#552B7C
Closest named color: Dark Slate Blue (#483D8B). oklch(38.7% 0.134 304.8), rgb(85, 43, 124).
Aa
White text reads best on this color (10.38:1).
About this color
#552B7C is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.134 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 0.051 away. White text reads best on it, at 10.38:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.02:1 |
| White text | 10.38:1 |
Values
| HEX | #552B7C |
| RGB | rgb(85, 43, 124) |
| HSL | hsl(271, 49%, 33%) |
| OKLCH | oklch(38.7% 0.134 304.8) |
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 #552B7C | 10.38:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #552B7C | 2.02:1 | Fails | Lc 10.3 | Not readable |
| #552B7C text on white | 10.38:1 | AAA | Lc 93.6 | Preferred for body text |
| #552B7C text on black | 2.02:1 | Fails | Lc -8.9 | 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
#CFB0F5
oklch(80.8% 0.101 304.8)
-
Step 400
400
#B884F0
oklch(70.7% 0.16 304.9)
-
Step 500
500
#A760EB
oklch(63.2% 0.205 304.8)
-
Step 600
600
#9240D9
oklch(55.6% 0.222 304.5)
-
Step 700
700
#7D30BC
oklch(49.2% 0.207 304.8)
-
Step 800
800
#652A98
oklch(42.7% 0.171 304.6)
-
Step 900
900 (this color)
#552B7C
oklch(38.7% 0.134 304.8)
-
Step 950
950
#301947
oklch(27% 0.084 304.4)
#552B7C 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) | #003F7F | 0.109 |
| Deuteranopia (no green cones) | #16407A | 0.100 |
| Tritanopia (no blue cones) | #4E3C4F | 0.097 |
| Achromatopsia (no color) | #404040 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552B7C
#552B7C
oklch(38.7% 0.134 304.8)
- #394C00
#394C00
oklch(38.6% 0.096 124.4)
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 #552B7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.051
- Rebecca Purple #663399 ΔE 0.060
- Indigo #4B0082 ΔE 0.067
- Blueberry #464196 ΔE 0.068
- Royal Purple #4B006E ΔE 0.074
- Grape Purple #5D1451 ΔE 0.083
- Chrysanthemum #560BAD ΔE 0.089
- Imperial Purple #480CA8 ΔE 0.090
Use #552B7C 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.