 0% · Key 35%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #331CA7
.text { color: #331CA7; }
.background { background-color: #331CA7; }
.border { border: 3px solid #331CA7; }
.text-rgb { color: rgb(51, 28, 167); }
.text-hsl { color: hsl(250, 71%, 38%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #331CA7; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(51, 28, 167, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #331CA7; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(51, 28, 167, 0.8); }
HTML: <p style="color:#331CA7">Text here</p> · <div style="background-color:#331CA7">Div content here</div>
Shades of #331CA7
Tints of #331CA7
Tones of #331CA7
Color harmonies
Complementary — #8FA61C:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 11.26:1 AAA |
|---|---|
| Against black text | 1.86:1 Fails |
Best text color on #331CA7: #FFFFFF.
Semi-transparent (opacity) text on #331CA7
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 #331CA7: ·
How #331CA7 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 #331CA7 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 #331CA7?
#331CA7 is Blue, a blue color (RGB 51, 28, 167). Its closest standard named color is DarkSlateBlue.
What is the RGB and HSL of #331CA7?
#331CA7 is RGB 51, 28, 167 — HSL 250°, 71%, 38% — CMYK 69%, 83%, 0%, 35%.
What colors go with #331CA7?
Its complement is #8FA61C; analogous partners are #1C4AA6 and #781CA6. It also appears in 6+ palettes in our collection.
Can I use #331CA7 for text?
White text on #331CA7 has a contrast ratio of 11.26:1 (passes WCAG AA); black text gives 1.86:1.