Palettes / Colors / #033588

#033588 — Deep Vivid Blue

#033588 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 #033588 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.

#033588 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 #875403; it also sits naturally between #037887 and #120387. 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 21% · Blue 53%

Cyan 98% · Magenta 61% · Yellow 0% · Key 47%

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

Previews

CSS code for #033588

.text { color: #033588; }
.background { background-color: #033588; }
.border { border: 3px solid #033588; }
.text-rgb { color: rgb(3, 53, 136); }
.text-hsl { color: hsl(217, 96%, 27%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #033588; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(3, 53, 136, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #033588; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(3, 53, 136, 0.8); }

HTML: <p style="color:#033588">Text here</p> · <div style="background-color:#033588">Div content here</div>

Shades of #033588

Tints of #033588

Tones of #033588

Color harmonies

Complementary — #875403:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #033588: #FFFFFF.

Semi-transparent (opacity) text on #033588

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 #033588 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 #033588 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

← #033587  ·  #033589 →

Frequently asked questions

What color is #033588?

#033588 is Deep Vivid Blue, a blue color (RGB 3, 53, 136). Its closest standard named color is MidnightBlue.

What is the RGB and HSL of #033588?

#033588 is RGB 3, 53, 136 — HSL 217°, 96%, 27% — CMYK 98%, 61%, 0%, 47%.

What colors go with #033588?

Its complement is #875403; analogous partners are #037887 and #120387. It also appears in 6+ palettes in our collection.

Can I use #033588 for text?

White text on #033588 has a contrast ratio of 11.24:1 (passes WCAG AA); black text gives 1.87:1.