#552D9B
Closest named color: Rebecca Purple (#663399). oklch(41.4% 0.168 294.6), rgb(85, 45, 155).
Aa
White text reads best on this color (9.39:1).
About this color
#552D9B is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.168 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.037 away. White text reads best on it, at 9.39:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #552D9B |
| RGB | rgb(85, 45, 155) |
| HSL | hsl(262, 55%, 39%) |
| OKLCH | oklch(41.4% 0.168 294.6) |
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 #552D9B | 9.39:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #552D9B | 2.23:1 | Fails | Lc 12.9 | Not readable |
| #552D9B text on white | 9.39:1 | AAA | Lc 91.1 | Preferred for body text |
| #552D9B text on black | 2.23:1 | Fails | Lc -11.3 | 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
#EBE7FC
oklch(93.7% 0.028 294.6)
-
Step 200
200
#DBD3FA
oklch(88.6% 0.054 294.7)
-
Step 300
300
#C4B4FA
oklch(80.8% 0.099 294.6)
-
Step 400
400
#A88AF7
oklch(70.6% 0.157 294.7)
-
Step 500
500
#9468F4
oklch(63% 0.201 294.4)
-
Step 600
600
#804AE3
oklch(55.6% 0.219 294.4)
-
Step 700
700
#6D3AC5
oklch(49.2% 0.203 294.5)
-
Step 800
800 (this color)
#552D9B
oklch(41.4% 0.168 294.6)
-
Step 900
900
#482D7E
oklch(37.6% 0.131 294.6)
-
Step 950
950
#2A1C4A
oklch(27.1% 0.082 294.3)
#552D9B 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) | #00479E | 0.102 |
| Deuteranopia (no green cones) | #004499 | 0.101 |
| Tritanopia (no blue cones) | #414860 | 0.131 |
| Achromatopsia (no color) | #464646 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552D9B
#552D9B
oklch(41.4% 0.168 294.6)
- #4B5100
#4B5100
oklch(41.5% 0.094 114.6)
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 #552D9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.037
- Dark Slate Blue #483D8B ΔE 0.048
- Chrysanthemum #560BAD ΔE 0.048
- Blueberry #464196 ΔE 0.049
- Imperial Purple #480CA8 ΔE 0.056
- Indigo Blue #3A18B1 ΔE 0.073
- Grape #7209B7 ΔE 0.076
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
Use #552D9B 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.