#513168
Closest named color: Dark Slate Blue (#483D8B). oklch(37.8% 0.097 309.4), rgb(81, 49, 104).
Aa
White text reads best on this color (10.55:1).
About this color
#513168 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.097 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.064 away. White text reads best on it, at 10.55:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.98:1 |
| White text | 10.55:1 |
Values
| HEX | #513168 |
| RGB | rgb(81, 49, 104) |
| HSL | hsl(275, 36%, 30%) |
| OKLCH | oklch(37.8% 0.097 309.4) |
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 #513168 | 10.55:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #513168 | 1.98:1 | Fails | Lc 9.6 | Not readable |
| #513168 text on white | 10.55:1 | AAA | Lc 94.3 | Preferred for body text |
| #513168 text on black | 1.98:1 | Fails | Lc -8.3 | 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 900.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E1D2EE
oklch(88.4% 0.041 309.4)
-
Step 300
300
#CFB4E5
oklch(80.9% 0.074 309.6)
-
Step 400
400
#B68CD7
oklch(70.7% 0.115 309.3)
-
Step 500
500
#A46DCC
oklch(63.1% 0.148 309.5)
-
Step 600
600
#8F53B9
oklch(55.6% 0.161 309.3)
-
Step 700
700
#7A439F
oklch(49.1% 0.149 309.6)
-
Step 800
800
#633881
oklch(42.7% 0.123 309.3)
-
Step 900
900 (this color)
#513168
oklch(37.8% 0.097 309.4)
-
Step 950
950
#2F1D3D
oklch(27% 0.062 308.8)
#513168 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) | #233D6A | 0.077 |
| Deuteranopia (no green cones) | #2C3F67 | 0.069 |
| Tritanopia (no blue cones) | #4E3A47 | 0.069 |
| Achromatopsia (no color) | #3F3F3F | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513168
#513168
oklch(37.8% 0.097 309.4)
- #314B05
#314B05
oklch(37.8% 0.097 129.2)
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 #513168, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.064
- Grape Purple #5D1451 ΔE 0.069
- Blueberry #464196 ΔE 0.084
- Royal Purple #4B006E ΔE 0.087
- Rebecca Purple #663399 ΔE 0.090
- Plum Purple #4E0550 ΔE 0.091
- Dark Grey Blue #29465B ΔE 0.091
- Prussian Blue #1D3557 ΔE 0.092
Use #513168 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.