Palettes / Colors / #424BCC

#424BCC — Blue

#424BCC is a blue color we call 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 #424BCC 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.

#424BCC 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 #CDC342; it also sits naturally between #4290CD and #7E42CD. In the palettes below you can see it working alongside real color combinations from our collection.

Copy HEX Copy RGB Copy HSL Download PNG swatch SVG

Color values

RGB & CMYK percentages

Red 26% · Green 29% · Blue 80%

Cyan 68% · Magenta 63% · Yellow 0% · Key 20%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #424BCC

.text { color: #424BCC; }
.background { background-color: #424BCC; }
.border { border: 3px solid #424BCC; }
.text-rgb { color: rgb(66, 75, 204); }
.text-hsl { color: hsl(236, 58%, 53%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #424BCC; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(66, 75, 204, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #424BCC; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(66, 75, 204, 0.8); }

HTML: <p style="color:#424BCC">Text here</p> · <div style="background-color:#424BCC">Div content here</div>

Shades of #424BCC

Tints of #424BCC

Tones of #424BCC

Color harmonies

Complementary — #CDC342:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #424BCC: #FFFFFF.

Semi-transparent (opacity) text on #424BCC

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:

How #424BCC 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 #424BCC 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

← #424BCB  ·  #424BCD →

Frequently asked questions

What color is #424BCC?

#424BCC is Blue, a blue color (RGB 66, 75, 204). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #424BCC?

#424BCC is RGB 66, 75, 204 — HSL 236°, 58%, 53% — CMYK 68%, 63%, 0%, 20%.

What colors go with #424BCC?

Its complement is #CDC342; analogous partners are #4290CD and #7E42CD. It also appears in 6+ palettes in our collection.

Can I use #424BCC for text?

White text on #424BCC has a contrast ratio of 6.75:1 (passes WCAG AA); black text gives 3.11:1.