#552B7A
Closest named color: Dark Slate Blue (#483D8B). oklch(38.5% 0.131 305.6), rgb(85, 43, 122).
Aa
White text reads best on this color (10.43:1).
About this color
#552B7A is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.131 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.053 away. White text reads best on it, at 10.43:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.01:1 |
| White text | 10.43:1 |
Values
| HEX | #552B7A |
| RGB | rgb(85, 43, 122) |
| HSL | hsl(272, 48%, 32%) |
| OKLCH | oklch(38.5% 0.131 305.6) |
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 #552B7A | 10.43:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #552B7A | 2.01:1 | Fails | Lc 10.2 | Not readable |
| #552B7A text on white | 10.43:1 | AAA | Lc 93.8 | Preferred for body text |
| #552B7A text on black | 2.01:1 | Fails | Lc -8.8 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE5FA
oklch(93.5% 0.03 305.1)
-
Step 200
200
#E2D1F7
oklch(88.6% 0.055 305.5)
-
Step 300
300
#D0B1F4
oklch(81% 0.098 305.4)
-
Step 400
400
#B884EE
oklch(70.6% 0.158 305.4)
-
Step 500
500
#A760E8
oklch(63% 0.201 305.4)
-
Step 600
600
#9341D6
oklch(55.6% 0.218 305.5)
-
Step 700
700
#7D31B9
oklch(49% 0.203 305.5)
-
Step 800
800
#662B96
oklch(42.8% 0.168 305.6)
-
Step 900
900 (this color)
#552B7A
oklch(38.5% 0.131 305.6)
-
Step 950
950
#301946
oklch(27% 0.083 305.1)
#552B7A 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) | #003E7C | 0.110 |
| Deuteranopia (no green cones) | #194078 | 0.099 |
| Tritanopia (no blue cones) | #4F3B4E | 0.094 |
| Achromatopsia (no color) | #404040 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552B7A
#552B7A
oklch(38.5% 0.131 305.6)
- #374C00
#374C00
oklch(38.5% 0.097 125.6)
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 #552B7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.053
- Rebecca Purple #663399 ΔE 0.063
- Indigo #4B0082 ΔE 0.068
- Blueberry #464196 ΔE 0.070
- Royal Purple #4B006E ΔE 0.073
- Grape Purple #5D1451 ΔE 0.080
- Chrysanthemum #560BAD ΔE 0.092
- Imperial Purple #480CA8 ΔE 0.093
Use #552B7A 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.