Dark Slate Blue

Dark Slate Blue is a dark, moderately saturated blue-violet color with the hex code #483D8B (hue 248°, saturation 39%, lightness 39%). It is also the CSS named color darkslateblue.

#483D8B

	Name	HEX	RGB	HSL	CMYK	OKLCH
	Dark Slate Blue	`#483D8B`	72, 61, 139	248°, 39%, 39%	48, 56, 0, 45	41.4% 0.125 286

Contrast with white text 9.07:1, with black text 2.32:1 — use white text on Dark Slate Blue.

darkslateblue is one of the 148 named colors in CSS, with exactly this value, so color: darkslateblue works in any browser without a hex code.

Huebook · Maintained by Iris Marlow (pen name) · automated checks · Data: color-name-list (MIT) for names; CSS Color Module Level 4 (W3C) for CSS named colors · Updated Oct 19, 2026 · How the checks work

Tints and shades

#DEDCEF

#ADA6D8

#7C71C1

#5346A0

#372F6A

#1C1735

Colors that go with Dark Slate Blue

Six color schemes built on Dark Slate Blue with classic harmony rules. The complementary scheme pairs it with Witch Brew (#888738), the color opposite it on the color wheel.

Nearest CSS named colors

Rebecca Purple (rebeccapurple): Rebecca Purple (#663399) is lighter than Dark Slate Blue (relative luminance 0.075 vs 0.066) and more saturated, with its hue 22° away.
Indigo (indigo): Indigo (#4B0082) is darker than Dark Slate Blue (relative luminance 0.031 vs 0.066) and more saturated, with its hue 26° away.
Dark Slate Gray (darkslategray): Dark Slate Gray (#2F4F4F) is about as light as Dark Slate Blue (relative luminance 0.068 vs 0.066) and less saturated, with its hue 68° away.
Midnight Blue (midnightblue): Midnight Blue (#191970) is darker than Dark Slate Blue (relative luminance 0.021 vs 0.066) and more saturated, with its hue 8° away.

Similar dark blue colors

Questions

What is the hex code for Dark Slate Blue?

#483D8B — RGB 72, 61, 139, HSL 248°, 39%, 39%.

Is Dark Slate Blue a warm or cool color?

Cool — its hue sits at 248° on the color wheel.