Light Slate Gray #778899
Light Slate Gray is a medium-dark, muted blue with hex code #778899 and RGB rgb(119, 136, 153).
Aa
Black text reads best on this color (5.76:1).
About this color
#778899 is a medium-dark, muted blue. In OKLCH its lightness is 62%, its chroma 0.032 and its hue 248°. Its hue sits on the cool side of the wheel. It is the named color Light Slate Gray. Black text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Light Slate Gray |
| Black text | 5.76:1 |
| White text | 3.64:1 |
Colors that go with Light Slate Gray
Matches found by rotating Light Slate Gray around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Light Slate Gray
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Light Slate Gray, closest first.
Similar named colors
The eight named colors closest to Light Slate Gray, with their ΔE distance.
- Steel #738595 ΔE 0.011
- Blue Grey #758DA3 ΔE 0.017
- Silver Lake Blue #778DA9 ΔE 0.024
- Slate Gray #708090 ΔE 0.027
- Lavender Gray #7E7F9A ΔE 0.027
- Steel Grey #6F828A ΔE 0.028
- Gray #808080 ΔE 0.038
- Medium Grey #7D7F7C ΔE 0.043
More about Light Slate Gray
How to make Light Slate Gray
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 3 parts gray
- 1 part blue
- 1 part pink
Recipe result: #738792, a difference of ΔE 0.012 from Light Slate Gray. That is very close: most people will not see the difference.
Codes for Light Slate Gray in every format
| HEX | #778899 |
| RGB | rgb(119, 136, 153) |
| HSL | hsl(210, 14%, 53%) |
| OKLCH | oklch(61.9% 0.032 248.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #778899 | 3.64:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #778899 | 5.76:1 | AA | Lc 40.1 | Non-text elements, placeholder text |
| #778899 text on white | 3.64:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #778899 text on black | 5.76:1 | AA | Lc -37.7 | Non-text elements, placeholder text |
Shades and tints of Light Slate Gray
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAED
oklch(93.6% 0.005 247.9)
-
Step 200
200
#D5DADF
oklch(88.6% 0.009 247.9)
-
Step 300
300
#B9C2CB
oklch(81% 0.016 248)
-
Step 400
400
#95A2B0
oklch(70.6% 0.025 250.2)
-
Step 500
500 (this color)
#778899
oklch(61.9% 0.032 248.4)
-
Step 600
600
#637687
oklch(55.7% 0.035 245.5)
-
Step 700
700
#526373
oklch(49.2% 0.033 246.9)
-
Step 800
800
#44515E
oklch(42.9% 0.027 248.5)
-
Step 900
900
#39434D
oklch(37.8% 0.022 248.4)
-
Step 950
950
#21272D
oklch(26.9% 0.014 248.4)
Light Slate Gray with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #82889A | 0.015 |
| Deuteranopia (no green cones) | #7E8499 | 0.014 |
| Tritanopia (no blue cones) | #6E8C8D | 0.028 |
| Achromatopsia (no color) | #868686 | 0.033 |
Use Light Slate Gray in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.