#513D7E
Closest named color: Dark Slate Blue (#483D8B). oklch(41.4% 0.106 295.6), rgb(81, 61, 126).
Aa
White text reads best on this color (9.05:1).
About this color
#513D7E is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.106 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.027 away. White text reads best on it, at 9.05:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.31:1 |
| White text | 9.05:1 |
Values
| HEX | #513D7E |
| RGB | rgb(81, 61, 126) |
| HSL | hsl(258, 35%, 37%) |
| OKLCH | oklch(41.4% 0.106 295.6) |
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 #513D7E | 9.05:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #513D7E | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #513D7E text on white | 9.05:1 | AAA | Lc 90.6 | Preferred for body text |
| #513D7E text on black | 2.31:1 | Fails | Lc -11.7 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EAE8F5
oklch(93.6% 0.018 293.1)
-
Step 200
200
#DAD5EE
oklch(88.5% 0.034 294.9)
-
Step 300
300
#C3B9E5
oklch(80.9% 0.062 295.4)
-
Step 400
400
#A594D8
oklch(70.7% 0.099 295.2)
-
Step 500
500
#9078CD
oklch(63.1% 0.127 295.5)
-
Step 600
600
#7B5FBA
oklch(55.5% 0.138 295.8)
-
Step 700
700
#684EA0
oklch(49% 0.128 296)
-
Step 800
800 (this color)
#513D7E
oklch(41.4% 0.106 295.6)
-
Step 900
900
#463768
oklch(37.7% 0.083 296.3)
-
Step 950
950
#29213D
oklch(27.1% 0.052 295.9)
#513D7E 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) | #254980 | 0.066 |
| Deuteranopia (no green cones) | #2A487C | 0.062 |
| Tritanopia (no blue cones) | #474A57 | 0.086 |
| Achromatopsia (no color) | #494949 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513D7E
#513D7E
oklch(41.4% 0.106 295.6)
- #4A5100
#4A5100
oklch(41.4% 0.094 115.4)
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 #513D7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.027
- Blueberry #464196 ΔE 0.043
- Twilight #4E518B ΔE 0.055
- Rebecca Purple #663399 ΔE 0.063
- Dusk #4E5481 ΔE 0.063
- Cobalt #1E488F ΔE 0.073
- Dusk Blue #26538D ΔE 0.078
- Dusty Grape #545775 ΔE 0.080
Use #513D7E 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.