#513F7B
Closest named color: Dark Slate Blue (#483D8B). oklch(41.6% 0.098 295.6), rgb(81, 63, 123).
Aa
White text reads best on this color (8.94:1).
About this color
#513F7B is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.098 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 0.032 away. White text reads best on it, at 8.94:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.34:1 |
| White text | 8.94:1 |
Values
| HEX | #513F7B |
| RGB | rgb(81, 63, 123) |
| HSL | hsl(258, 32%, 36%) |
| OKLCH | oklch(41.6% 0.098 295.6) |
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 #513F7B | 8.94:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #513F7B | 2.34:1 | Fails | Lc 13.6 | Not readable |
| #513F7B text on white | 8.94:1 | AAA | Lc 90.4 | Preferred for body text |
| #513F7B text on black | 2.34:1 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#DAD5EC
oklch(88.4% 0.032 295.7)
-
Step 300
300
#C3BAE2
oklch(80.9% 0.057 295.4)
-
Step 400
400
#A595D4
oklch(70.7% 0.092 295.6)
-
Step 500
500
#907AC8
oklch(63.2% 0.117 295.9)
-
Step 600
600
#7A61B5
oklch(55.5% 0.128 295.6)
-
Step 700
700
#67509C
oklch(49.1% 0.119 295.6)
-
Step 800
800 (this color)
#513F7B
oklch(41.6% 0.098 295.6)
-
Step 900
900
#453866
oklch(37.7% 0.078 295.4)
-
Step 950
950
#28213B
oklch(26.9% 0.048 295.4)
#513F7B 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) | #2B4A7D | 0.059 |
| Deuteranopia (no green cones) | #2E497A | 0.056 |
| Tritanopia (no blue cones) | #484A57 | 0.078 |
| Achromatopsia (no color) | #494949 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513F7B
#513F7B
oklch(41.6% 0.098 295.6)
- #4A5200
#4A5200
oklch(41.7% 0.095 116.1)
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 #513F7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.032
- Blueberry #464196 ΔE 0.048
- Twilight #4E518B ΔE 0.051
- Dusk #4E5481 ΔE 0.058
- Rebecca Purple #663399 ΔE 0.069
- Dusty Grape #545775 ΔE 0.073
- Cobalt #1E488F ΔE 0.074
- Dusk Blue #26538D ΔE 0.075
Use #513F7B 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.