#551C5E
Closest named color: Grape Purple (#5D1451). oklch(34.5% 0.123 322), rgb(85, 28, 94).
Aa
White text reads best on this color (12.25:1).
About this color
#551C5E is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.123 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.030 away. White text reads best on it, at 12.25:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.71:1 |
| White text | 12.25:1 |
Values
| HEX | #551C5E |
| RGB | rgb(85, 28, 94) |
| HSL | hsl(292, 54%, 24%) |
| OKLCH | oklch(34.5% 0.123 322) |
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 #551C5E | 12.25:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #551C5E | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #551C5E text on white | 12.25:1 | AAA | Lc 97.3 | Preferred for body text |
| #551C5E text on black | 1.71:1 | 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
#FAF3FA
oklch(97.2% 0.012 325.7)
-
Step 100
100
#F3E4F5
oklch(93.6% 0.028 322.2)
-
Step 200
200
#EACFEE
oklch(88.6% 0.051 321.9)
-
Step 300
300
#DDADE4
oklch(80.9% 0.092 322.1)
-
Step 400
400
#CB7FD7
oklch(70.7% 0.148 322)
-
Step 500
500
#BC5ACC
oklch(63.1% 0.189 321.8)
-
Step 600
600
#A73BB8
oklch(55.5% 0.204 321.9)
-
Step 700
700
#8F2C9F
oklch(49.1% 0.19 321.7)
-
Step 800
800
#742681
oklch(42.6% 0.158 321.6)
-
Step 900
900 (this color)
#551C5E
oklch(34.5% 0.123 322)
-
Step 950
950
#37173D
oklch(27% 0.078 321.1)
#551C5E 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) | #0A3160 | 0.124 |
| Deuteranopia (no green cones) | #24375C | 0.106 |
| Tritanopia (no blue cones) | #56273A | 0.075 |
| Achromatopsia (no color) | #353535 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551C5E
#551C5E
oklch(34.5% 0.123 322)
- #044700
#044700
oklch(34.6% 0.116 141.9)
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 #551C5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.030
- Plum Purple #4E0550 ΔE 0.045
- Royal Purple #4B006E ΔE 0.056
- Deep Violet #490648 ΔE 0.058
- Rich Purple #720058 ΔE 0.066
- Velvet #750851 ΔE 0.074
- Eggplant Purple #430541 ΔE 0.075
- Indigo #4B0082 ΔE 0.077
Use #551C5E 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.