#9B51D0
Closest named color: Amethyst (#9B5FC0). oklch(58.1% 0.193 308.4), rgb(155, 81, 208).
Aa
White text reads best on this color (4.68:1).
About this color
#9B51D0 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.193 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.042 away. White text reads best on it, at 4.68:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.193) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.48:1 |
| White text | 4.68:1 |
Values
| HEX | #9B51D0 |
| RGB | rgb(155, 81, 208) |
| HSL | hsl(275, 57%, 57%) |
| OKLCH | oklch(58.1% 0.193 308.4) |
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 #9B51D0 | 4.68:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #9B51D0 | 4.48:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #9B51D0 text on white | 4.68:1 | AA | Lc 72.0 | Content text, not long reading |
| #9B51D0 text on black | 4.48:1 | AA large text | Lc -29.7 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE6F7
oklch(93.7% 0.025 309.4)
-
Step 200
200
#E2D1F2
oklch(88.5% 0.048 308.5)
-
Step 300
300
#D0B2EC
oklch(80.9% 0.086 308)
-
Step 400
400
#B987E3
oklch(70.7% 0.14 308.2)
-
Step 500
500
#A866DA
oklch(63.2% 0.177 308.4)
-
Step 600
600 (this color)
#9B51D0
oklch(58.1% 0.193 308.4)
-
Step 700
700
#7E39AC
oklch(49.1% 0.179 308.8)
-
Step 800
800
#66308C
oklch(42.7% 0.15 308.3)
-
Step 900
900
#532C70
oklch(37.7% 0.117 308.3)
-
Step 950
950
#311B41
oklch(27.1% 0.072 309.1)
#9B51D0 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) | #1571D4 | 0.167 |
| Deuteranopia (no green cones) | #3E75CD | 0.148 |
| Tritanopia (no blue cones) | #936A89 | 0.136 |
| Achromatopsia (no color) | #747474 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9B51D0
#9B51D0
oklch(58.1% 0.193 308.4)
- #5F8B00
#5F8B00
oklch(58.2% 0.153 128.5)
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 #9B51D0, closest first.
No curated palette has a color within ΔE 0.04 of #9B51D0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.042
- Purpley #8756E4 ΔE 0.048
- Dark Orchid #9932CC ΔE 0.054
- Deep Lavender #8D5EB7 ΔE 0.055
- Purply #983FB2 ΔE 0.055
- Lighter Purple #A55AF4 ΔE 0.058
- Medium Orchid #BA55D3 ΔE 0.059
- Medium Purple #9370DB ΔE 0.068
Use #9B51D0 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.