#81728D
Closest named color: Grey Purple (#826D8C). oklch(57.5% 0.044 310), rgb(129, 114, 141).
Aa
Black text reads best on this color (4.72:1).
About this color
#81728D is a medium-dark, muted purple. In OKLCH its lightness is 58%, its chroma 0.044 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grey Purple (#826D8C), ΔE 0.014 away. Black text reads best on it, at 4.72:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Grey Purple (#826D8C) |
| Black text | 4.72:1 |
| White text | 4.44:1 |
Values
| HEX | #81728D |
| RGB | rgb(129, 114, 141) |
| HSL | hsl(273, 11%, 50%) |
| OKLCH | oklch(57.5% 0.044 310) |
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 #81728D | 4.44:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #81728D | 4.72:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #81728D text on white | 4.44:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #81728D text on black | 4.72:1 | AA | Lc -30.8 | 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 600.
-
Step 50
50
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EBE9ED
oklch(93.7% 0.006 308.4)
-
Step 200
200
#DBD7DF
oklch(88.5% 0.012 308.3)
-
Step 300
300
#C4BDCA
oklch(80.8% 0.02 309.8)
-
Step 400
400
#A79BB0
oklch(70.7% 0.033 310.9)
-
Step 500
500
#91839C
oklch(63.1% 0.04 310.3)
-
Step 600
600 (this color)
#81728D
oklch(57.5% 0.044 310)
-
Step 700
700
#685A73
oklch(49% 0.043 310)
-
Step 800
800
#554A5D
oklch(42.7% 0.034 310.9)
-
Step 900
900
#463E4C
oklch(37.7% 0.026 310.7)
-
Step 950
950
#29242D
oklch(27% 0.018 310.1)
#81728D 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) | #6E778E | 0.030 |
| Deuteranopia (no green cones) | #71788C | 0.029 |
| Tritanopia (no blue cones) | #80757B | 0.032 |
| Achromatopsia (no color) | #787878 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #81728D
#81728D
oklch(57.5% 0.044 310)
- #707F63
#707F63
oklch(57.6% 0.045 130.7)
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 #81728D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Purple #826D8C ΔE 0.014
- Purple Grey #866F85 ΔE 0.014
- Faded Purple #916E99 ΔE 0.036
- Lavender Gray #7E7F9A ΔE 0.036
- Dark Lavender #856798 ΔE 0.039
- Slate Gray #708090 ΔE 0.044
- Battleship Gray #6C757D ΔE 0.044
- Battleship Grey #6B7C85 ΔE 0.046
Use #81728D 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.