#552A8F
Closest named color: Rebecca Purple (#663399). oklch(40% 0.158 298.5), rgb(85, 42, 143).
Aa
White text reads best on this color (9.93:1).
About this color
#552A8F 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 0.042 away. White text reads best on it, at 9.93:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.11:1 |
| White text | 9.93:1 |
Values
| HEX | #552A8F |
| RGB | rgb(85, 42, 143) |
| HSL | hsl(266, 55%, 36%) |
| OKLCH | oklch(40% 0.158 298.5) |
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 #552A8F | 9.93:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #552A8F | 2.11:1 | Fails | Lc 11.5 | Not readable |
| #552A8F text on white | 9.93:1 | AAA | Lc 92.4 | Preferred for body text |
| #552A8F text on black | 2.11:1 | Fails | Lc -10.0 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#ECE5FE
oklch(93.5% 0.034 298.5)
-
Step 200
200
#DED1FF
oklch(88.6% 0.064 298)
-
Step 300
300
#CAB1FF
oklch(81% 0.111 298.6)
-
Step 400
400
#B083FF
oklch(70.6% 0.179 298.5)
-
Step 500
500
#9F5CFF
oklch(63.2% 0.231 298.4)
-
Step 600
600
#8D30F4
oklch(55.6% 0.263 298.5)
-
Step 700
700
#781ED4
oklch(49.1% 0.244 298.5)
-
Step 800
800
#611EAB
oklch(42.6% 0.202 298.5)
-
Step 900
900 (this color)
#552A8F
oklch(40% 0.158 298.5)
-
Step 950
950
#2E164F
oklch(26.9% 0.1 298.9)
#552A8F 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) | #004392 | 0.106 |
| Deuteranopia (no green cones) | #00428D | 0.107 |
| Tritanopia (no blue cones) | #474259 | 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°).
- #552A8F
#552A8F
oklch(40% 0.158 298.5)
- #434E00
#434E00
oklch(40% 0.094 118.6)
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 #552A8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.042
- Dark Slate Blue #483D8B ΔE 0.047
- Blueberry #464196 ΔE 0.056
- Chrysanthemum #560BAD ΔE 0.059
- Imperial Purple #480CA8 ΔE 0.063
- Indigo #4B0082 ΔE 0.066
- Indigo Blue #3A18B1 ΔE 0.084
- Grape #7209B7 ΔE 0.087
Use #552A8F 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.