#513E70
Closest named color: Dark Slate Blue (#483D8B). oklch(40.7% 0.084 300.2), rgb(81, 62, 112).
Aa
White text reads best on this color (9.23:1).
About this color
#513E70 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.084 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.049 away. White text reads best on it, at 9.23:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.084) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.27:1 |
| White text | 9.23:1 |
Values
| HEX | #513E70 |
| RGB | rgb(81, 62, 112) |
| HSL | hsl(263, 29%, 34%) |
| OKLCH | oklch(40.7% 0.084 300.2) |
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 #513E70 | 9.23:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #513E70 | 2.27:1 | Fails | Lc 12.8 | Not readable |
| #513E70 text on white | 9.23:1 | AAA | Lc 91.2 | Preferred for body text |
| #513E70 text on black | 2.27:1 | Fails | Lc -11.1 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DCD5E9
oklch(88.5% 0.028 301.7)
-
Step 300
300
#C5BADC
oklch(80.9% 0.049 300.1)
-
Step 400
400
#A896CB
oklch(70.8% 0.078 300)
-
Step 500
500
#937BBD
oklch(63.1% 0.1 300.3)
-
Step 600
600
#7E63A9
oklch(55.6% 0.109 300.7)
-
Step 700
700
#6A5291
oklch(49.1% 0.101 300.3)
-
Step 800
800 (this color)
#513E70
oklch(40.7% 0.084 300.2)
-
Step 900
900
#47395F
oklch(37.7% 0.065 300.2)
-
Step 950
950
#2A2238
oklch(27.2% 0.041 300.4)
#513E70 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) | #304772 | 0.054 |
| Deuteranopia (no green cones) | #34476F | 0.050 |
| Tritanopia (no blue cones) | #4B4751 | 0.067 |
| Achromatopsia (no color) | #474747 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513E70
#513E70
oklch(40.7% 0.084 300.2)
- #445014
#445014
oklch(40.8% 0.084 120.1)
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 #513E70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.049
- Twilight #4E518B ΔE 0.062
- Dusk #4E5481 ΔE 0.063
- Blueberry #464196 ΔE 0.065
- Dusty Grape #545775 ΔE 0.072
- Dark Grey Blue #29465B ΔE 0.077
- YInMn Blue #415A77 ΔE 0.081
- Cobalt #1E488F ΔE 0.083
Use #513E70 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.