#551151
Closest named color: Grape Purple (#5D1451). oklch(32.5% 0.126 330.6), rgb(85, 17, 81).
Aa
White text reads best on this color (13.24:1).
About this color
#551151 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.126 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.020 away. White text reads best on it, at 13.24:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.58:1 |
| White text | 13.24:1 |
Values
| HEX | #551151 |
| RGB | rgb(85, 17, 81) |
| HSL | hsl(304, 67%, 20%) |
| OKLCH | oklch(32.5% 0.126 330.6) |
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 #551151 | 13.24:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #551151 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #551151 text on white | 13.24:1 | AAA | Lc 98.7 | Preferred for body text |
| #551151 text on black | 1.58:1 | 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
#FBF3F9
oklch(97.2% 0.012 334.1)
-
Step 100
100
#F5E4F2
oklch(93.6% 0.026 331.5)
-
Step 200
200
#EECDEA
oklch(88.5% 0.053 330)
-
Step 300
300
#E4ABDD
oklch(80.9% 0.093 330.6)
-
Step 400
400
#D57BCC
oklch(70.8% 0.151 330.7)
-
Step 500
500
#C754BF
oklch(63.1% 0.193 330.4)
-
Step 600
600
#B232AB
oklch(55.5% 0.21 330.3)
-
Step 700
700
#992392
oklch(49.1% 0.194 330.7)
-
Step 800
800
#7C2077
oklch(42.6% 0.161 330.3)
-
Step 900
900 (this color)
#551151
oklch(32.5% 0.126 330.6)
-
Step 950
950
#3B1538
oklch(27% 0.079 330.6)
#551151 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) | #092A53 | 0.136 |
| Deuteranopia (no green cones) | #26334F | 0.115 |
| Tritanopia (no blue cones) | #591A30 | 0.067 |
| Achromatopsia (no color) | #303030 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551151
#551151
oklch(32.5% 0.126 330.6)
- #00401A
#00401A
oklch(32.5% 0.088 150.6)
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 #551151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.020
- Plum Purple #4E0550 ΔE 0.025
- Deep Violet #490648 ΔE 0.036
- Eggplant Purple #430541 ΔE 0.054
- Royal Purple #4B006E ΔE 0.063
- Rich Purple #720058 ΔE 0.064
- Velvet #750851 ΔE 0.071
- Aubergine #3D0734 ΔE 0.077
Use #551151 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.