#511156
Closest named color: Plum Purple (#4E0550). oklch(32.1% 0.128 324.8), rgb(81, 17, 86).
Aa
White text reads best on this color (13.42:1).
About this color
#511156 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.128 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.020 away. White text reads best on it, at 13.42:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.56:1 |
| White text | 13.42:1 |
Values
| HEX | #511156 |
| RGB | rgb(81, 17, 86) |
| HSL | hsl(296, 67%, 20%) |
| OKLCH | oklch(32.1% 0.128 324.8) |
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 #511156 | 13.42:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #511156 | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #511156 text on white | 13.42:1 | AAA | Lc 99.0 | Preferred for body text |
| #511156 text on black | 1.56:1 | 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
#FDF1FD
oklch(97.1% 0.02 325.7)
-
Step 100
100
#F9E0FA
oklch(93.5% 0.044 324.8)
-
Step 200
200
#F6C7F8
oklch(88.6% 0.083 324.9)
-
Step 300
300
#F19DF6
oklch(80.9% 0.151 324.9)
-
Step 400
400
#E75BF2
oklch(70.7% 0.243 324.8)
-
Step 500
500
#D900E8
oklch(63.1% 0.295 324.8)
-
Step 600
600
#B700C4
oklch(55.5% 0.26 324.7)
-
Step 700
700
#9B00A6
oklch(49.1% 0.23 324.7)
-
Step 800
800
#800089
oklch(42.7% 0.2 324.8)
-
Step 900
900
#6B0073
oklch(37.6% 0.176 324.7)
-
Step 950
950 (this color)
#511156
oklch(32.1% 0.128 324.8)
#511156 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) | #002A58 | 0.134 |
| Deuteranopia (no green cones) | #1F3154 | 0.113 |
| Tritanopia (no blue cones) | #531D33 | 0.073 |
| Achromatopsia (no color) | #2F2F2F | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511156
#511156
oklch(32.1% 0.128 324.8)
- #00400A
#00400A
oklch(32.3% 0.102 144.7)
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 #511156, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.020
- Grape Purple #5D1451 ΔE 0.031
- Deep Violet #490648 ΔE 0.034
- Royal Purple #4B006E ΔE 0.051
- Eggplant Purple #430541 ΔE 0.052
- Rich Purple #720058 ΔE 0.073
- Aubergine #3D0734 ΔE 0.077
- Dark Purple #35063E ΔE 0.080
Use #511156 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.