Palettes / Colors / #203CBB

#203CBB — Blue

#203CBB is a blue color we call 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 #203CBB 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.

#203CBB 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 #BC9F20; it also sits naturally between #208ABC and #5120BC. 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 13% · Green 24% · Blue 73%

Cyan 83% · Magenta 68% · Yellow 0% · Key 27%

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

Previews

CSS code for #203CBB

.text { color: #203CBB; }
.background { background-color: #203CBB; }
.border { border: 3px solid #203CBB; }
.text-rgb { color: rgb(32, 60, 187); }
.text-hsl { color: hsl(229, 71%, 43%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #203CBB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(32, 60, 187, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #203CBB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(32, 60, 187, 0.8); }

HTML: <p style="color:#203CBB">Text here</p> · <div style="background-color:#203CBB">Div content here</div>

Shades of #203CBB

Tints of #203CBB

Tones of #203CBB

Color harmonies

Complementary — #BC9F20:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #203CBB: #FFFFFF.

Semi-transparent (opacity) text on #203CBB

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 #203CBB 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 #203CBB 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

← #203CBA  ·  #203CBC →

Frequently asked questions

What color is #203CBB?

#203CBB is Blue, a blue color (RGB 32, 60, 187). Its closest standard named color is DarkSlateBlue.

What is the RGB and HSL of #203CBB?

#203CBB is RGB 32, 60, 187 — HSL 229°, 71%, 43% — CMYK 83%, 68%, 0%, 27%.

What colors go with #203CBB?

Its complement is #BC9F20; analogous partners are #208ABC and #5120BC. It also appears in 6+ palettes in our collection.

Can I use #203CBB for text?

White text on #203CBB has a contrast ratio of 8.66:1 (passes WCAG AA); black text gives 2.43:1.