#552881
Closest named color: Dark Slate Blue (#483D8B). oklch(38.6% 0.144 303.5), rgb(85, 40, 129).
Aa
White text reads best on this color (10.46:1).
About this color
#552881 is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.144 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.053 away. White text reads best on it, at 10.46:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.00:1 |
| White text | 10.46:1 |
Values
| HEX | #552881 |
| RGB | rgb(85, 40, 129) |
| HSL | hsl(270, 53%, 33%) |
| OKLCH | oklch(38.6% 0.144 303.5) |
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 #552881 | 10.46:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #552881 | 2.00:1 | Fails | Lc 10.2 | Not readable |
| #552881 text on white | 10.46:1 | AAA | Lc 93.7 | Preferred for body text |
| #552881 text on black | 2.00:1 | Fails | Lc -8.8 | 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
#EEE5FB
oklch(93.5% 0.031 304.3)
-
Step 200
200
#E1D0FA
oklch(88.5% 0.06 303.6)
-
Step 300
300
#CFAFFA
oklch(80.8% 0.109 303.6)
-
Step 400
400
#B882F7
oklch(70.8% 0.172 303.6)
-
Step 500
500
#A75BF4
oklch(63.1% 0.221 303.5)
-
Step 600
600
#9338E2
oklch(55.6% 0.24 303.6)
-
Step 700
700
#7D28C4
oklch(49% 0.222 303.5)
-
Step 800
800
#66249F
oklch(42.7% 0.185 303.7)
-
Step 900
900 (this color)
#552881
oklch(38.6% 0.144 303.5)
-
Step 950
950
#30174A
oklch(26.9% 0.092 303.3)
#552881 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) | #003E84 | 0.111 |
| Deuteranopia (no green cones) | #053F7F | 0.110 |
| Tritanopia (no blue cones) | #4C3C51 | 0.105 |
| Achromatopsia (no color) | #3F3F3F | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #552881
#552881
oklch(38.6% 0.144 303.5)
- #3A4C00
#3A4C00
oklch(38.7% 0.096 123.7)
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 #552881, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.053
- Rebecca Purple #663399 ΔE 0.057
- Indigo #4B0082 ΔE 0.059
- Blueberry #464196 ΔE 0.068
- Royal Purple #4B006E ΔE 0.071
- Chrysanthemum #560BAD ΔE 0.078
- Imperial Purple #480CA8 ΔE 0.080
- Grape Purple #5D1451 ΔE 0.089
Use #552881 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.