#550D53
Closest named color: Plum Purple (#4E0550). oklch(32.3% 0.132 329.4), rgb(85, 13, 83).
Aa
White text reads best on this color (13.38:1).
About this color
#550D53 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.132 and its hue 329°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.021 away. White text reads best on it, at 13.38:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.56:1 |
| White text | 13.38:1 |
Values
| HEX | #550D53 |
| RGB | rgb(85, 13, 83) |
| HSL | hsl(302, 73%, 19%) |
| OKLCH | oklch(32.3% 0.132 329.4) |
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 #550D53 | 13.38:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #550D53 | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #550D53 text on white | 13.38:1 | AAA | Lc 98.8 | Preferred for body text |
| #550D53 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
#FEF1FC
oklch(97.1% 0.02 330.6)
-
Step 100
100
#FCE0F9
oklch(93.7% 0.045 329.4)
-
Step 200
200
#FAC5F5
oklch(88.5% 0.086 329.4)
-
Step 300
300
#F89AF1
oklch(81% 0.156 329.6)
-
Step 400
400
#EF54EA
oklch(70.7% 0.249 329.2)
-
Step 500
500
#DF00DB
oklch(63.2% 0.289 329.3)
-
Step 600
600
#BC00B9
oklch(55.6% 0.254 329.2)
-
Step 700
700
#9F009C
oklch(49.1% 0.225 329.4)
-
Step 800
800
#830081
oklch(42.7% 0.195 329.2)
-
Step 900
900
#6E006C
oklch(37.6% 0.172 329.3)
-
Step 950
950 (this color)
#550D53
oklch(32.3% 0.132 329.4)
#550D53 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) | #012955 | 0.144 |
| Deuteranopia (no green cones) | #233251 | 0.120 |
| Tritanopia (no blue cones) | #581830 | 0.071 |
| Achromatopsia (no color) | #2F2F2F | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #550D53
#550D53
oklch(32.3% 0.132 329.4)
- #003F17
#003F17
oklch(32.1% 0.09 149.3)
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 #550D53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.021
- Grape Purple #5D1451 ΔE 0.024
- Deep Violet #490648 ΔE 0.035
- Eggplant Purple #430541 ΔE 0.053
- Royal Purple #4B006E ΔE 0.058
- Rich Purple #720058 ΔE 0.064
- Velvet #750851 ΔE 0.073
- Aubergine #3D0734 ΔE 0.078
Use #550D53 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.