#552A91
Closest named color: Rebecca Purple (#663399). oklch(40.2% 0.16 297.9), rgb(85, 42, 145).
Aa
White text reads best on this color (9.87:1).
About this color
#552A91 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.160 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 9.87:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #552A91 |
| RGB | rgb(85, 42, 145) |
| HSL | hsl(265, 55%, 37%) |
| OKLCH | oklch(40.2% 0.16 297.9) |
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 #552A91 | 9.87:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #552A91 | 2.12:1 | Fails | Lc 11.7 | Not readable |
| #552A91 text on white | 9.87:1 | AAA | Lc 92.3 | Preferred for body text |
| #552A91 text on black | 2.12:1 | 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 900.
-
Step 50
50
#F6F3FF
oklch(97% 0.016 297.5)
-
Step 100
100
#ECE5FF
oklch(93.5% 0.036 298)
-
Step 200
200
#DED1FF
oklch(88.6% 0.064 298)
-
Step 300
300
#C9B1FF
oklch(80.9% 0.111 298)
-
Step 400
400
#AF84FF
oklch(70.7% 0.177 297.9)
-
Step 500
500
#9E5DFF
oklch(63.2% 0.229 297.9)
-
Step 600
600
#8C2EF6
oklch(55.5% 0.267 297.9)
-
Step 700
700
#771BD7
oklch(49.1% 0.249 297.7)
-
Step 800
800
#611DAD
oklch(42.7% 0.205 298.1)
-
Step 900
900 (this color)
#552A91
oklch(40.2% 0.16 297.9)
-
Step 950
950
#2E1650
oklch(27% 0.101 298.3)
#552A91 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) | #004394 | 0.106 |
| Deuteranopia (no green cones) | #00428F | 0.106 |
| Tritanopia (no blue cones) | #46435A | 0.122 |
| Achromatopsia (no color) | #434343 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552A91
#552A91
oklch(40.2% 0.16 297.9)
- #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 #552A91, 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 0.047
- Blueberry #464196 ΔE 0.055
- Chrysanthemum #560BAD ΔE 0.056
- Imperial Purple #480CA8 ΔE 0.061
- Indigo #4B0082 ΔE 0.067
- Indigo Blue #3A18B1 ΔE 0.081
- Grape #7209B7 ΔE 0.084
Use #552A91 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.