#551C60
Closest named color: Grape Purple (#5D1451). oklch(34.6% 0.125 320.8), rgb(85, 28, 96).
Aa
White text reads best on this color (12.20:1).
About this color
#551C60 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.125 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.033 away. White text reads best on it, at 12.20:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.72:1 |
| White text | 12.20:1 |
Values
| HEX | #551C60 |
| RGB | rgb(85, 28, 96) |
| HSL | hsl(290, 55%, 24%) |
| OKLCH | oklch(34.6% 0.125 320.8) |
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 #551C60 | 12.20:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #551C60 | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #551C60 text on white | 12.20:1 | AAA | Lc 97.2 | Preferred for body text |
| #551C60 text on black | 1.72:1 | 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
#F2E4F5
oklch(93.5% 0.027 320.2)
-
Step 200
200
#E9CFEF
oklch(88.6% 0.051 319.9)
-
Step 300
300
#DDADE6
oklch(80.9% 0.094 321)
-
Step 400
400
#CA7FD9
oklch(70.7% 0.15 320.8)
-
Step 500
500
#BB5ACF
oklch(63.1% 0.192 320.5)
-
Step 600
600
#A73ABB
oklch(55.6% 0.208 321)
-
Step 700
700
#8F2BA1
oklch(49.1% 0.193 321.1)
-
Step 800
800
#742683
oklch(42.8% 0.16 320.7)
-
Step 900
900 (this color)
#551C60
oklch(34.6% 0.125 320.8)
-
Step 950
950
#37173E
oklch(27% 0.079 320.2)
#551C60 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) | #073162 | 0.125 |
| Deuteranopia (no green cones) | #23375E | 0.106 |
| Tritanopia (no blue cones) | #56283B | 0.077 |
| Achromatopsia (no color) | #353535 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551C60
#551C60
oklch(34.6% 0.125 320.8)
- #0C4700
#0C4700
oklch(34.7% 0.114 140.8)
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 #551C60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.033
- Plum Purple #4E0550 ΔE 0.047
- Royal Purple #4B006E ΔE 0.053
- Deep Violet #490648 ΔE 0.060
- Rich Purple #720058 ΔE 0.067
- Indigo #4B0082 ΔE 0.074
- Velvet #750851 ΔE 0.075
- Eggplant Purple #430541 ΔE 0.077
Use #551C60 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.