Dark Slate Blue

Cool depth with a muted finish

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Dark Slate Blue is a dark, dusty blue with cool slate undertones and low saturation. Its muted depth suits security, finance, and corporate backgrounds as a dominant base. Pair it with burgundy for a richer palette, while white text provides strong readability. The hex code for Dark Slate Blue is #214761.

About Dark Slate Blue

Harbor water an hour past sunset

What does dark slate blue mean?

Navy and steel blues often stand for authority, uniforms, night, and institutions that want to look steady. Its low light and muted saturation give it a shut-in weight, like a room with the blinds drawn.

Where you see dark slate blue

denim
deep lake water
chalkboards
peacoats
filing cabinets
evening sea

What it works for

Use it as a dark base for dashboards, night scenes, finance sites, and charts that need a steady backdrop.

What colors go with dark slate blue?

Burnt Sienna #a93400Warm rust against cold blue creates a sharp temperature push.Mustard #ffdb58Mustard's heat cuts through the dim blue without clashing.Sage #9caf88Both colors are muted, so they sit together at low volume.Cream #fffdd0Cream lifts this dark blue and gives it breathing room.

Questions about Dark Slate Blue

What is the hex code for Dark Slate Blue?

Dark Slate Blue is #214761. In RGB that is rgb(33, 71, 97), in HSL hsl(204, 49%, 25%) and in CMYK 66%, 27%, 0%, 62%.

Is Dark Slate Blue #214761 warm or cool?

Dark Slate Blue #214761 reads as a cool color because its blue base and slate undertones reduce warmth. Its low saturation softens that coolness, creating a calm, reserved mood rather than a vivid or icy effect.

Is Dark Slate Blue readable on white or black?

Dark Slate Blue has a 9.81:1 contrast ratio on white and 2.13:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works for body text and on black it is too faint for text. Try other pairs in the contrast checker.