#511550
Closest named color: Plum Purple (#4E0550). oklch(32.1% 0.117 328.6), rgb(81, 21, 80).
Aa
White text reads best on this color (13.35:1).
About this color
#511550 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.117 and its hue 329°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.025 away. White text reads best on it, at 13.35:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.57:1 |
| White text | 13.35:1 |
Values
| HEX | #511550 |
| RGB | rgb(81, 21, 80) |
| HSL | hsl(301, 59%, 20%) |
| OKLCH | oklch(32.1% 0.117 328.6) |
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 #511550 | 13.35:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #511550 | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #511550 text on white | 13.35:1 | AAA | Lc 99.0 | Preferred for body text |
| #511550 text on black | 1.57:1 | Fails | Lc 0.0 | Not readable |
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 950.
-
Step 50
50
#FDF1FC
oklch(97.1% 0.019 328.3)
-
Step 100
100
#FAE1F7
oklch(93.6% 0.04 329.7)
-
Step 200
200
#F6C8F3
oklch(88.6% 0.076 328.3)
-
Step 300
300
#F19FED
oklch(80.9% 0.139 328.5)
-
Step 400
400
#E762E4
oklch(70.8% 0.222 328.5)
-
Step 500
500
#DC11DB
oklch(63% 0.284 328.6)
-
Step 600
600
#BB00BB
oklch(55.6% 0.255 328.4)
-
Step 700
700
#9E009E
oklch(49.1% 0.226 328.4)
-
Step 800
800
#830082
oklch(42.7% 0.196 328.8)
-
Step 900
900
#6E006D
oklch(37.7% 0.173 328.8)
-
Step 950
950 (this color)
#511550
oklch(32.1% 0.117 328.6)
#511550 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) | #0D2A52 | 0.124 |
| Deuteranopia (no green cones) | #25324E | 0.105 |
| Tritanopia (no blue cones) | #541D30 | 0.065 |
| Achromatopsia (no color) | #2F2F2F | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511550
#511550
oklch(32.1% 0.117 328.6)
- #003F16
#003F16
oklch(32.1% 0.091 148.8)
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 #511550, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.025
- Grape Purple #5D1451 ΔE 0.027
- Deep Violet #490648 ΔE 0.033
- Eggplant Purple #430541 ΔE 0.050
- Royal Purple #4B006E ΔE 0.064
- Aubergine #3D0734 ΔE 0.071
- Rich Purple #720058 ΔE 0.073
- Eggplant #380835 ΔE 0.079
Use #511550 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.