#523571
Closest named color: Dark Slate Blue (#483D8B). oklch(39.2% 0.102 304.4), rgb(82, 53, 113).
Aa
White text reads best on this color (9.96:1).
About this color
#523571 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.102 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.048 away. White text reads best on it, at 9.96:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.10:1 |
| White text | 9.96:1 |
Values
| HEX | #523571 |
| RGB | rgb(82, 53, 113) |
| HSL | hsl(269, 36%, 33%) |
| OKLCH | oklch(39.2% 0.102 304.4) |
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 #523571 | 9.96:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #523571 | 2.10:1 | Fails | Lc 11.0 | Not readable |
| #523571 text on white | 9.96:1 | AAA | Lc 92.9 | Preferred for body text |
| #523571 text on black | 2.10:1 | Fails | Lc -9.5 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE6F6
oklch(93.5% 0.023 305.6)
-
Step 200
200
#DFD3F0
oklch(88.5% 0.041 304.3)
-
Step 300
300
#CBB5E9
oklch(80.9% 0.076 304)
-
Step 400
400
#B28CDE
oklch(70.7% 0.123 304.8)
-
Step 500
500
#9F6ED5
oklch(63.2% 0.156 304.3)
-
Step 600
600
#8A53C2
oklch(55.6% 0.17 304.3)
-
Step 700
700
#7543A7
oklch(49.1% 0.157 304.3)
-
Step 800
800
#5F3888
oklch(42.7% 0.131 303.9)
-
Step 900
900 (this color)
#523571
oklch(39.2% 0.102 304.4)
-
Step 950
950
#2E1D40
oklch(27% 0.066 304.8)
#523571 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) | #234273 | 0.076 |
| Deuteranopia (no green cones) | #2B4370 | 0.069 |
| Tritanopia (no blue cones) | #4D404E | 0.075 |
| Achromatopsia (no color) | #434343 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523571
#523571
oklch(39.2% 0.102 304.4)
- #3A4E00
#3A4E00
oklch(39.3% 0.098 124.7)
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 #523571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.048
- Blueberry #464196 ΔE 0.068
- Rebecca Purple #663399 ΔE 0.076
- Twilight #4E518B ΔE 0.080
- Grape Purple #5D1451 ΔE 0.083
- Dusk #4E5481 ΔE 0.085
- Dark Grey Blue #29465B ΔE 0.092
- Cobalt #1E488F ΔE 0.092
Use #523571 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.