#551255
Closest named color: Grape Purple (#5D1451). oklch(32.8% 0.128 328), rgb(85, 18, 85).
Aa
White text reads best on this color (13.09:1).
About this color
#551255 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.128 and its hue 328°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.021 away. White text reads best on it, at 13.09:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.60:1 |
| White text | 13.09:1 |
Values
| HEX | #551255 |
| RGB | rgb(85, 18, 85) |
| HSL | hsl(300, 65%, 20%) |
| OKLCH | oklch(32.8% 0.128 328) |
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 #551255 | 13.09:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #551255 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #551255 text on white | 13.09:1 | AAA | Lc 98.5 | Preferred for body text |
| #551255 text on black | 1.60:1 | 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
#F5E4F3
oklch(93.7% 0.027 329.5)
-
Step 200
200
#EDCDEB
oklch(88.4% 0.053 328)
-
Step 300
300
#E3ABE0
oklch(81% 0.095 328.2)
-
Step 400
400
#D37BD0
oklch(70.7% 0.153 328.3)
-
Step 500
500
#C554C4
oklch(63.1% 0.196 327.9)
-
Step 600
600
#B032B0
oklch(55.5% 0.213 328)
-
Step 700
700
#972298
oklch(49% 0.199 327.7)
-
Step 800
800
#7B207B
oklch(42.7% 0.164 328)
-
Step 900
900 (this color)
#551255
oklch(32.8% 0.128 328)
-
Step 950
950
#3A153A
oklch(26.9% 0.08 327.5)
#551255 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) | #052B57 | 0.137 |
| Deuteranopia (no green cones) | #243453 | 0.116 |
| Tritanopia (no blue cones) | #581C32 | 0.071 |
| Achromatopsia (no color) | #313131 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551255
#551255
oklch(32.8% 0.128 328)
- #004115
#004115
oklch(32.7% 0.095 148)
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 #551255, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.021
- Plum Purple #4E0550 ΔE 0.026
- Deep Violet #490648 ΔE 0.040
- Royal Purple #4B006E ΔE 0.058
- Eggplant Purple #430541 ΔE 0.058
- Rich Purple #720058 ΔE 0.063
- Velvet #750851 ΔE 0.072
- Aubergine #3D0734 ΔE 0.082
Use #551255 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.