Palettes / Colors / #51549C
#51549C — Muted Blue
#51549C is a blue color we call Muted 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 #51549C 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.
#51549C is a cool blue color associated with trust, calm and professionalism. It sits comfortably in the middle: usable for large areas in soft schemes, or as a supporting color beside something stronger.
Its strongest partner is its complement #9B9850; it also sits naturally between #50789B and #73509B. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #51549C |
|---|---|
| RGB | 81, 84, 156 |
| HSL | 238°, 32%, 46% |
| HSV | 238°, 48%, 61% |
| CMYK | 48%, 46%, 0%, 39% |
| XYZ | 12.56, 10.49, 32.82 |
| Yxy | 10.49, 0.2249, 0.1878 |
| CIE-Lab | 38.71, 18.89, -39.77 |
| Hunter Lab | 32.39, 14.52, -40.67 |
RGB & CMYK percentages
Red 32% · Green 33% · Blue 61%
Cyan 48% · Magenta 46% · Yellow 0% · Key 39%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #51549C
.text { color: #51549C; }
.background { background-color: #51549C; }
.border { border: 3px solid #51549C; }
.text-rgb { color: rgb(81, 84, 156); }
.text-hsl { color: hsl(238, 32%, 46%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #51549C; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(81, 84, 156, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #51549C; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(81, 84, 156, 0.8); }
HTML: <p style="color:#51549C">Text here</p> · <div style="background-color:#51549C">Div content here</div>
Shades of #51549C
Tints of #51549C
Tones of #51549C
Color harmonies
Complementary — #9B9850:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 6.78:1 AA |
|---|---|
| Against black text | 3.10:1 AA large only |
Best text color on #51549C: #FFFFFF.
Semi-transparent (opacity) text on #51549C
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 #51549C: ·
How #51549C 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 #51549C 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 #51549C?
#51549C is Muted Blue, a blue color (RGB 81, 84, 156). Its closest standard named color is DarkSlateBlue.
What is the RGB and HSL of #51549C?
#51549C is RGB 81, 84, 156 — HSL 238°, 32%, 46% — CMYK 48%, 46%, 0%, 39%.
What colors go with #51549C?
Its complement is #9B9850; analogous partners are #50789B and #73509B. It also appears in 6+ palettes in our collection.
Can I use #51549C for text?
White text on #51549C has a contrast ratio of 6.78:1 (passes WCAG AA); black text gives 3.10:1.