Palettes / Colors / #4E66EE
#4E66EE — Vivid Blue
#4E66EE is a blue color we call Vivid Blue, closest to the named color RoyalBlue (#4169E1). It belongs to the blue family.
Color name
Closest CSS keyword: royalblue (#4169E1) — not an exact match. CSS royalblue gives you #4169E1, a different color; use #4E66EE 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.
#4E66EE 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 #EED64F; it also sits naturally between #4FB6EE and #864FEE. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #4E66EE |
|---|---|
| RGB | 78, 102, 238 |
| HSL | 231°, 82%, 62% |
| HSV | 231°, 67%, 93% |
| CMYK | 67%, 57%, 0%, 7% |
| XYZ | 23.33, 17.30, 83.00 |
| Yxy | 17.30, 0.1887, 0.1399 |
| CIE-Lab | 48.63, 34.46, -71.27 |
| Hunter Lab | 41.59, 30.03, -95.00 |
RGB & CMYK percentages
Red 31% · Green 40% · Blue 93%
Cyan 67% · Magenta 57% · Yellow 0% · Key 7%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #4E66EE
.text { color: #4E66EE; }
.background { background-color: #4E66EE; }
.border { border: 3px solid #4E66EE; }
.text-rgb { color: rgb(78, 102, 238); }
.text-hsl { color: hsl(231, 82%, 62%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #4E66EE; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(78, 102, 238, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #4E66EE; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(78, 102, 238, 0.8); }
HTML: <p style="color:#4E66EE">Text here</p> · <div style="background-color:#4E66EE">Div content here</div>
Shades of #4E66EE
Tints of #4E66EE
Tones of #4E66EE
Color harmonies
Complementary — #EED64F:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 4.71:1 AA |
|---|---|
| Against black text | 4.46:1 AA large only |
Best text color on #4E66EE: #FFFFFF.
Semi-transparent (opacity) text on #4E66EE
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 #4E66EE: ·
How #4E66EE 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 #4E66EE 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 #4E66EE?
#4E66EE is Vivid Blue, a blue color (RGB 78, 102, 238). Its closest standard named color is RoyalBlue.
What is the RGB and HSL of #4E66EE?
#4E66EE is RGB 78, 102, 238 — HSL 231°, 82%, 62% — CMYK 67%, 57%, 0%, 7%.
What colors go with #4E66EE?
Its complement is #EED64F; analogous partners are #4FB6EE and #864FEE. It also appears in 6+ palettes in our collection.
Can I use #4E66EE for text?
White text on #4E66EE has a contrast ratio of 4.71:1 (passes WCAG AA); black text gives 4.46:1.