#513865
Closest named color: Dark Slate Blue (#483D8B). oklch(38.9% 0.079 308.7), rgb(81, 56, 101).
Aa
White text reads best on this color (9.98:1).
About this color
#513865 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.079 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 0.065 away. White text reads best on it, at 9.98:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.10:1 |
| White text | 9.98:1 |
Values
| HEX | #513865 |
| RGB | rgb(81, 56, 101) |
| HSL | hsl(273, 29%, 31%) |
| OKLCH | oklch(38.9% 0.079 308.7) |
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 #513865 | 9.98:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #513865 | 2.10:1 | Fails | Lc 10.9 | Not readable |
| #513865 text on white | 9.98:1 | AAA | Lc 93.1 | Preferred for body text |
| #513865 text on black | 2.10:1 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
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
#CCB7DF
oklch(81% 0.06 308.7)
-
Step 400
400
#B290CE
oklch(70.7% 0.096 309.1)
-
Step 500
500
#9F74C1
oklch(63.2% 0.121 309)
-
Step 600
600
#8A5BAE
oklch(55.7% 0.133 308.8)
-
Step 700
700
#754A95
oklch(49.1% 0.124 309)
-
Step 800
800
#5F3D79
oklch(42.6% 0.103 308.8)
-
Step 900
900 (this color)
#513865
oklch(38.9% 0.079 308.7)
-
Step 950
950
#2D1F39
oklch(26.9% 0.05 308.1)
#513865 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) | #2E4167 | 0.059 |
| Deuteranopia (no green cones) | #344364 | 0.055 |
| Tritanopia (no blue cones) | #4E3F49 | 0.058 |
| Achromatopsia (no color) | #424242 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513865
#513865
oklch(38.9% 0.079 308.7)
- #384D1A
#384D1A
oklch(39% 0.08 128.5)
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 #513865, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.065
- Dark Grey Blue #29465B ΔE 0.076
- Purple Brown #673A3F ΔE 0.079
- Grape Purple #5D1451 ΔE 0.082
- Charcoal Grey #3C4142 ΔE 0.083
- Dusk #4E5481 ΔE 0.083
- Blueberry #464196 ΔE 0.083
- Twilight #4E518B ΔE 0.084
Use #513865 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.