#513B9C
Closest named color: Blueberry (#464196). oklch(43.2% 0.151 288.9), rgb(81, 59, 156).
Aa
White text reads best on this color (8.55:1).
About this color
#513B9C is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.151 and its hue 289°. 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 8.55:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.45:1 |
| White text | 8.55:1 |
Values
| HEX | #513B9C |
| RGB | rgb(81, 59, 156) |
| HSL | hsl(254, 45%, 42%) |
| OKLCH | oklch(43.2% 0.151 288.9) |
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 #513B9C | 8.55:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #513B9C | 2.45:1 | Fails | Lc 15.0 | Not readable |
| #513B9C text on white | 8.55:1 | AAA | Lc 89.0 | Fine for body text |
| #513B9C text on black | 2.45:1 | Fails | Lc -13.2 | 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
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D7D5F8
oklch(88.6% 0.048 288)
-
Step 300
300
#BEB8F7
oklch(81% 0.088 288.6)
-
Step 400
400
#9E90F2
oklch(70.6% 0.141 288.8)
-
Step 500
500
#8971EE
oklch(63.1% 0.181 289)
-
Step 600
600
#7456DC
oklch(55.7% 0.195 288.7)
-
Step 700
700
#6245BF
oklch(49.2% 0.182 288.8)
-
Step 800
800 (this color)
#513B9C
oklch(43.2% 0.151 288.9)
-
Step 900
900
#42337B
oklch(37.8% 0.117 289.1)
-
Step 950
950
#261E48
oklch(26.9% 0.075 289.1)
#513B9C 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) | #004E9F | 0.085 |
| Deuteranopia (no green cones) | #004A9A | 0.084 |
| Tritanopia (no blue cones) | #395266 | 0.124 |
| Achromatopsia (no color) | #4C4C4C | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513B9C
#513B9C
oklch(43.2% 0.151 288.9)
- #555400
#555400
oklch(43.3% 0.094 109)
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 #513B9C, 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 0.032
- Rebecca Purple #663399 ΔE 0.041
- Twilight #4E518B ΔE 0.066
- Blue With A Hint Of Purple #533CC6 ΔE 0.067
- Chrysanthemum #560BAD ΔE 0.073
- Sapphire #2138AB ΔE 0.074
- Cobalt #1E488F ΔE 0.075
Use #513B9C 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.