#552D83
Closest named color: Dark Slate Blue (#483D8B). oklch(39.5% 0.139 301.7), rgb(85, 45, 131).
Aa
White text reads best on this color (10.05:1).
About this color
#552D83 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.139 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.043 away. White text reads best on it, at 10.05:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #552D83 |
| RGB | rgb(85, 45, 131) |
| HSL | hsl(268, 49%, 35%) |
| OKLCH | oklch(39.5% 0.139 301.7) |
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 #552D83 | 10.05:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #552D83 | 2.08:1 | Fails | Lc 11.1 | Not readable |
| #552D83 text on white | 10.05:1 | AAA | Lc 92.9 | Preferred for body text |
| #552D83 text on black | 2.08:1 | Fails | Lc -9.6 | 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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EDE6FB
oklch(93.7% 0.029 301)
-
Step 200
200
#E0D1FA
oklch(88.6% 0.058 301.9)
-
Step 300
300
#CDB1F9
oklch(81% 0.104 302)
-
Step 400
400
#B484F6
oklch(70.7% 0.167 301.7)
-
Step 500
500
#A35FF2
oklch(63.1% 0.213 301.9)
-
Step 600
600
#8F3EE1
oklch(55.6% 0.232 301.8)
-
Step 700
700
#7A2EC3
oklch(49.1% 0.215 302)
-
Step 800
800
#63299E
oklch(42.8% 0.178 301.8)
-
Step 900
900 (this color)
#552D83
oklch(39.5% 0.139 301.7)
-
Step 950
950
#2F1949
oklch(27.1% 0.087 302.1)
#552D83 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) | #004186 | 0.106 |
| Deuteranopia (no green cones) | #0E4281 | 0.102 |
| Tritanopia (no blue cones) | #4C4053 | 0.105 |
| Achromatopsia (no color) | #424242 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552D83
#552D83
oklch(39.5% 0.139 301.7)
- #3E4E00
#3E4E00
oklch(39.6% 0.096 122.1)
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 #552D83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.043
- Rebecca Purple #663399 ΔE 0.050
- Blueberry #464196 ΔE 0.058
- Indigo #4B0082 ΔE 0.069
- Chrysanthemum #560BAD ΔE 0.080
- Royal Purple #4B006E ΔE 0.082
- Imperial Purple #480CA8 ΔE 0.082
- Twilight #4E518B ΔE 0.090
Use #552D83 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.