#551B47
Closest named color: Grape Purple (#5D1451). oklch(33% 0.103 338.4), rgb(85, 27, 71).
Aa
White text reads best on this color (12.85:1).
About this color
#551B47 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.103 and its hue 338°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.027 away. White text reads best on it, at 12.85:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.103) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.63:1 |
| White text | 12.85:1 |
Values
| HEX | #551B47 |
| RGB | rgb(85, 27, 71) |
| HSL | hsl(314, 52%, 22%) |
| OKLCH | oklch(33% 0.103 338.4) |
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 #551B47 | 12.85:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #551B47 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #551B47 text on white | 12.85:1 | AAA | Lc 98.4 | Preferred for body text |
| #551B47 text on black | 1.63:1 | 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
#FAF3F8
oklch(97.1% 0.01 335.5)
-
Step 100
100
#F5E4EF
oklch(93.6% 0.023 338.6)
-
Step 200
200
#EDCFE3
oklch(88.5% 0.043 338.2)
-
Step 300
300
#E3AED2
oklch(81% 0.077 338.5)
-
Step 400
400
#D281BB
oklch(70.7% 0.124 338.2)
-
Step 500
500
#C45EAA
oklch(63% 0.159 338)
-
Step 600
600
#B04295
oklch(55.7% 0.172 338.5)
-
Step 700
700
#97327F
oklch(49.1% 0.161 338.5)
-
Step 800
800
#7A2B67
oklch(42.6% 0.132 338.3)
-
Step 900
900 (this color)
#551B47
oklch(33% 0.103 338.4)
-
Step 950
950
#3A1831
oklch(26.9% 0.065 338.4)
#551B47 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) | #1D2C48 | 0.111 |
| Deuteranopia (no green cones) | #2F3546 | 0.096 |
| Tritanopia (no blue cones) | #5A1D2E | 0.048 |
| Achromatopsia (no color) | #323232 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551B47
#551B47
oklch(33% 0.103 338.4)
- #004126
#004126
oklch(33.1% 0.077 158.3)
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 #551B47, closest first.
No curated palette has a color within ΔE 0.04 of #551B47.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.027
- Plum Purple #4E0550 ΔE 0.047
- Deep Violet #490648 ΔE 0.050
- Eggplant Purple #430541 ΔE 0.062
- Burgundy #610023 ΔE 0.067
- Merlot #730039 ΔE 0.070
- Velvet #750851 ΔE 0.071
- Rich Purple #720058 ΔE 0.071
Use #551B47 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.