#511733
Closest named color: Burgundy (#610023). oklch(30.8% 0.092 354), rgb(81, 23, 51).
Aa
White text reads best on this color (13.81:1).
About this color
#511733 is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.092 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.045 away. White text reads best on it, at 13.81:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.092) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.52:1 |
| White text | 13.81:1 |
Values
| HEX | #511733 |
| RGB | rgb(81, 23, 51) |
| HSL | hsl(331, 56%, 20%) |
| OKLCH | oklch(30.8% 0.092 354) |
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 #511733 | 13.81:1 | AAA | Lc -103.0 | Preferred for body text |
| Black text on #511733 | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #511733 text on white | 13.81:1 | AAA | Lc 99.8 | Preferred for body text |
| #511733 text on black | 1.52:1 | 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
#FEF2F6
oklch(97.2% 0.014 355)
-
Step 100
100
#FCE2EB
oklch(93.6% 0.031 354.7)
-
Step 200
200
#FBC9DC
oklch(88.5% 0.061 353.7)
-
Step 300
300
#F8A3C5
oklch(80.9% 0.108 354.2)
-
Step 400
400
#F06CA8
oklch(70.7% 0.174 354)
-
Step 500
500
#E73792
oklch(63.1% 0.223 354.3)
-
Step 600
600
#CE007C
oklch(55.7% 0.229 354.2)
-
Step 700
700
#AE0068
oklch(49.1% 0.202 354.2)
-
Step 800
800
#900055
oklch(42.7% 0.176 354.3)
-
Step 900
900
#760C47
oklch(37.7% 0.145 353.8)
-
Step 950
950 (this color)
#511733
oklch(30.8% 0.092 354)
#511733 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) | #202634 | 0.103 |
| Deuteranopia (no green cones) | #303132 | 0.093 |
| Tritanopia (no blue cones) | #581322 | 0.032 |
| Achromatopsia (no color) | #2D2D2D | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511733
#511733
oklch(30.8% 0.092 354)
- #00392E
#00392E
oklch(30.8% 0.058 175)
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 #511733, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.045
- Grape Purple #5D1451 ΔE 0.059
- Deep Violet #490648 ΔE 0.059
- Eggplant Purple #430541 ΔE 0.062
- Aubergine #3D0734 ΔE 0.063
- Claret #680018 ΔE 0.064
- Dark Plum #3F012C ΔE 0.065
- Plum Purple #4E0550 ΔE 0.066
Use #511733 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.