#513E85
Closest named color: Dark Slate Blue (#483D8B). oklch(42.1% 0.114 293.2), rgb(81, 62, 133).
Aa
White text reads best on this color (8.83:1).
About this color
#513E85 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.114 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.019 away. White text reads best on it, at 8.83:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.37:1 |
| White text | 8.83:1 |
Values
| HEX | #513E85 |
| RGB | rgb(81, 62, 133) |
| HSL | hsl(256, 36%, 38%) |
| OKLCH | oklch(42.1% 0.114 293.2) |
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 #513E85 | 8.83:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #513E85 | 2.37:1 | Fails | Lc 14.0 | Not readable |
| #513E85 text on white | 8.83:1 | AAA | Lc 90.0 | Fine for body text |
| #513E85 text on black | 2.37:1 | Fails | Lc -12.3 | 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 800.
-
Step 50
50
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5F0
oklch(88.5% 0.037 294.1)
-
Step 300
300
#C2B9E9
oklch(80.9% 0.068 293.4)
-
Step 400
400
#A394DD
oklch(70.7% 0.106 292.9)
-
Step 500
500
#8E77D4
oklch(63.1% 0.137 293.4)
-
Step 600
600
#795EC1
oklch(55.6% 0.149 293.5)
-
Step 700
700
#664DA7
oklch(49.1% 0.139 293.4)
-
Step 800
800 (this color)
#513E85
oklch(42.1% 0.114 293.2)
-
Step 900
900
#44376C
oklch(37.7% 0.089 292.9)
-
Step 950
950
#28203F
oklch(26.9% 0.057 294.1)
#513E85 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) | #214B87 | 0.069 |
| Deuteranopia (no green cones) | #254983 | 0.065 |
| Tritanopia (no blue cones) | #444C5B | 0.092 |
| Achromatopsia (no color) | #4A4A4A | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513E85
#513E85
oklch(42.1% 0.114 293.2)
- #4E5200
#4E5200
oklch(42.1% 0.094 113)
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 #513E85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.019
- Blueberry #464196 ΔE 0.033
- Twilight #4E518B ΔE 0.051
- Rebecca Purple #663399 ΔE 0.055
- Dusk #4E5481 ΔE 0.063
- Cobalt #1E488F ΔE 0.070
- Dusk Blue #26538D ΔE 0.074
- Denim Blue #3B5B92 ΔE 0.081
Use #513E85 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.