Palettes / Colors / #181981

#181981 — Blue

#181981 is a blue color we call 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 #181981 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.

#181981 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 #818018; it also sits naturally between #184E81 and #4B1881. 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 9% · Green 10% · Blue 51%

Cyan 81% · Magenta 81% · Yellow 0% · Key 49%

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

Previews

CSS code for #181981

.text { color: #181981; }
.background { background-color: #181981; }
.border { border: 3px solid #181981; }
.text-rgb { color: rgb(24, 25, 129); }
.text-hsl { color: hsl(239, 69%, 30%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #181981; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(24, 25, 129, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #181981; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(24, 25, 129, 0.8); }

HTML: <p style="color:#181981">Text here</p> · <div style="background-color:#181981">Div content here</div>

Shades of #181981

Tints of #181981

Tones of #181981

Color harmonies

Complementary — #818018:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #181981: #FFFFFF.

Semi-transparent (opacity) text on #181981

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 #181981 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 #181981 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

← #181980  ·  #181982 →

Frequently asked questions

What color is #181981?

#181981 is Blue, a blue color (RGB 24, 25, 129). Its closest standard named color is MidnightBlue.

What is the RGB and HSL of #181981?

#181981 is RGB 24, 25, 129 — HSL 239°, 69%, 30% — CMYK 81%, 81%, 0%, 49%.

What colors go with #181981?

Its complement is #818018; analogous partners are #184E81 and #4B1881. It also appears in 6+ palettes in our collection.

Can I use #181981 for text?

White text on #181981 has a contrast ratio of 14.05:1 (passes WCAG AA); black text gives 1.49:1.