#818191
Closest named color: Lavender Gray (#7E7F9A). oklch(60.9% 0.024 285.7), rgb(129, 129, 145).
Aa
Black text reads best on this color (5.48:1).
About this color
#818191 is a medium-dark close to neutral grey. In OKLCH its lightness is 61%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.017 away. Black text reads best on it, at 5.48:1.
| Hue family | Neutrals |
| Lightness | medium-dark (61%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Lavender Gray (#7E7F9A) |
| Black text | 5.48:1 |
| White text | 3.83:1 |
Values
| HEX | #818191 |
| RGB | rgb(129, 129, 145) |
| HSL | hsl(240, 7%, 54%) |
| OKLCH | oklch(60.9% 0.024 285.7) |
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 #818191 | 3.83:1 | AA large text | Lc -71.3 | Content text, not long reading |
| Black text on #818191 | 5.48:1 | AA | Lc 38.3 | Non-text elements, placeholder text |
| #818191 text on white | 3.83:1 | AA large text | Lc 65.8 | Content text, not long reading |
| #818191 text on black | 5.48:1 | AA | Lc -35.8 | 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
#F5F5F6
oklch(97% 0.001 286.4)
-
Step 100
100
#E9E9EC
oklch(93.5% 0.004 286.3)
-
Step 200
200
#D8D8DD
oklch(88.4% 0.007 286.3)
-
Step 300
300
#C0C0C8
oklch(81% 0.011 286.1)
-
Step 400
400
#9F9FAC
oklch(70.7% 0.019 285.9)
-
Step 500
500 (this color)
#818191
oklch(60.9% 0.024 285.7)
-
Step 600
600
#717182
oklch(55.5% 0.026 285.5)
-
Step 700
700
#5F5F6E
oklch(49.1% 0.024 285.5)
-
Step 800
800
#4E4E5A
oklch(42.8% 0.02 285.5)
-
Step 900
900
#41414A
oklch(37.9% 0.015 285.7)
-
Step 950
950
#26262B
oklch(27.1% 0.009 285.8)
#818191 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) | #7D8392 | 0.007 |
| Deuteranopia (no green cones) | #7D8291 | 0.006 |
| Tritanopia (no blue cones) | #7E8486 | 0.022 |
| Achromatopsia (no color) | #828282 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818191
#818191
oklch(60.9% 0.024 285.7)
- #848474
#848474
oklch(60.9% 0.023 107.1)
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 #818191, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Gray #7E7F9A ΔE 0.017
- Steel #738595 ΔE 0.021
- Light Slate Gray #778899 ΔE 0.022
- Slate Gray #708090 ΔE 0.025
- Gray #808080 ΔE 0.026
- Steel Grey #6F828A ΔE 0.029
- Purpley Grey #947E94 ΔE 0.030
- Medium Grey #7D7F7C ΔE 0.032
Use #818191 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.