#818173
Closest named color: Medium Grey (#7D7F7C). oklch(59.9% 0.021 107), rgb(129, 129, 115).
Aa
Black text reads best on this color (5.32:1).
About this color
#818173 is a medium-dark close to neutral grey. In OKLCH its lightness is 60%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Medium Grey (#7D7F7C), ΔE 0.017 away. Black text reads best on it, at 5.32:1.
| Hue family | Neutrals |
| Lightness | medium-dark (60%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Medium Grey (#7D7F7C) |
| Black text | 5.32:1 |
| White text | 3.94:1 |
Values
| HEX | #818173 |
| RGB | rgb(129, 129, 115) |
| HSL | hsl(60, 6%, 48%) |
| OKLCH | oklch(59.9% 0.021 107) |
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 #818173 | 3.94:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #818173 | 5.32:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #818173 text on white | 3.94:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #818173 text on black | 5.32:1 | AA | Lc -34.8 | 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
#F5F5F4
oklch(97% 0.001 106.4)
-
Step 100
100
#EAEAE8
oklch(93.6% 0.003 106.5)
-
Step 200
200
#D9D9D5
oklch(88.4% 0.005 106.5)
-
Step 300
300
#C1C1BA
oklch(80.9% 0.01 106.6)
-
Step 400
400
#A1A196
oklch(70.6% 0.016 106.8)
-
Step 500
500 (this color)
#818173
oklch(59.9% 0.021 107)
-
Step 600
600
#747465
oklch(55.4% 0.023 107.1)
-
Step 700
700
#626254
oklch(49.2% 0.022 107.2)
-
Step 800
800
#505045
oklch(42.8% 0.018 107.1)
-
Step 900
900
#42423A
oklch(37.6% 0.013 107)
-
Step 950
950
#272722
oklch(27.1% 0.009 107)
#818173 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) | #848072 | 0.005 |
| Deuteranopia (no green cones) | #848073 | 0.005 |
| Tritanopia (no blue cones) | #837F7D | 0.018 |
| Achromatopsia (no color) | #808080 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #818173
#818173
oklch(59.9% 0.021 107)
- #7F7E8C
#7F7E8C
oklch(59.9% 0.021 289)
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 #818173, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Grey #7D7F7C ΔE 0.017
- Gray #808080 ΔE 0.021
- Brown Grey #8D8468 ΔE 0.027
- Steel Grey #6F828A ΔE 0.040
- Battleship Grey #6B7C85 ΔE 0.046
- Reddish Grey #997570 ΔE 0.047
- Warm Grey #978A84 ΔE 0.048
- Slate Gray #708090 ΔE 0.049
Use #818173 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.