#513C85
Closest named color: Dark Slate Blue (#483D8B). oklch(41.7% 0.118 293.9), rgb(81, 60, 133).
Aa
White text reads best on this color (8.99:1).
About this color
#513C85 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.118 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.018 away. White text reads best on it, at 8.99:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #513C85 |
| RGB | rgb(81, 60, 133) |
| HSL | hsl(257, 38%, 38%) |
| OKLCH | oklch(41.7% 0.118 293.9) |
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 #513C85 | 8.99:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #513C85 | 2.33:1 | Fails | Lc 13.6 | Not readable |
| #513C85 text on white | 8.99:1 | AAA | Lc 90.4 | Preferred for body text |
| #513C85 text on black | 2.33:1 | Fails | Lc -11.9 | 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
#DAD5F1
oklch(88.6% 0.038 293.8)
-
Step 300
300
#C2B9E9
oklch(80.9% 0.068 293.4)
-
Step 400
400
#A493DF
oklch(70.7% 0.11 293.7)
-
Step 500
500
#8F76D5
oklch(63% 0.14 294.1)
-
Step 600
600
#7A5DC3
oklch(55.6% 0.153 293.9)
-
Step 700
700
#674CA8
oklch(49.1% 0.142 294.1)
-
Step 800
800 (this color)
#513C85
oklch(41.7% 0.118 293.9)
-
Step 900
900
#45366D
oklch(37.7% 0.092 294.1)
-
Step 950
950
#282040
oklch(27% 0.059 293.6)
#513C85 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) | #1D4A88 | 0.073 |
| Deuteranopia (no green cones) | #224883 | 0.069 |
| Tritanopia (no blue cones) | #444B5A | 0.095 |
| Achromatopsia (no color) | #494949 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513C85
#513C85
oklch(41.7% 0.118 293.9)
- #4C5100
#4C5100
oklch(41.6% 0.093 113.8)
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 #513C85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.018
- Blueberry #464196 ΔE 0.034
- Rebecca Purple #663399 ΔE 0.054
- Twilight #4E518B ΔE 0.056
- Dusk #4E5481 ΔE 0.068
- Cobalt #1E488F ΔE 0.071
- Dusk Blue #26538D ΔE 0.078
- Light Navy #155084 ΔE 0.085
Use #513C85 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.