#551864
Closest named color: Grape Purple (#5D1451). oklch(34.5% 0.134 318.9), rgb(85, 24, 100).
Aa
White text reads best on this color (12.34:1).
About this color
#551864 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.134 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.039 away. White text reads best on it, at 12.34:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.70:1 |
| White text | 12.34:1 |
Values
| HEX | #551864 |
| RGB | rgb(85, 24, 100) |
| HSL | hsl(288, 61%, 24%) |
| OKLCH | oklch(34.5% 0.134 318.9) |
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 #551864 | 12.34:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #551864 | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #551864 text on white | 12.34:1 | AAA | Lc 97.3 | Preferred for body text |
| #551864 text on black | 1.70:1 | Fails | Lc 0.0 | 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
#F9F3FB
oklch(97.1% 0.012 317.7)
-
Step 100
100
#F3E4F7
oklch(93.6% 0.03 319.1)
-
Step 200
200
#EACEF1
oklch(88.5% 0.056 319.5)
-
Step 300
300
#DDACEA
oklch(80.9% 0.1 319.1)
-
Step 400
400
#CB7DE0
oklch(70.8% 0.161 318.9)
-
Step 500
500
#BC56D7
oklch(63.2% 0.206 318.7)
-
Step 600
600
#A833C4
oklch(55.7% 0.224 319)
-
Step 700
700
#9023A9
oklch(49.2% 0.208 319.1)
-
Step 800
800
#752189
oklch(42.8% 0.172 319.1)
-
Step 900
900 (this color)
#551864
oklch(34.5% 0.134 318.9)
-
Step 950
950
#371540
oklch(26.9% 0.085 318.8)
#551864 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) | #003166 | 0.132 |
| Deuteranopia (no green cones) | #1D3762 | 0.116 |
| Tritanopia (no blue cones) | #55273C | 0.084 |
| Achromatopsia (no color) | #353535 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551864
#551864
oklch(34.5% 0.134 318.9)
- #144500
#144500
oklch(34.4% 0.108 139)
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 #551864, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.039
- Royal Purple #4B006E ΔE 0.044
- Plum Purple #4E0550 ΔE 0.046
- Deep Violet #490648 ΔE 0.061
- Indigo #4B0082 ΔE 0.065
- Rich Purple #720058 ΔE 0.068
- Eggplant Purple #430541 ΔE 0.079
- Velvet #750851 ΔE 0.079
Use #551864 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.