#552A87
Closest named color: Dark Slate Blue (#483D8B). oklch(39.4% 0.148 301), rgb(85, 42, 135).
Aa
White text reads best on this color (10.15:1).
About this color
#552A87 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.148 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.047 away. White text reads best on it, at 10.15:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #552A87 |
| RGB | rgb(85, 42, 135) |
| HSL | hsl(268, 53%, 35%) |
| OKLCH | oklch(39.4% 0.148 301) |
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 #552A87 | 10.15:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #552A87 | 2.06:1 | Fails | Lc 10.9 | Not readable |
| #552A87 text on white | 10.15:1 | AAA | Lc 93.0 | Preferred for body text |
| #552A87 text on black | 2.06:1 | Fails | Lc -9.5 | 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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EDE5FD
oklch(93.5% 0.033 300.9)
-
Step 200
200
#E0D0FC
oklch(88.5% 0.062 301.7)
-
Step 300
300
#CDB0FD
oklch(80.9% 0.111 301.3)
-
Step 400
400
#B482FC
oklch(70.7% 0.177 300.9)
-
Step 500
500
#A35BFA
oklch(63.1% 0.227 300.9)
-
Step 600
600
#8F37E9
oklch(55.6% 0.247 300.8)
-
Step 700
700
#7A26CA
oklch(49% 0.229 301)
-
Step 800
800
#6323A4
oklch(42.7% 0.191 300.8)
-
Step 900
900 (this color)
#552A87
oklch(39.4% 0.148 301)
-
Step 950
950
#2F174C
oklch(27% 0.094 301.1)
#552A87 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) | #00418A | 0.108 |
| Deuteranopia (no green cones) | #004185 | 0.109 |
| Tritanopia (no blue cones) | #4A3F55 | 0.109 |
| Achromatopsia (no color) | #414141 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552A87
#552A87
oklch(39.4% 0.148 301)
- #3F4D00
#3F4D00
oklch(39.4% 0.094 120.9)
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 #552A87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.047
- Rebecca Purple #663399 ΔE 0.049
- Blueberry #464196 ΔE 0.060
- Indigo #4B0082 ΔE 0.063
- Chrysanthemum #560BAD ΔE 0.071
- Imperial Purple #480CA8 ΔE 0.073
- Royal Purple #4B006E ΔE 0.079
- Indigo Blue #3A18B1 ΔE 0.094
Use #552A87 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.