#551E63
Closest named color: Grape Purple (#5D1451). oklch(35.1% 0.125 318.9), rgb(85, 30, 99).
Aa
White text reads best on this color (11.98:1).
About this color
#551E63 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.125 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 0.038 away. White text reads best on it, at 11.98:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.75:1 |
| White text | 11.98:1 |
Values
| HEX | #551E63 |
| RGB | rgb(85, 30, 99) |
| HSL | hsl(288, 53%, 25%) |
| OKLCH | oklch(35.1% 0.125 318.9) |
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 #551E63 | 11.98:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #551E63 | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #551E63 text on white | 11.98:1 | AAA | Lc 96.8 | Preferred for body text |
| #551E63 text on black | 1.75:1 | 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
#F2E4F6
oklch(93.5% 0.028 318.7)
-
Step 200
200
#E8CFF0
oklch(88.5% 0.052 317.9)
-
Step 300
300
#DBAEE7
oklch(81% 0.092 319.1)
-
Step 400
400
#C880DC
oklch(70.8% 0.15 318.7)
-
Step 500
500
#B95BD2
oklch(63.1% 0.192 318.8)
-
Step 600
600
#A43BBE
oklch(55.5% 0.208 319)
-
Step 700
700
#8D2CA4
oklch(49.1% 0.194 319.2)
-
Step 800
800
#722785
oklch(42.7% 0.16 318.8)
-
Step 900
900 (this color)
#551E63
oklch(35.1% 0.125 318.9)
-
Step 950
950
#36173F
oklch(27% 0.08 318.1)
#551E63 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) | #063365 | 0.123 |
| Deuteranopia (no green cones) | #223861 | 0.105 |
| Tritanopia (no blue cones) | #552A3D | 0.079 |
| Achromatopsia (no color) | #373737 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551E63
#551E63
oklch(35.1% 0.125 318.9)
- #154700
#154700
oklch(35% 0.11 138.9)
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 #551E63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.038
- Plum Purple #4E0550 ΔE 0.052
- Royal Purple #4B006E ΔE 0.054
- Deep Violet #490648 ΔE 0.066
- Rich Purple #720058 ΔE 0.069
- Indigo #4B0082 ΔE 0.071
- Velvet #750851 ΔE 0.077
- Eggplant Purple #430541 ΔE 0.083
Use #551E63 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.