#523F99
Closest named color: Blueberry (#464196). oklch(43.8% 0.141 288.9), rgb(82, 63, 153).
Aa
White text reads best on this color (8.30:1).
About this color
#523F99 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.141 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.021 away. White text reads best on it, at 8.30:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.52:1 |
| White text | 8.30:1 |
Values
| HEX | #523F99 |
| RGB | rgb(82, 63, 153) |
| HSL | hsl(253, 42%, 42%) |
| OKLCH | oklch(43.8% 0.141 288.9) |
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 #523F99 | 8.30:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #523F99 | 2.52:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #523F99 text on white | 8.30:1 | AAA | Lc 88.3 | Fine for body text |
| #523F99 text on black | 2.52:1 | Fails | Lc -13.8 | 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
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D7D5F6
oklch(88.5% 0.045 288.2)
-
Step 300
300
#BEB8F3
oklch(80.8% 0.083 289.1)
-
Step 400
400
#9E92ED
oklch(70.7% 0.131 288.6)
-
Step 500
500
#8874E7
oklch(63.1% 0.167 288.7)
-
Step 600
600
#7459D5
oklch(55.6% 0.182 289.1)
-
Step 700
700
#6148B9
oklch(49.1% 0.17 288.7)
-
Step 800
800 (this color)
#523F99
oklch(43.8% 0.141 288.9)
-
Step 900
900
#413477
oklch(37.6% 0.11 288.9)
-
Step 950
950
#261F46
oklch(27% 0.07 289.1)
#523F99 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) | #00509C | 0.084 |
| Deuteranopia (no green cones) | #044C97 | 0.082 |
| Tritanopia (no blue cones) | #3C5366 | 0.115 |
| Achromatopsia (no color) | #4E4E4E | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523F99
#523F99
oklch(43.8% 0.141 288.9)
- #565500
#565500
oklch(43.6% 0.095 109)
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 #523F99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.021
- Dark Slate Blue #483D8B ΔE 0.029
- Rebecca Purple #663399 ΔE 0.043
- Twilight #4E518B ΔE 0.055
- Cobalt #1E488F ΔE 0.072
- Blue With A Hint Of Purple #533CC6 ΔE 0.072
- Dusk #4E5481 ΔE 0.074
- Dusk Blue #26538D ΔE 0.078
Use #523F99 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.