Palettes / Colors / #033388

#033388 — Deep Vivid Blue

#033388 is a blue color we call Deep Vivid Blue, closest to the named color MidnightBlue (#191970). It belongs to the blue family.

Color name

Closest CSS keyword: midnightblue (#191970) — not an exact match. CSS midnightblue gives you #191970, a different color; use #033388 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.

#033388 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 #875603; it also sits naturally between #037587 and #140387. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 1% · Green 20% · Blue 53%

Cyan 98% · Magenta 63% · Yellow 0% · Key 47%

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

Previews

CSS code for #033388

.text { color: #033388; }
.background { background-color: #033388; }
.border { border: 3px solid #033388; }
.text-rgb { color: rgb(3, 51, 136); }
.text-hsl { color: hsl(218, 96%, 27%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #033388; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(3, 51, 136, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #033388; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(3, 51, 136, 0.8); }

HTML: <p style="color:#033388">Text here</p> · <div style="background-color:#033388">Div content here</div>

Shades of #033388

Tints of #033388

Tones of #033388

Color harmonies

Complementary — #875603:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #033388: #FFFFFF.

Semi-transparent (opacity) text on #033388

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 #033388 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 #033388 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

← #033387  ·  #033389 →

Frequently asked questions

What color is #033388?

#033388 is Deep Vivid Blue, a blue color (RGB 3, 51, 136). Its closest standard named color is MidnightBlue.

What is the RGB and HSL of #033388?

#033388 is RGB 3, 51, 136 — HSL 218°, 96%, 27% — CMYK 98%, 63%, 0%, 47%.

What colors go with #033388?

Its complement is #875603; analogous partners are #037587 and #140387. It also appears in 6+ palettes in our collection.

Can I use #033388 for text?

White text on #033388 has a contrast ratio of 11.46:1 (passes WCAG AA); black text gives 1.83:1.