#552D9E
Closest named color: Rebecca Purple (#663399). oklch(41.7% 0.172 293.8), rgb(85, 45, 158).
Aa
White text reads best on this color (9.31:1).
About this color
#552D9E is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.172 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.038 away. White text reads best on it, at 9.31:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.25:1 |
| White text | 9.31:1 |
Values
| HEX | #552D9E |
| RGB | rgb(85, 45, 158) |
| HSL | hsl(261, 56%, 40%) |
| OKLCH | oklch(41.7% 0.172 293.8) |
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 #552D9E | 9.31:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #552D9E | 2.25:1 | Fails | Lc 13.2 | Not readable |
| #552D9E text on white | 9.31:1 | AAA | Lc 90.8 | Preferred for body text |
| #552D9E text on black | 2.25:1 | Fails | Lc -11.5 | 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 800.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EAE7FC
oklch(93.7% 0.028 292.4)
-
Step 200
200
#DAD3FB
oklch(88.5% 0.055 293.3)
-
Step 300
300
#C4B4FC
oklch(80.9% 0.101 294.2)
-
Step 400
400
#A78AFA
oklch(70.7% 0.161 293.8)
-
Step 500
500
#9368F7
oklch(63.2% 0.205 293.5)
-
Step 600
600
#7F49E6
oklch(55.6% 0.223 293.6)
-
Step 700
700
#6C38C8
oklch(49.1% 0.208 293.8)
-
Step 800
800 (this color)
#552D9E
oklch(41.7% 0.172 293.8)
-
Step 900
900
#482D80
oklch(37.8% 0.133 294)
-
Step 950
950
#2A1B4B
oklch(27% 0.085 294.4)
#552D9E 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) | #0048A1 | 0.102 |
| Deuteranopia (no green cones) | #00459C | 0.101 |
| Tritanopia (no blue cones) | #404A62 | 0.135 |
| Achromatopsia (no color) | #474747 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552D9E
#552D9E
oklch(41.7% 0.172 293.8)
- #4C5100
#4C5100
oklch(41.6% 0.093 113.8)
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 #552D9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.038
- Chrysanthemum #560BAD ΔE 0.046
- Blueberry #464196 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.051
- Imperial Purple #480CA8 ΔE 0.054
- Indigo Blue #3A18B1 ΔE 0.070
- Blue With A Hint Of Purple #533CC6 ΔE 0.072
- Grape #7209B7 ΔE 0.073
Use #552D9E 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.