#552C7B
Closest named color: Dark Slate Blue (#483D8B). oklch(38.7% 0.131 304.9), rgb(85, 44, 123).
Aa
White text reads best on this color (10.33:1).
About this color
#552C7B is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.131 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.050 away. White text reads best on it, at 10.33:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.03:1 |
| White text | 10.33:1 |
Values
| HEX | #552C7B |
| RGB | rgb(85, 44, 123) |
| HSL | hsl(271, 47%, 33%) |
| OKLCH | oklch(38.7% 0.131 304.9) |
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 #552C7B | 10.33:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #552C7B | 2.03:1 | Fails | Lc 10.4 | Not readable |
| #552C7B text on white | 10.33:1 | AAA | Lc 93.5 | Preferred for body text |
| #552C7B text on black | 2.03:1 | Fails | Lc -9.0 | 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
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE5FA
oklch(93.5% 0.03 305.1)
-
Step 200
200
#E1D1F7
oklch(88.6% 0.054 304.4)
-
Step 300
300
#CFB1F4
oklch(80.9% 0.098 304.8)
-
Step 400
400
#B785EE
oklch(70.7% 0.156 304.7)
-
Step 500
500
#A661E8
oklch(63.1% 0.2 304.9)
-
Step 600
600
#9242D6
oklch(55.6% 0.217 305)
-
Step 700
700
#7C32BA
oklch(49.1% 0.202 304.7)
-
Step 800
800
#652B96
oklch(42.6% 0.167 305.1)
-
Step 900
900 (this color)
#552C7B
oklch(38.7% 0.131 304.9)
-
Step 950
950
#301946
oklch(27% 0.083 305.1)
#552C7B 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) | #003F7D | 0.109 |
| Deuteranopia (no green cones) | #194079 | 0.097 |
| Tritanopia (no blue cones) | #4E3C4F | 0.095 |
| Achromatopsia (no color) | #404040 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552C7B
#552C7B
oklch(38.7% 0.131 304.9)
- #394D00
#394D00
oklch(38.9% 0.098 124.9)
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 #552C7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Rebecca Purple #663399 ΔE 0.061
- Blueberry #464196 ΔE 0.068
- Indigo #4B0082 ΔE 0.069
- Royal Purple #4B006E ΔE 0.076
- Grape Purple #5D1451 ΔE 0.082
- Chrysanthemum #560BAD ΔE 0.091
- Imperial Purple #480CA8 ΔE 0.092
Use #552C7B 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.