#552A72
Closest named color: Dark Slate Blue (#483D8B). oklch(37.8% 0.123 309.3), rgb(85, 42, 114).
Aa
White text reads best on this color (10.71:1).
About this color
#552A72 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.123 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.062 away. White text reads best on it, at 10.71:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.96:1 |
| White text | 10.71:1 |
Values
| HEX | #552A72 |
| RGB | rgb(85, 42, 114) |
| HSL | hsl(276, 46%, 31%) |
| OKLCH | oklch(37.8% 0.123 309.3) |
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 #552A72 | 10.71:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #552A72 | 1.96:1 | Fails | Lc 9.5 | Not readable |
| #552A72 text on white | 10.71:1 | AAA | Lc 94.4 | Preferred for body text |
| #552A72 text on black | 1.96:1 | Fails | Lc -8.2 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F8
oklch(93.5% 0.027 309.2)
-
Step 200
200
#E3D0F3
oklch(88.4% 0.052 309.6)
-
Step 300
300
#D2B1EE
oklch(81% 0.091 309)
-
Step 400
400
#BC85E5
oklch(70.8% 0.147 309.5)
-
Step 500
500
#AB62DE
oklch(63.1% 0.189 309.2)
-
Step 600
600
#9644CB
oklch(55.5% 0.204 309.1)
-
Step 700
700
#8034B0
oklch(49.1% 0.191 309.1)
-
Step 800
800
#682D8E
oklch(42.7% 0.157 309.2)
-
Step 900
900 (this color)
#552A72
oklch(37.8% 0.123 309.3)
-
Step 950
950
#321943
oklch(27% 0.079 309.6)
#552A72 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) | #0C3C74 | 0.107 |
| Deuteranopia (no green cones) | #213F70 | 0.095 |
| Tritanopia (no blue cones) | #51384A | 0.086 |
| Achromatopsia (no color) | #3E3E3E | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552A72
#552A72
oklch(37.8% 0.123 309.3)
- #304B00
#304B00
oklch(37.7% 0.1 129.3)
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 #552A72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.062
- Grape Purple #5D1451 ΔE 0.068
- Royal Purple #4B006E ΔE 0.070
- Indigo #4B0082 ΔE 0.071
- Rebecca Purple #663399 ΔE 0.074
- Blueberry #464196 ΔE 0.080
- Plum Purple #4E0550 ΔE 0.086
- Rich Purple #720058 ΔE 0.086
Use #552A72 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.