#523D87
Closest named color: Dark Slate Blue (#483D8B). oklch(42.1% 0.119 293.7), rgb(82, 61, 135).
Aa
White text reads best on this color (8.83:1).
About this color
#523D87 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.119 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.019 away. White text reads best on it, at 8.83:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.37:1 |
| White text | 8.83:1 |
Values
| HEX | #523D87 |
| RGB | rgb(82, 61, 135) |
| HSL | hsl(257, 38%, 38%) |
| OKLCH | oklch(42.1% 0.119 293.7) |
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 #523D87 | 8.83:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #523D87 | 2.37:1 | Fails | Lc 14.0 | Not readable |
| #523D87 text on white | 8.83:1 | AAA | Lc 90.0 | Fine for body text |
| #523D87 text on black | 2.37:1 | Fails | Lc -12.3 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#EAE8F6
oklch(93.7% 0.019 292.6)
-
Step 200
200
#DAD5F1
oklch(88.6% 0.038 293.8)
-
Step 300
300
#C2B9EA
oklch(81% 0.069 293.2)
-
Step 400
400
#A493DF
oklch(70.7% 0.11 293.7)
-
Step 500
500
#8F76D6
oklch(63.1% 0.142 293.9)
-
Step 600
600
#7A5DC4
oklch(55.7% 0.155 293.7)
-
Step 700
700
#674CA9
oklch(49.2% 0.143 293.9)
-
Step 800
800 (this color)
#523D87
oklch(42.1% 0.119 293.7)
-
Step 900
900
#45366D
oklch(37.7% 0.092 294.1)
-
Step 950
950
#282040
oklch(27% 0.059 293.6)
#523D87 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) | #1D4B8A | 0.074 |
| Deuteranopia (no green cones) | #224985 | 0.070 |
| Tritanopia (no blue cones) | #454C5C | 0.095 |
| Achromatopsia (no color) | #4A4A4A | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523D87
#523D87
oklch(42.1% 0.119 293.7)
- #4D5200
#4D5200
oklch(42% 0.094 113.8)
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 #523D87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.019
- Blueberry #464196 ΔE 0.032
- Rebecca Purple #663399 ΔE 0.051
- Twilight #4E518B ΔE 0.053
- Dusk #4E5481 ΔE 0.066
- Cobalt #1E488F ΔE 0.072
- Dusk Blue #26538D ΔE 0.077
- Denim Blue #3B5B92 ΔE 0.083
Use #523D87 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.