#552E7B
Closest named color: Dark Slate Blue (#483D8B). oklch(39% 0.128 304.5), rgb(85, 46, 123).
Aa
White text reads best on this color (10.17:1).
About this color
#552E7B is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.128 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.047 away. White text reads best on it, at 10.17:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.06:1 |
| White text | 10.17:1 |
Values
| HEX | #552E7B |
| RGB | rgb(85, 46, 123) |
| HSL | hsl(270, 46%, 33%) |
| OKLCH | oklch(39% 0.128 304.5) |
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 #552E7B | 10.17:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #552E7B | 2.06:1 | Fails | Lc 10.7 | Not readable |
| #552E7B text on white | 10.17:1 | AAA | Lc 93.2 | Preferred for body text |
| #552E7B text on black | 2.06:1 | Fails | Lc -9.3 | 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 900.
-
Step 50
50
#F7F3FD
oklch(97% 0.014 304.1)
-
Step 100
100
#EEE6F9
oklch(93.7% 0.027 304.8)
-
Step 200
200
#E1D1F6
oklch(88.5% 0.053 304.9)
-
Step 300
300
#CEB1F3
oklch(80.8% 0.096 304.4)
-
Step 400
400
#B686ED
oklch(70.7% 0.153 304.3)
-
Step 500
500
#A563E7
oklch(63.2% 0.195 304.5)
-
Step 600
600
#9044D5
oklch(55.5% 0.213 304.3)
-
Step 700
700
#7B34B8
oklch(49% 0.198 304.6)
-
Step 800
800
#642D95
oklch(42.7% 0.163 304.5)
-
Step 900
900 (this color)
#552E7B
oklch(39% 0.128 304.5)
-
Step 950
950
#301A46
oklch(27.1% 0.081 304.7)
#552E7B 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) | #07407D | 0.104 |
| Deuteranopia (no green cones) | #1C4179 | 0.093 |
| Tritanopia (no blue cones) | #4E3E50 | 0.094 |
| Achromatopsia (no color) | #414141 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552E7B
#552E7B
oklch(39% 0.128 304.5)
- #3A4D00
#3A4D00
oklch(39% 0.097 124.2)
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 #552E7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.047
- Rebecca Purple #663399 ΔE 0.060
- Blueberry #464196 ΔE 0.065
- Indigo #4B0082 ΔE 0.073
- Royal Purple #4B006E ΔE 0.080
- Grape Purple #5D1451 ΔE 0.084
- Twilight #4E518B ΔE 0.090
- Chrysanthemum #560BAD ΔE 0.093
Use #552E7B 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.