#513571
Closest named color: Dark Slate Blue (#483D8B). oklch(39.1% 0.102 303.6), rgb(81, 53, 113).
Aa
White text reads best on this color (10.01:1).
About this color
#513571 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.102 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.048 away. White text reads best on it, at 10.01:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.09:1 |
| White text | 10.01:1 |
Values
| HEX | #513571 |
| RGB | rgb(81, 53, 113) |
| HSL | hsl(268, 36%, 33%) |
| OKLCH | oklch(39.1% 0.102 303.6) |
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 #513571 | 10.01:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #513571 | 2.09:1 | Fails | Lc 10.9 | Not readable |
| #513571 text on white | 10.01:1 | AAA | Lc 93.0 | Preferred for body text |
| #513571 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DFD3F1
oklch(88.6% 0.043 303.7)
-
Step 300
300
#CBB5E9
oklch(80.9% 0.076 304)
-
Step 400
400
#B18DDF
oklch(70.8% 0.122 303.6)
-
Step 500
500
#9E6ED5
oklch(63.1% 0.156 303.8)
-
Step 600
600
#8954C3
oklch(55.7% 0.169 303.4)
-
Step 700
700
#7443A8
oklch(49% 0.158 303.4)
-
Step 800
800
#5F3888
oklch(42.7% 0.131 303.9)
-
Step 900
900 (this color)
#513571
oklch(39.1% 0.102 303.6)
-
Step 950
950
#2D1D40
oklch(26.9% 0.065 303.4)
#513571 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) | #224273 | 0.075 |
| Deuteranopia (no green cones) | #2A4270 | 0.068 |
| Tritanopia (no blue cones) | #4B404D | 0.077 |
| Achromatopsia (no color) | #424242 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513571
#513571
oklch(39.1% 0.102 303.6)
- #3B4D00
#3B4D00
oklch(39.1% 0.096 123.6)
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 #513571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.048
- Blueberry #464196 ΔE 0.067
- Rebecca Purple #663399 ΔE 0.077
- Twilight #4E518B ΔE 0.080
- Grape Purple #5D1451 ΔE 0.083
- Dusk #4E5481 ΔE 0.085
- Cobalt #1E488F ΔE 0.091
- Dark Grey Blue #29465B ΔE 0.091
Use #513571 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.