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Light Slate Gray

Hex #778899, rgb(119 136 153). A gray or black CSS named color.

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Light Slate Gray color codes

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HEX
RGB
HSL
HSV
HWB
CMYK
OKLCH
OKLab
Lab
LCH
CSS keyword

About Light Slate Gray

Light Slate Gray is a medium neutral gray with the hex code #778899. In RGB it is made of 119 red, 136 green and 153 blue; in HSL its hue is 210°, with 14% saturation and 53% lightness. Its perceptual lightness (OKLCH L) is 61.9%.

It is a CSS named color, so you can write "lightslategray" or "lightslategrey" anywhere CSS accepts a color. Against white it has a contrast ratio of 3.64:1 and against black 5.77:1, so black text reads better on it and passes WCAG AA for normal text.

Also written as Light Slate Grey: CSS treats both spellings as the same color.

Tints, shades and tones

Light Slate Gray mixed step by step with white, black and middle gray (#808080).

Tints (with white)

Shades (with black)

Tones (with gray)

Light Slate Gray 50-950 scale

A Tailwind-style scale built in OKLCH; the original color sits on the step with the closest lightness.

Colors that go with Light Slate Gray

Color harmonies rotate the hue in OKLCH and keep the lightness and chroma. Each color links to its closest named color.

Complementary

Analogous

Triadic

Split complementary

Tetradic

Square

Monochromatic

Contrast and readability

WCAG 2 contrast of Light Slate Gray with white and black. The readable text color on Light Slate Gray is black.

Light Slate Gray textSmall text on white

On white3.64:1

  • AA fail
  • AA Large pass
  • AAA fail
  • UI 3:1 pass

APCA Lc 64

Light Slate Gray textSmall text on black

On black5.77:1

  • AA pass
  • AA Large pass
  • AAA fail
  • UI 3:1 pass

APCA Lc -38

Black text on Light Slate Gray (#000000)

Test any pair in the contrast checker.

Color blindness preview

How Light Slate Gray appears with each type of color vision deficiency (simulated with the Machado model).

  • Protanopia#82889A
  • Deuteranopia#7E8499
  • Tritanopia#6E8C8D
  • Protanomaly#7F889A
  • Deuteranomaly#7C8599
  • Tritanomaly#748A94
  • Achromatopsia#868686

Colors similar to Light Slate Gray

The closest named colors by perceptual difference (OKLab).

Use Light Slate Gray in CSS and Tailwind

CSS
.light-slate-gray {
  color: lightslategray; /* #778899 */
  background-color: rgb(119 136 153);
  border-color: oklch(61.9% 0.032 248.4);
}
Tailwind CSS
/* Tailwind CSS v4: bg-light-slate-gray-500, text-light-slate-gray-700... */
@theme {
  --color-light-slate-gray-50: #F9FAFC;
  --color-light-slate-gray-100: #EBEEF1;
  --color-light-slate-gray-200: #D6DCE1;
  --color-light-slate-gray-300: #B7C1CB;
  --color-light-slate-gray-400: #8F9EAD;
  --color-light-slate-gray-500: #778899;
  --color-light-slate-gray-600: #647484;
  --color-light-slate-gray-700: #505D6B;
  --color-light-slate-gray-800: #404B55;
  --color-light-slate-gray-900: #343C45;
  --color-light-slate-gray-950: #11171C;
}

<!-- or the exact color, no config -->
<div class="bg-[#778899] text-[#000000]">…</div>