#818E8D
Closest named color: Light Slate Gray (#778899). oklch(63.6% 0.015 191.2), rgb(129, 142, 141).
Aa
Black text reads best on this color (6.18:1).
About this color
#818E8D is a medium-light close to neutral grey. In OKLCH its lightness is 64%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Light Slate Gray (#778899), ΔE 0.032 away. Black text reads best on it, at 6.18:1.
| Hue family | Neutrals |
| Lightness | medium-light (64%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 6.18:1 |
| White text | 3.39:1 |
Values
| HEX | #818E8D |
| RGB | rgb(129, 142, 141) |
| HSL | hsl(175, 5%, 53%) |
| OKLCH | oklch(63.6% 0.015 191.2) |
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 #818E8D | 3.39:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #818E8D | 6.18:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #818E8D text on white | 3.39:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #818E8D text on black | 6.18:1 | AA | Lc -40.2 | Non-text elements, placeholder text |
Tints and shades
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
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D6DADA
oklch(88.5% 0.004 197.1)
-
Step 300
300
#BBC2C2
oklch(80.9% 0.008 197)
-
Step 400
400
#99A3A2
oklch(70.7% 0.011 189.7)
-
Step 500
500 (this color)
#818E8D
oklch(63.6% 0.015 191.2)
-
Step 600
600
#697776
oklch(55.7% 0.017 191.5)
-
Step 700
700
#576463
oklch(49.2% 0.016 191)
-
Step 800
800
#475151
oklch(42.6% 0.013 196.7)
-
Step 900
900
#3C4343
oklch(37.6% 0.009 196.8)
-
Step 950
950
#232727
oklch(26.9% 0.006 196.8)
#818E8D 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) | #8C8C8D | 0.016 |
| Deuteranopia (no green cones) | #8A8A8D | 0.016 |
| Tritanopia (no blue cones) | #7E8F8E | 0.005 |
| Achromatopsia (no color) | #8B8B8B | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818E8D
#818E8D
oklch(63.6% 0.015 191.2)
- #948788
#948788
oklch(63.5% 0.016 12.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #818E8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.032
- Warm Grey #978A84 ΔE 0.032
- Blue Grey #758DA3 ΔE 0.037
- Steel #738595 ΔE 0.038
- Gray #808080 ΔE 0.039
- Medium Grey #7D7F7C ΔE 0.044
- Steel Grey #6F828A ΔE 0.044
- Silver Lake Blue #778DA9 ΔE 0.045
Use #818E8D 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.