#552D66
Closest named color: Grape Purple (#5D1451). oklch(37.5% 0.103 314.9), rgb(85, 45, 102).
Aa
White text reads best on this color (10.75:1).
About this color
#552D66 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.103 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.058 away. White text reads best on it, at 10.75:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.103) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.95:1 |
| White text | 10.75:1 |
Values
| HEX | #552D66 |
| RGB | rgb(85, 45, 102) |
| HSL | hsl(282, 39%, 29%) |
| OKLCH | oklch(37.5% 0.103 314.9) |
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 #552D66 | 10.75:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #552D66 | 1.95:1 | Fails | Lc 9.3 | Not readable |
| #552D66 text on white | 10.75:1 | AAA | Lc 94.6 | Preferred for body text |
| #552D66 text on black | 1.95:1 | Fails | Lc -8.0 | 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
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E6F4
oklch(93.7% 0.021 316.5)
-
Step 200
200
#E4D1ED
oklch(88.5% 0.043 315)
-
Step 300
300
#D4B2E4
oklch(80.9% 0.078 314.9)
-
Step 400
400
#BD88D6
oklch(70.7% 0.124 314.5)
-
Step 500
500
#AD68CA
oklch(63.1% 0.158 315.1)
-
Step 600
600
#984DB7
oklch(55.7% 0.171 314.9)
-
Step 700
700
#823D9E
oklch(49.2% 0.16 315)
-
Step 800
800
#693380
oklch(42.7% 0.133 314.6)
-
Step 900
900 (this color)
#552D66
oklch(37.5% 0.103 314.9)
-
Step 950
950
#321B3C
oklch(26.9% 0.066 314.9)
#552D66 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) | #203B68 | 0.090 |
| Deuteranopia (no green cones) | #2C3F65 | 0.081 |
| Tritanopia (no blue cones) | #543645 | 0.068 |
| Achromatopsia (no color) | #3E3E3E | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552D66
#552D66
oklch(37.5% 0.103 314.9)
- #274C07
#274C07
oklch(37.4% 0.103 134.7)
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 #552D66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.072
- Royal Purple #4B006E ΔE 0.081
- Plum Purple #4E0550 ΔE 0.082
- Rich Purple #720058 ΔE 0.082
- Velvet #750851 ΔE 0.085
- Indigo #4B0082 ΔE 0.090
- Rebecca Purple #663399 ΔE 0.091
Use #552D66 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.