#552B90
Closest named color: Rebecca Purple (#663399). oklch(40.2% 0.158 298), rgb(85, 43, 144).
Aa
White text reads best on this color (9.83:1).
About this color
#552B90 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.158 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.041 away. White text reads best on it, at 9.83:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.13:1 |
| White text | 9.83:1 |
Values
| HEX | #552B90 |
| RGB | rgb(85, 43, 144) |
| HSL | hsl(265, 54%, 37%) |
| OKLCH | oklch(40.2% 0.158 298) |
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 #552B90 | 9.83:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #552B90 | 2.13:1 | Fails | Lc 11.7 | Not readable |
| #552B90 text on white | 9.83:1 | AAA | Lc 92.2 | Preferred for body text |
| #552B90 text on black | 2.13:1 | Fails | Lc -10.2 | 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 800.
-
Step 50
50
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6FA
oklch(93.6% 0.027 299.5)
-
Step 200
200
#DDD3F7
oklch(88.6% 0.05 298.1)
-
Step 300
300
#C7B4F5
oklch(80.8% 0.092 297.7)
-
Step 400
400
#AC8AF0
oklch(70.6% 0.148 297.9)
-
Step 500
500
#9969EA
oklch(63% 0.188 298)
-
Step 600
600
#854CD9
oklch(55.6% 0.205 297.9)
-
Step 700
700
#713CBC
oklch(49.2% 0.19 298)
-
Step 800
800 (this color)
#552B90
oklch(40.2% 0.158 298)
-
Step 900
900
#4B2E79
oklch(37.7% 0.123 298.1)
-
Step 950
950
#2C1C47
oklch(27.1% 0.078 298.2)
#552B90 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) | #004493 | 0.106 |
| Deuteranopia (no green cones) | #00428E | 0.106 |
| Tritanopia (no blue cones) | #47435A | 0.119 |
| Achromatopsia (no color) | #434343 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552B90
#552B90
oklch(40.2% 0.158 298)
- #444E00
#444E00
oklch(40.1% 0.093 117.8)
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 #552B90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.041
- Dark Slate Blue #483D8B ΔE 0.045
- Blueberry #464196 ΔE 0.054
- Chrysanthemum #560BAD ΔE 0.059
- Imperial Purple #480CA8 ΔE 0.063
- Indigo #4B0082 ΔE 0.068
- Indigo Blue #3A18B1 ΔE 0.083
- Grape #7209B7 ΔE 0.086
Use #552B90 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.