What is the hex code for Light Slate Gray?

Light Slate Gray is #778899. In CSS the keyword lightslategray, the hex #778899, rgb(119, 136, 153) and hsl(210, 14%, 53%) all paint the same color. The keyword lightslategrey resolves to the same color.

What is the opposite of Light Slate Gray on the color wheel?

The opposite (complementary) color is #998877, the same saturation and lightness rotated 180° around the HSL wheel. Complementary pairs give the strongest contrast, which is why the complement should be used sparingly rather than at equal weight.

Can I use Light Slate Gray for text?

Light Slate Gray as text on white has a contrast ratio of 3.64:1, which fails WCAG AA for body text (4.5:1) but passes for large text and UI components (3:1). On black it is 5.77:1, which passes for body text. Use it as text on dark surfaces, or as a fill with dark text on top.

CSS color names · Grays

Light Slate Gray color: hex #778899, RGB and HSL

Light Slate Gray is the CSS keyword lightslategray (also lightslategrey), hex #778899, rgb(119, 136, 153), hsl(210, 14%, 53%). It is a medium, soft blue in the grays family. Below: the colors that go with it, its tints and shades, how it reads as text, and a complete interface palette built from it.

CSS name: lightslategray, lightslategrey
Hex: #778899
RGB: rgb(119, 136, 153)
HSL: hsl(210, 14%, 53%)
On white: 3.64:1 — large text and UI only (3:1)
On black: 5.77:1 — passes AA for body text

.example {
  color: lightslategray;          /* keyword */
  color: #778899;          /* hex */
  color: rgb(119, 136, 153); /* rgb */
  color: hsl(210, 14%, 53%); /* hsl */
}

What colors go with light slate gray

Each match keeps light slate gray's saturation and lightness and rotates only the hue, so the relationship is the wheel's and nothing else. Any of these can be an accent beside light slate gray as the primary; the harmony guides explain which rule suits which interface.

Complementary

The opposite hue, 180° away — the strongest contrast, best kept to one accent per screen.

#998877

Split-complementary

The two neighbors of the complement, at 150° and 210° — most of the contrast with less tension, and two accents instead of one.

#997777

#999977

Triadic

Two hues at 120° and 240° — three evenly spaced signals, the scheme charts and category colors want.

#997788

#889977

Analogous

The neighbors at −30° and +30° — calm and cohesive, with emphasis coming from weight and size rather than hue.

#779999

#777799

Tints and shades of light slate gray

Tints add lightness toward white; shades remove it toward black. The hue and saturation stay fixed, so every step still reads as light slate gray — these are the hover, pressed, disabled and surface variants a single brand color needs.

Tints (lighter)

#8e9caa

#a4b0bb

#bbc4cc

#d2d7dd

#e8ebee

Shades (darker)

#617182

#4e5b68

#3a444e

#272d34

#13171a

A UI color palette built from light slate gray

The eight semantic roles an interface actually uses, derived from light slate gray as the primary with the split-complementary rule: secondary and accent rotate around the wheel, and the five neutrals take the hue at lightness steps tuned for light and dark mode. This is the same derivation the palette generator runs — open it there to change the rule, drag the anchors, or export the set as CSS variables.

Light mode

primary: #778899
secondary: #997777
accent: #999977
background: #fcfcfd
surface: #f4f5f5
text: #171a1c
muted: #6c7379
border: #e4e6e7

Dark mode

primary: #7c8c9d
secondary: #9d7c7c
accent: #9d9d7c
background: #131416
surface: #1c1f21
text: #f4f5f5
muted: #a2a6aa
border: #34383c

Open light slate gray in the palette generator

Using light slate gray in an interface

Grays are text, borders and disabled states. The slate grays are the useful ones: a whisper of blue keeps them from looking like dirt against a colored primary. A semantic palette tints its grays toward the brand hue for the same reason. Whichever role light slate gray takes, define it once as a token rather than repeating the keyword: the semantic palette guide covers the eight roles, and the guides to complementary, triadic and the other color schemes explain how to weight the matches above.

What is the hex code for Light Slate Gray?: Light Slate Gray is #778899. In CSS the keyword lightslategray, the hex #778899, rgb(119, 136, 153) and hsl(210, 14%, 53%) all paint the same color. The keyword lightslategrey resolves to the same color.
What colors go with Light Slate Gray?: Its complement is #998877, the split-complementary pair is #997777 and #999977, the triadic partners are #997788 and #889977, and the analogous neighbors are #779999 and #777799. In an interface, use Light Slate Gray for most colored elements and one of these for a single accent, at roughly an 80/20 split.
What is the opposite of Light Slate Gray on the color wheel?: The opposite (complementary) color is #998877, the same saturation and lightness rotated 180° around the HSL wheel. Complementary pairs give the strongest contrast, which is why the complement should be used sparingly rather than at equal weight.
Can I use Light Slate Gray for text?: Light Slate Gray as text on white has a contrast ratio of 3.64:1, which fails WCAG AA for body text (4.5:1) but passes for large text and UI components (3:1). On black it is 5.77:1, which passes for body text. Use it as text on dark surfaces, or as a fill with dark text on top.