#817591
Closest named color: Purple Grey (#866F85). oklch(58.3% 0.044 304.5), rgb(129, 117, 145).
Aa
Black text reads best on this color (4.88:1).
About this color
#817591 is a medium-dark, muted purple. In OKLCH its lightness is 58%, its chroma 0.044 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Grey (#866F85), ΔE 0.021 away. Black text reads best on it, at 4.88:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Purple Grey (#866F85) |
| Black text | 4.88:1 |
| White text | 4.29:1 |
Values
| HEX | #817591 |
| RGB | rgb(129, 117, 145) |
| HSL | hsl(266, 11%, 51%) |
| OKLCH | oklch(58.3% 0.044 304.5) |
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 #817591 | 4.29:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #817591 | 4.88:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #817591 text on white | 4.29:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #817591 text on black | 4.88:1 | AA | Lc -31.9 | 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
#C3BECB
oklch(80.9% 0.019 303.4)
-
Step 400
400
#A59CB1
oklch(70.7% 0.032 304.9)
-
Step 500
500
#8F849E
oklch(63.2% 0.04 304.4)
-
Step 600
600 (this color)
#817591
oklch(58.3% 0.044 304.5)
-
Step 700
700
#665B74
oklch(49.1% 0.041 304.9)
-
Step 800
800
#534A5E
oklch(42.6% 0.034 305.4)
-
Step 900
900
#453E4D
oklch(37.7% 0.027 306.2)
-
Step 950
950
#28242D
oklch(26.9% 0.017 305.4)
#817591 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) | #707A92 | 0.027 |
| Deuteranopia (no green cones) | #727A90 | 0.026 |
| Tritanopia (no blue cones) | #7F797E | 0.035 |
| Achromatopsia (no color) | #7A7A7A | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817591
#817591
oklch(58.3% 0.044 304.5)
- #758063
#758063
oklch(58.3% 0.045 124.7)
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 #817591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Grey #866F85 ΔE 0.021
- Grey Purple #826D8C ΔE 0.021
- Lavender Gray #7E7F9A ΔE 0.027
- Faded Purple #916E99 ΔE 0.036
- Slate Gray #708090 ΔE 0.039
- Purpley Grey #947E94 ΔE 0.041
- Dark Lavender #856798 ΔE 0.043
- Battleship Grey #6B7C85 ΔE 0.045
Use #817591 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.