#551D58
Closest named color: Grape Purple (#5D1451). oklch(34.2% 0.115 325.7), rgb(85, 29, 88).
Aa
White text reads best on this color (12.33:1).
About this color
#551D58 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.115 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.024 away. White text reads best on it, at 12.33:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.70:1 |
| White text | 12.33:1 |
Values
| HEX | #551D58 |
| RGB | rgb(85, 29, 88) |
| HSL | hsl(297, 50%, 23%) |
| OKLCH | oklch(34.2% 0.115 325.7) |
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 #551D58 | 12.33:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #551D58 | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #551D58 text on white | 12.33:1 | AAA | Lc 97.5 | Preferred for body text |
| #551D58 text on black | 1.70:1 | 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
#F3E4F3
oklch(93.5% 0.026 325.8)
-
Step 200
200
#EACFEB
oklch(88.5% 0.048 324.9)
-
Step 300
300
#DEAEDF
oklch(81% 0.086 325.7)
-
Step 400
400
#CC80CF
oklch(70.6% 0.139 325.6)
-
Step 500
500
#BE5DC2
oklch(63.2% 0.176 325.9)
-
Step 600
600
#A93FAE
oklch(55.7% 0.191 325.9)
-
Step 700
700
#912F96
oklch(49.1% 0.18 325.8)
-
Step 800
800
#75297A
oklch(42.7% 0.148 325.2)
-
Step 900
900 (this color)
#551D58
oklch(34.2% 0.115 325.7)
-
Step 950
950
#381839
oklch(27.1% 0.072 326.2)
#551D58 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) | #14305A | 0.117 |
| Deuteranopia (no green cones) | #293756 | 0.101 |
| Tritanopia (no blue cones) | #572537 | 0.067 |
| Achromatopsia (no color) | #353535 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551D58
#551D58
oklch(34.2% 0.115 325.7)
- #004610
#004610
oklch(34.3% 0.106 145.7)
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 #551D58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.024
- Plum Purple #4E0550 ΔE 0.044
- Deep Violet #490648 ΔE 0.055
- Royal Purple #4B006E ΔE 0.064
- Rich Purple #720058 ΔE 0.065
- Velvet #750851 ΔE 0.071
- Eggplant Purple #430541 ΔE 0.071
- Merlot #730039 ΔE 0.085
Use #551D58 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.