#513993
Closest named color: Dark Slate Blue (#483D8B). oklch(42.2% 0.142 291.4), rgb(81, 57, 147).
Aa
White text reads best on this color (8.91:1).
About this color
#513993 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.142 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.022 away. White text reads best on it, at 8.91:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.35:1 |
| White text | 8.91:1 |
Values
| HEX | #513993 |
| RGB | rgb(81, 57, 147) |
| HSL | hsl(256, 44%, 40%) |
| OKLCH | oklch(42.2% 0.142 291.4) |
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 #513993 | 8.91:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #513993 | 2.35:1 | Fails | Lc 13.9 | Not readable |
| #513993 text on white | 8.91:1 | AAA | Lc 90.1 | Preferred for body text |
| #513993 text on black | 2.35:1 | Fails | Lc -12.2 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D4F6
oklch(88.5% 0.047 292.2)
-
Step 300
300
#C1B8F2
oklch(81% 0.081 291.6)
-
Step 400
400
#A290EC
oklch(70.6% 0.133 291.6)
-
Step 500
500
#8D72E6
oklch(63.1% 0.169 291.5)
-
Step 600
600
#7857D4
oklch(55.6% 0.184 291.4)
-
Step 700
700
#6546B8
oklch(49.1% 0.172 291.3)
-
Step 800
800 (this color)
#513993
oklch(42.2% 0.142 291.4)
-
Step 900
900
#443376
oklch(37.6% 0.11 291.9)
-
Step 950
950
#271F45
oklch(27% 0.069 290.8)
#513993 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) | #004B96 | 0.087 |
| Deuteranopia (no green cones) | #004891 | 0.087 |
| Tritanopia (no blue cones) | #3E4D60 | 0.114 |
| Achromatopsia (no color) | #4A4A4A | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513993
#513993
oklch(42.2% 0.142 291.4)
- #505200
#505200
oklch(42.3% 0.093 111.4)
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 #513993, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.022
- Blueberry #464196 ΔE 0.025
- Rebecca Purple #663399 ΔE 0.041
- Twilight #4E518B ΔE 0.065
- Cobalt #1E488F ΔE 0.074
- Chrysanthemum #560BAD ΔE 0.076
- Imperial Purple #480CA8 ΔE 0.079
- Sapphire #2138AB ΔE 0.080
Use #513993 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.