#511559
Closest named color: Plum Purple (#4E0550). oklch(32.7% 0.126 322.7), rgb(81, 21, 89).
Aa
White text reads best on this color (13.11:1).
About this color
#511559 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.126 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.028 away. White text reads best on it, at 13.11:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.60:1 |
| White text | 13.11:1 |
Values
| HEX | #511559 |
| RGB | rgb(81, 21, 89) |
| HSL | hsl(293, 62%, 22%) |
| OKLCH | oklch(32.7% 0.126 322.7) |
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 #511559 | 13.11:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #511559 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #511559 text on white | 13.11:1 | AAA | Lc 98.6 | Preferred for body text |
| #511559 text on black | 1.60:1 | 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 900.
-
Step 50
50
#FAF3FA
oklch(97.2% 0.012 325.7)
-
Step 100
100
#F3E4F5
oklch(93.6% 0.028 322.2)
-
Step 200
200
#EACEEE
oklch(88.4% 0.053 322)
-
Step 300
300
#DEACE4
oklch(80.8% 0.094 322.8)
-
Step 400
400
#CD7ED7
oklch(70.8% 0.151 322.9)
-
Step 500
500
#BE58CC
oklch(63.1% 0.193 322.7)
-
Step 600
600
#A938B8
oklch(55.5% 0.209 322.8)
-
Step 700
700
#91299F
oklch(49.1% 0.194 322.7)
-
Step 800
800
#762481
oklch(42.7% 0.162 322.7)
-
Step 900
900 (this color)
#511559
oklch(32.7% 0.126 322.7)
-
Step 950
950
#38163D
oklch(27% 0.081 322.4)
#511559 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) | #002C5B | 0.130 |
| Deuteranopia (no green cones) | #1F3357 | 0.111 |
| Tritanopia (no blue cones) | #522135 | 0.075 |
| Achromatopsia (no color) | #303030 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511559
#511559
oklch(32.7% 0.126 322.7)
- #004201
#004201
oklch(32.9% 0.111 142.7)
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 #511559, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.028
- Grape Purple #5D1451 ΔE 0.032
- Deep Violet #490648 ΔE 0.041
- Royal Purple #4B006E ΔE 0.049
- Eggplant Purple #430541 ΔE 0.058
- Rich Purple #720058 ΔE 0.072
- Indigo #4B0082 ΔE 0.078
- Velvet #750851 ΔE 0.081
Use #511559 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.