#513864
Closest named color: Dark Slate Blue (#483D8B). oklch(38.9% 0.078 309.3), rgb(81, 56, 100).
Aa
White text reads best on this color (10.00:1).
About this color
#513864 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.078 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.067 away. White text reads best on it, at 10.00:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.09:1 |
| White text | 10.00:1 |
Values
| HEX | #513864 |
| RGB | rgb(81, 56, 100) |
| HSL | hsl(274, 28%, 31%) |
| OKLCH | oklch(38.9% 0.078 309.3) |
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 #513864 | 10.00:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #513864 | 2.09:1 | Fails | Lc 10.8 | Not readable |
| #513864 text on white | 10.00:1 | AAA | Lc 93.1 | Preferred for body text |
| #513864 text on black | 2.09:1 | Fails | Lc -9.4 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F3
oklch(93.6% 0.017 308.3)
-
Step 200
200
#DFD4EA
oklch(88.5% 0.032 308.1)
-
Step 300
300
#CCB7DE
oklch(81% 0.059 309.3)
-
Step 400
400
#B290CD
oklch(70.6% 0.094 309.5)
-
Step 500
500
#9F74C0
oklch(63.1% 0.12 309.3)
-
Step 600
600
#8A5BAC
oklch(55.6% 0.13 309.5)
-
Step 700
700
#754B94
oklch(49.2% 0.121 309.2)
-
Step 800
800
#5F3E78
oklch(42.7% 0.099 309)
-
Step 900
900 (this color)
#513864
oklch(38.9% 0.078 309.3)
-
Step 950
950
#2E1F39
oklch(27% 0.051 309.8)
#513864 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) | #2F4166 | 0.058 |
| Deuteranopia (no green cones) | #354363 | 0.054 |
| Tritanopia (no blue cones) | #4F3F49 | 0.057 |
| Achromatopsia (no color) | #424242 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513864
#513864
oklch(38.9% 0.078 309.3)
- #374D1C
#374D1C
oklch(39% 0.079 129.7)
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 #513864, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.067
- Dark Grey Blue #29465B ΔE 0.076
- Purple Brown #673A3F ΔE 0.078
- Charcoal Grey #3C4142 ΔE 0.081
- Grape Purple #5D1451 ΔE 0.081
- Dusk #4E5481 ΔE 0.083
- Onyx #343A40 ΔE 0.085
- Twilight #4E518B ΔE 0.085
Use #513864 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.