#552E72
Closest named color: Dark Slate Blue (#483D8B). oklch(38.4% 0.116 308.4), rgb(85, 46, 114).
Aa
White text reads best on this color (10.39:1).
About this color
#552E72 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.116 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.056 away. White text reads best on it, at 10.39:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.02:1 |
| White text | 10.39:1 |
Values
| HEX | #552E72 |
| RGB | rgb(85, 46, 114) |
| HSL | hsl(274, 43%, 31%) |
| OKLCH | oklch(38.4% 0.116 308.4) |
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 #552E72 | 10.39:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #552E72 | 2.02:1 | Fails | Lc 10.1 | Not readable |
| #552E72 text on white | 10.39:1 | AAA | Lc 93.8 | Preferred for body text |
| #552E72 text on black | 2.02:1 | Fails | Lc -8.7 | 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
#EFE6F7
oklch(93.7% 0.025 309.4)
-
Step 200
200
#E2D1F2
oklch(88.5% 0.048 308.5)
-
Step 300
300
#D1B2EC
oklch(81% 0.087 308.8)
-
Step 400
400
#B987E3
oklch(70.7% 0.14 308.2)
-
Step 500
500
#A865DA
oklch(63% 0.179 308.6)
-
Step 600
600
#9349C8
oklch(55.6% 0.194 308.1)
-
Step 700
700
#7E39AD
oklch(49.2% 0.181 308.5)
-
Step 800
800
#66308C
oklch(42.7% 0.15 308.3)
-
Step 900
900 (this color)
#552E72
oklch(38.4% 0.116 308.4)
-
Step 950
950
#311B42
oklch(27.2% 0.074 308.3)
#552E72 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) | #163E74 | 0.097 |
| Deuteranopia (no green cones) | #254070 | 0.087 |
| Tritanopia (no blue cones) | #513B4B | 0.083 |
| Achromatopsia (no color) | #404040 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552E72
#552E72
oklch(38.4% 0.116 308.4)
- #334D00
#334D00
oklch(38.4% 0.101 128.4)
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 #552E72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.056
- Grape Purple #5D1451 ΔE 0.072
- Rebecca Purple #663399 ΔE 0.072
- Blueberry #464196 ΔE 0.075
- Indigo #4B0082 ΔE 0.079
- Royal Purple #4B006E ΔE 0.079
- Rich Purple #720058 ΔE 0.090
- Plum Purple #4E0550 ΔE 0.093
Use #552E72 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.