#551D4F
Closest named color: Grape Purple (#5D1451). oklch(33.7% 0.107 332.1), rgb(85, 29, 79).
Aa
White text reads best on this color (12.53:1).
About this color
#551D4F is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.107 and its hue 332°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.022 away. White text reads best on it, at 12.53:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.67:1 |
| White text | 12.53:1 |
Values
| HEX | #551D4F |
| RGB | rgb(85, 29, 79) |
| HSL | hsl(306, 49%, 22%) |
| OKLCH | oklch(33.7% 0.107 332.1) |
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 #551D4F | 12.53:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #551D4F | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #551D4F text on white | 12.53:1 | AAA | Lc 97.9 | Preferred for body text |
| #551D4F text on black | 1.67:1 | 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
#FAF3F9
oklch(97.1% 0.011 330.1)
-
Step 100
100
#F4E4F1
oklch(93.5% 0.024 331.9)
-
Step 200
200
#ECCFE6
oklch(88.5% 0.044 333)
-
Step 300
300
#E0AED8
oklch(80.9% 0.08 331.8)
-
Step 400
400
#CF81C4
oklch(70.7% 0.129 332.1)
-
Step 500
500
#C15FB5
oklch(63.2% 0.164 332.1)
-
Step 600
600
#AC42A0
oklch(55.7% 0.177 332.4)
-
Step 700
700
#933289
oklch(49% 0.166 332.1)
-
Step 800
800
#782B6F
oklch(42.7% 0.137 332.6)
-
Step 900
900 (this color)
#551D4F
oklch(33.7% 0.107 332.1)
-
Step 950
950
#391835
oklch(27% 0.068 332)
#551D4F 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) | #1B2E51 | 0.111 |
| Deuteranopia (no green cones) | #2D364E | 0.096 |
| Tritanopia (no blue cones) | #592233 | 0.056 |
| Achromatopsia (no color) | #343434 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551D4F
#551D4F
oklch(33.7% 0.107 332.1)
- #00431F
#00431F
oklch(33.5% 0.087 152.5)
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 #551D4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.022
- Plum Purple #4E0550 ΔE 0.045
- Deep Violet #490648 ΔE 0.052
- Eggplant Purple #430541 ΔE 0.066
- Rich Purple #720058 ΔE 0.067
- Velvet #750851 ΔE 0.069
- Merlot #730039 ΔE 0.076
- Royal Purple #4B006E ΔE 0.077
Use #551D4F 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.