#513D9E
Closest named color: Blueberry (#464196). oklch(43.7% 0.151 288), rgb(81, 61, 158).
Aa
White text reads best on this color (8.36:1).
About this color
#513D9E is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.151 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.024 away. White text reads best on it, at 8.36:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.51:1 |
| White text | 8.36:1 |
Values
| HEX | #513D9E |
| RGB | rgb(81, 61, 158) |
| HSL | hsl(252, 44%, 43%) |
| OKLCH | oklch(43.7% 0.151 288) |
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 #513D9E | 8.36:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #513D9E | 2.51:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #513D9E text on white | 8.36:1 | AAA | Lc 88.5 | Fine for body text |
| #513D9E text on black | 2.51:1 | Fails | Lc -13.7 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D7D5F8
oklch(88.6% 0.048 288)
-
Step 300
300
#BDB8F7
oklch(80.9% 0.088 287.9)
-
Step 400
400
#9D91F3
oklch(70.8% 0.141 287.9)
-
Step 500
500
#8772EE
oklch(63.1% 0.179 287.9)
-
Step 600
600
#7356DC
oklch(55.6% 0.195 288.3)
-
Step 700
700
#6045BF
oklch(49% 0.182 287.9)
-
Step 800
800 (this color)
#513D9E
oklch(43.7% 0.151 288)
-
Step 900
900
#41337B
oklch(37.7% 0.117 288.4)
-
Step 950
950
#261F48
oklch(27.1% 0.074 288.3)
#513D9E 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) | #0050A1 | 0.084 |
| Deuteranopia (no green cones) | #004B9C | 0.082 |
| Tritanopia (no blue cones) | #375367 | 0.124 |
| Achromatopsia (no color) | #4E4E4E | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513D9E
#513D9E
oklch(43.7% 0.151 288)
- #575500
#575500
oklch(43.7% 0.094 108.2)
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 #513D9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.024
- Dark Slate Blue #483D8B ΔE 0.035
- Rebecca Purple #663399 ΔE 0.043
- Twilight #4E518B ΔE 0.064
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Bluey Purple #6241C7 ΔE 0.072
- Blurple #5539CC ΔE 0.074
- Sapphire #2138AB ΔE 0.074
Use #513D9E 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.