#511644
Closest named color: Grape Purple (#5D1451). oklch(31.5% 0.105 337.7), rgb(81, 22, 68).
Aa
White text reads best on this color (13.56:1).
About this color
#511644 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.105 and its hue 338°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.034 away. White text reads best on it, at 13.56:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.105) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.54:1 |
| White text | 13.56:1 |
Values
| HEX | #511644 |
| RGB | rgb(81, 22, 68) |
| HSL | hsl(313, 57%, 20%) |
| OKLCH | oklch(31.5% 0.105 337.7) |
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 #511644 | 13.56:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #511644 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #511644 text on white | 13.56:1 | AAA | Lc 99.4 | Preferred for body text |
| #511644 text on black | 1.54:1 | 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
#FDF1F9
oklch(97% 0.017 337.6)
-
Step 100
100
#FBE1F2
oklch(93.6% 0.036 338.6)
-
Step 200
200
#F8C8E9
oklch(88.4% 0.069 337.8)
-
Step 300
300
#F5A1DD
oklch(81% 0.124 337.9)
-
Step 400
400
#EB66CC
oklch(70.7% 0.2 337.5)
-
Step 500
500
#E128BE
oklch(63.1% 0.255 337.7)
-
Step 600
600
#C300A4
oklch(55.6% 0.244 337.6)
-
Step 700
700
#A5008A
oklch(49.1% 0.215 337.7)
-
Step 800
800
#880072
oklch(42.6% 0.187 337.4)
-
Step 900
900
#73005F
oklch(37.7% 0.165 338)
-
Step 950
950 (this color)
#511644
oklch(31.5% 0.105 337.7)
#511644 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) | #182845 | 0.114 |
| Deuteranopia (no green cones) | #2B3143 | 0.098 |
| Tritanopia (no blue cones) | #56192A | 0.051 |
| Achromatopsia (no color) | #2E2E2E | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511644
#511644
oklch(31.5% 0.105 337.7)
- #003D22
#003D22
oklch(31.7% 0.075 157.1)
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 #511644, closest first.
No curated palette has a color within ΔE 0.04 of #511644.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.034
- Deep Violet #490648 ΔE 0.037
- Plum Purple #4E0550 ΔE 0.038
- Eggplant Purple #430541 ΔE 0.047
- Aubergine #3D0734 ΔE 0.062
- Burgundy #610023 ΔE 0.067
- Dark Plum #3F012C ΔE 0.070
- Eggplant #380835 ΔE 0.071
Use #511644 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.