#91579D
Closest named color: Deep Lavender (#8D5EB7). oklch(54.9% 0.123 320.6), rgb(145, 87, 157).
Aa
White text reads best on this color (5.17:1).
About this color
#91579D is a medium-dark, moderately saturated purple. In OKLCH its lightness is 55%, its chroma 0.123 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Lavender (#8D5EB7), ΔE 0.041 away. White text reads best on it, at 5.17:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Deep Lavender (#8D5EB7) |
| Black text | 4.05:1 |
| White text | 5.17:1 |
Values
| HEX | #91579D |
| RGB | rgb(145, 87, 157) |
| HSL | hsl(290, 29%, 48%) |
| OKLCH | oklch(54.9% 0.123 320.6) |
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 #91579D | 5.17:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #91579D | 4.05:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #91579D text on white | 5.17:1 | AA | Lc 75.4 | Fine for body text |
| #91579D text on black | 4.05:1 | AA large text | Lc -26.3 | Dividers and decoration only |
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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EFE7F1
oklch(93.7% 0.016 319.4)
-
Step 200
200
#E3D3E6
oklch(88.5% 0.031 320.9)
-
Step 300
300
#D1B5D7
oklch(80.8% 0.056 320.3)
-
Step 400
400
#BA8FC3
oklch(70.8% 0.088 320.5)
-
Step 500
500
#A872B3
oklch(63.1% 0.112 320.6)
-
Step 600
600 (this color)
#91579D
oklch(54.9% 0.123 320.6)
-
Step 700
700
#7D4988
oklch(49.1% 0.114 320.4)
-
Step 800
800
#663C6F
oklch(42.7% 0.095 320.4)
-
Step 900
900
#53345A
oklch(37.8% 0.074 320.1)
-
Step 950
950
#311F34
oklch(27.1% 0.045 321.6)
#91579D 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) | #4D699F | 0.111 |
| Deuteranopia (no green cones) | #5D6F9B | 0.099 |
| Tritanopia (no blue cones) | #926072 | 0.078 |
| Achromatopsia (no color) | #6D6D6D | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91579D
#91579D
oklch(54.9% 0.123 320.6)
- #45823A
#45823A
oklch(54.8% 0.123 140.7)
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 #91579D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lavender #8D5EB7 ΔE 0.041
- Dark Lavender #856798 ΔE 0.046
- Light Plum #9D5783 ΔE 0.047
- Muted Purple #805B87 ΔE 0.049
- Dusty Purple #825F87 ΔE 0.051
- Light Eggplant #894585 ΔE 0.054
- Dull Purple #84597E ΔE 0.056
- Amethyst #9B5FC0 ΔE 0.057
Use #91579D 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.