#511393
Closest named color: Indigo (#4B0082). oklch(37.5% 0.185 298.1), rgb(81, 19, 147).
Aa
White text reads best on this color (11.26:1).
About this color
#511393 is a dark, vivid purple. In OKLCH its lightness is 37%, its chroma 0.185 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.038 away. White text reads best on it, at 11.26:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.86:1 |
| White text | 11.26:1 |
Values
| HEX | #511393 |
| RGB | rgb(81, 19, 147) |
| HSL | hsl(269, 77%, 33%) |
| OKLCH | oklch(37.5% 0.185 298.1) |
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 #511393 | 11.26:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #511393 | 1.86:1 | Fails | Lc 9.3 | Not readable |
| #511393 text on white | 11.26:1 | AAA | Lc 94.7 | Preferred for body text |
| #511393 text on black | 1.86:1 | Fails | Lc -7.9 | 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
#F6F3FF
oklch(97% 0.016 297.5)
-
Step 100
100
#ECE5FF
oklch(93.5% 0.036 298)
-
Step 200
200
#DED1FF
oklch(88.6% 0.064 298)
-
Step 300
300
#C9B1FF
oklch(80.9% 0.111 298)
-
Step 400
400
#B084FF
oklch(70.8% 0.177 298.3)
-
Step 500
500
#9E5CFF
oklch(63.1% 0.231 298.1)
-
Step 600
600
#8F1CFF
oklch(55.6% 0.286 298.1)
-
Step 700
700
#7A00DE
oklch(49.1% 0.265 298.1)
-
Step 800
800
#6400B8
oklch(42.7% 0.23 298.1)
-
Step 900
900 (this color)
#511393
oklch(37.5% 0.185 298.1)
-
Step 950
950
#2F1056
oklch(26.9% 0.117 298.1)
#511393 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) | #003B96 | 0.115 |
| Deuteranopia (no green cones) | #003991 | 0.114 |
| Tritanopia (no blue cones) | #403A56 | 0.137 |
| Achromatopsia (no color) | #3B3B3B | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511393
#511393
oklch(37.5% 0.185 298.1)
- #3D4700
#3D4700
oklch(37.6% 0.088 118.5)
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 #511393, closest first.
No curated palette has a color within ΔE 0.04 of #511393.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.038
- Imperial Purple #480CA8 ΔE 0.042
- Chrysanthemum #560BAD ΔE 0.043
- Royal Purple #4B006E ΔE 0.070
- Indigo Blue #3A18B1 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.079
- Blueberry #464196 ΔE 0.086
Use #511393 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.