#511E37
Closest named color: Burgundy (#610023). oklch(32% 0.083 352.2), rgb(81, 30, 55).
Aa
White text reads best on this color (13.20:1).
About this color
#511E37 is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.083 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.054 away. White text reads best on it, at 13.20:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.59:1 |
| White text | 13.20:1 |
Values
| HEX | #511E37 |
| RGB | rgb(81, 30, 55) |
| HSL | hsl(331, 46%, 22%) |
| OKLCH | oklch(32% 0.083 352.2) |
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 #511E37 | 13.20:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #511E37 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #511E37 text on white | 13.20:1 | AAA | Lc 99.1 | Preferred for body text |
| #511E37 text on black | 1.59:1 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FAE3EC
oklch(93.7% 0.028 352)
-
Step 200
200
#F7CBDD
oklch(88.5% 0.055 351.8)
-
Step 300
300
#F2A6C7
oklch(80.8% 0.098 351.8)
-
Step 400
400
#E873AA
oklch(70.7% 0.156 352.3)
-
Step 500
500
#DD4795
oklch(63% 0.199 352.3)
-
Step 600
600
#C81A80
oklch(55.5% 0.217 352)
-
Step 700
700
#AD036C
oklch(49.2% 0.202 352.3)
-
Step 800
800
#8C0E58
oklch(42.6% 0.167 352.1)
-
Step 900
900
#711948
oklch(37.7% 0.13 352.6)
-
Step 950
950 (this color)
#511E37
oklch(32% 0.083 352.2)
#511E37 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) | #252A38 | 0.090 |
| Deuteranopia (no green cones) | #333336 | 0.081 |
| Tritanopia (no blue cones) | #571B28 | 0.028 |
| Achromatopsia (no color) | #303030 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511E37
#511E37
oklch(32% 0.083 352.2)
- #003D2F
#003D2F
oklch(32.1% 0.062 171.6)
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 #511E37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.054
- Grape Purple #5D1451 ΔE 0.057
- Deep Violet #490648 ΔE 0.066
- Claret #680018 ΔE 0.069
- Eggplant Purple #430541 ΔE 0.070
- Plum Purple #4E0550 ΔE 0.071
- Aubergine #3D0734 ΔE 0.073
- Merlot #730039 ΔE 0.076
Use #511E37 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.