#511B39
Closest named color: Grape Purple (#5D1451). oklch(31.6% 0.089 349), rgb(81, 27, 57).
Aa
White text reads best on this color (13.41:1).
About this color
#511B39 is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.089 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.052 away. White text reads best on it, at 13.41:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.089) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.56:1 |
| White text | 13.41:1 |
Values
| HEX | #511B39 |
| RGB | rgb(81, 27, 57) |
| HSL | hsl(327, 50%, 21%) |
| OKLCH | oklch(31.6% 0.089 349) |
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 #511B39 | 13.41:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #511B39 | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #511B39 text on white | 13.41:1 | AAA | Lc 99.4 | Preferred for body text |
| #511B39 text on black | 1.56:1 | 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 950.
-
Step 50
50
#FDF2F7
oklch(97.1% 0.013 347.9)
-
Step 100
100
#FBE2ED
oklch(93.6% 0.031 349.3)
-
Step 200
200
#F8CADF
oklch(88.5% 0.058 349.2)
-
Step 300
300
#F4A5CB
oklch(81% 0.104 349.3)
-
Step 400
400
#EB6FB1
oklch(70.8% 0.169 349.2)
-
Step 500
500
#E03F9E
oklch(63.1% 0.215 348.9)
-
Step 600
600
#CB0088
oklch(55.6% 0.233 349.1)
-
Step 700
700
#AC0073
oklch(49.2% 0.206 349)
-
Step 800
800
#8E005E
oklch(42.7% 0.179 349.1)
-
Step 900
900
#72134D
oklch(37.6% 0.14 348.9)
-
Step 950
950 (this color)
#511B39
oklch(31.6% 0.089 349)
#511B39 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) | #22293A | 0.097 |
| Deuteranopia (no green cones) | #313238 | 0.086 |
| Tritanopia (no blue cones) | #571927 | 0.034 |
| Achromatopsia (no color) | #2F2F2F | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511B39
#511B39
oklch(31.6% 0.089 349)
- #003C2C
#003C2C
oklch(31.6% 0.064 168.6)
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 #511B39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.052
- Burgundy #610023 ΔE 0.053
- Deep Violet #490648 ΔE 0.057
- Eggplant Purple #430541 ΔE 0.062
- Plum Purple #4E0550 ΔE 0.062
- Aubergine #3D0734 ΔE 0.067
- Claret #680018 ΔE 0.071
- Dark Plum #3F012C ΔE 0.072
Use #511B39 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.