#513D89
Closest named color: Dark Slate Blue (#483D8B). oklch(42.1% 0.122 292.5), rgb(81, 61, 137).
Aa
White text reads best on this color (8.82:1).
About this color
#513D89 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.122 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 0.016 away. White text reads best on it, at 8.82:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.37:1 |
| White text | 8.82:1 |
Values
| HEX | #513D89 |
| RGB | rgb(81, 61, 137) |
| HSL | hsl(256, 38%, 39%) |
| OKLCH | oklch(42.1% 0.122 292.5) |
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 #513D89 | 8.82:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #513D89 | 2.37:1 | Fails | Lc 14.0 | Not readable |
| #513D89 text on white | 8.82:1 | AAA | Lc 90.0 | Fine for body text |
| #513D89 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
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#D9D5F2
oklch(88.5% 0.04 291.9)
-
Step 300
300
#C1B9EB
oklch(80.9% 0.07 292.1)
-
Step 400
400
#A393E1
oklch(70.7% 0.113 292.7)
-
Step 500
500
#8D76D9
oklch(63.1% 0.146 292.4)
-
Step 600
600
#785DC6
oklch(55.6% 0.157 292.4)
-
Step 700
700
#654CAB
oklch(49.1% 0.146 292.3)
-
Step 800
800 (this color)
#513D89
oklch(42.1% 0.122 292.5)
-
Step 900
900
#44366F
oklch(37.7% 0.095 292.6)
-
Step 950
950
#282041
oklch(27% 0.06 293.1)
#513D89 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) | #1A4B8C | 0.074 |
| Deuteranopia (no green cones) | #1F4987 | 0.071 |
| Tritanopia (no blue cones) | #424D5D | 0.099 |
| Achromatopsia (no color) | #4A4A4A | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513D89
#513D89
oklch(42.1% 0.122 292.5)
- #4F5200
#4F5200
oklch(42.2% 0.093 112.2)
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 #513D89, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.016
- Blueberry #464196 ΔE 0.028
- Rebecca Purple #663399 ΔE 0.050
- Twilight #4E518B ΔE 0.053
- Dusk #4E5481 ΔE 0.067
- Cobalt #1E488F ΔE 0.070
- Dusk Blue #26538D ΔE 0.076
- Denim Blue #3B5B92 ΔE 0.083
Use #513D89 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.