#551C5D
Closest named color: Grape Purple (#5D1451). oklch(34.4% 0.122 322.6), rgb(85, 28, 93).
Aa
White text reads best on this color (12.27:1).
About this color
#551C5D is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.122 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.029 away. White text reads best on it, at 12.27:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.71:1 |
| White text | 12.27:1 |
Values
| HEX | #551C5D |
| RGB | rgb(85, 28, 93) |
| HSL | hsl(293, 54%, 24%) |
| OKLCH | oklch(34.4% 0.122 322.6) |
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 #551C5D | 12.27:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #551C5D | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #551C5D text on white | 12.27:1 | AAA | Lc 97.3 | Preferred for body text |
| #551C5D 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
#F3E4F4
oklch(93.5% 0.027 323.9)
-
Step 200
200
#EACFED
oklch(88.6% 0.05 322.8)
-
Step 300
300
#DDADE3
oklch(80.8% 0.091 322.7)
-
Step 400
400
#CB7FD5
oklch(70.6% 0.146 322.7)
-
Step 500
500
#BC5BCA
oklch(63.1% 0.186 322.4)
-
Step 600
600
#A83BB7
oklch(55.6% 0.204 322.6)
-
Step 700
700
#902C9D
oklch(49.1% 0.189 322.9)
-
Step 800
800
#752780
oklch(42.8% 0.156 322.5)
-
Step 900
900 (this color)
#551C5D
oklch(34.4% 0.122 322.6)
-
Step 950
950
#37173C
oklch(26.9% 0.077 322.1)
#551C5D 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) | #0C315F | 0.123 |
| Deuteranopia (no green cones) | #25375B | 0.105 |
| Tritanopia (no blue cones) | #56273A | 0.073 |
| Achromatopsia (no color) | #353535 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551C5D
#551C5D
oklch(34.4% 0.122 322.6)
- #004700
#004700
oklch(34.5% 0.117 142.5)
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 #551C5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.029
- Plum Purple #4E0550 ΔE 0.044
- Royal Purple #4B006E ΔE 0.057
- Deep Violet #490648 ΔE 0.057
- Rich Purple #720058 ΔE 0.066
- Velvet #750851 ΔE 0.073
- Eggplant Purple #430541 ΔE 0.074
- Indigo #4B0082 ΔE 0.079
Use #551C5D 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.