#51165E
Closest named color: Plum Purple (#4E0550). oklch(33.2% 0.129 319.7), rgb(81, 22, 94).
Aa
White text reads best on this color (12.91:1).
About this color
#51165E is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.129 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.034 away. White text reads best on it, at 12.91:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.62:1 |
| White text | 12.91:1 |
Values
| HEX | #51165E |
| RGB | rgb(81, 22, 94) |
| HSL | hsl(289, 62%, 23%) |
| OKLCH | oklch(33.2% 0.129 319.7) |
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 #51165E | 12.91:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #51165E | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #51165E text on white | 12.91:1 | AAA | Lc 98.3 | Preferred for body text |
| #51165E text on black | 1.62:1 | 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
#F9F3FB
oklch(97.1% 0.012 317.7)
-
Step 100
100
#F2E4F6
oklch(93.5% 0.028 318.7)
-
Step 200
200
#E9CEF0
oklch(88.4% 0.054 319.3)
-
Step 300
300
#DDADE8
oklch(81% 0.096 320)
-
Step 400
400
#CA7EDC
oklch(70.7% 0.154 319.8)
-
Step 500
500
#BB58D2
oklch(63% 0.198 319.7)
-
Step 600
600
#A737BF
oklch(55.6% 0.215 319.9)
-
Step 700
700
#8F28A5
oklch(49.1% 0.2 319.8)
-
Step 800
800
#742486
oklch(42.7% 0.165 319.6)
-
Step 900
900 (this color)
#51165E
oklch(33.2% 0.129 319.7)
-
Step 950
950
#37163F
oklch(27% 0.082 319.4)
#51165E 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) | #002E60 | 0.128 |
| Deuteranopia (no green cones) | #1C345C | 0.112 |
| Tritanopia (no blue cones) | #512438 | 0.080 |
| Achromatopsia (no color) | #323232 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51165E
#51165E
oklch(33.2% 0.129 319.7)
- #104200
#104200
oklch(33.3% 0.106 139.6)
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 #51165E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.034
- Grape Purple #5D1451 ΔE 0.037
- Royal Purple #4B006E ΔE 0.043
- Deep Violet #490648 ΔE 0.048
- Eggplant Purple #430541 ΔE 0.065
- Indigo #4B0082 ΔE 0.070
- Rich Purple #720058 ΔE 0.074
- Velvet #750851 ΔE 0.083
Use #51165E 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.