#511455
Closest named color: Plum Purple (#4E0550). oklch(32.4% 0.123 325.3), rgb(81, 20, 85).
Aa
White text reads best on this color (13.28:1).
About this color
#511455 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.123 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 0.024 away. White text reads best on it, at 13.28:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.58:1 |
| White text | 13.28:1 |
Values
| HEX | #511455 |
| RGB | rgb(81, 20, 85) |
| HSL | hsl(296, 62%, 21%) |
| OKLCH | oklch(32.4% 0.123 325.3) |
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 #511455 | 13.28:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #511455 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #511455 text on white | 13.28:1 | AAA | Lc 98.9 | Preferred for body text |
| #511455 text on black | 1.58:1 | 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
#F4E4F4
oklch(93.6% 0.027 325.8)
-
Step 200
200
#EBCEEC
oklch(88.5% 0.051 325)
-
Step 300
300
#E0ACE1
oklch(80.9% 0.093 325.8)
-
Step 400
400
#CE7ED2
oklch(70.7% 0.147 325.3)
-
Step 500
500
#C058C6
oklch(63% 0.189 325.4)
-
Step 600
600
#AB38B3
oklch(55.5% 0.206 325.1)
-
Step 700
700
#93299A
oklch(49.1% 0.191 325.3)
-
Step 800
800
#77247D
oklch(42.6% 0.159 325)
-
Step 900
900 (this color)
#511455
oklch(32.4% 0.123 325.3)
-
Step 950
950
#39163B
oklch(27% 0.079 325.4)
#511455 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) | #042B57 | 0.130 |
| Deuteranopia (no green cones) | #213253 | 0.110 |
| Tritanopia (no blue cones) | #531F33 | 0.071 |
| Achromatopsia (no color) | #303030 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511455
#511455
oklch(32.4% 0.123 325.3)
- #00400C
#00400C
oklch(32.3% 0.101 145.2)
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 #511455, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.024
- Grape Purple #5D1451 ΔE 0.029
- Deep Violet #490648 ΔE 0.036
- Eggplant Purple #430541 ΔE 0.053
- Royal Purple #4B006E ΔE 0.055
- Rich Purple #720058 ΔE 0.072
- Aubergine #3D0734 ΔE 0.077
- Velvet #750851 ΔE 0.080
Use #511455 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.