#552D89
Closest named color: Dark Slate Blue (#483D8B). oklch(39.9% 0.146 299.7), rgb(85, 45, 137).
Aa
White text reads best on this color (9.89:1).
About this color
#552D89 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.146 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.041 away. White text reads best on it, at 9.89:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.12:1 |
| White text | 9.89:1 |
Values
| HEX | #552D89 |
| RGB | rgb(85, 45, 137) |
| HSL | hsl(266, 51%, 36%) |
| OKLCH | oklch(39.9% 0.146 299.7) |
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 #552D89 | 9.89:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #552D89 | 2.12:1 | Fails | Lc 11.5 | Not readable |
| #552D89 text on white | 9.89:1 | AAA | Lc 92.4 | Preferred for body text |
| #552D89 text on black | 2.12:1 | 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
#F7F3FE
oklch(97% 0.015 302.6)
-
Step 100
100
#EDE6FD
oklch(93.7% 0.032 299.7)
-
Step 200
200
#DFD1FC
oklch(88.6% 0.06 300)
-
Step 300
300
#CBB1FD
oklch(81% 0.109 299.7)
-
Step 400
400
#B283FD
oklch(70.7% 0.176 299.7)
-
Step 500
500
#A05DFA
oklch(63.1% 0.224 299.5)
-
Step 600
600
#8D3AE9
oklch(55.6% 0.244 299.9)
-
Step 700
700
#7829CB
oklch(49.1% 0.227 299.7)
-
Step 800
800
#6126A4
oklch(42.7% 0.188 299.5)
-
Step 900
900 (this color)
#552D89
oklch(39.9% 0.146 299.7)
-
Step 950
950
#2E184C
oklch(27% 0.092 299.7)
#552D89 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) | #00438C | 0.105 |
| Deuteranopia (no green cones) | #004287 | 0.106 |
| Tritanopia (no blue cones) | #494257 | 0.111 |
| Achromatopsia (no color) | #434343 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552D89
#552D89
oklch(39.9% 0.146 299.7)
- #424E00
#424E00
oklch(39.9% 0.094 119.3)
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 #552D89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.041
- Rebecca Purple #663399 ΔE 0.044
- Blueberry #464196 ΔE 0.054
- Indigo #4B0082 ΔE 0.069
- Chrysanthemum #560BAD ΔE 0.071
- Imperial Purple #480CA8 ΔE 0.074
- Royal Purple #4B006E ΔE 0.086
- Twilight #4E518B ΔE 0.090
Use #552D89 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.