#523B81
Closest named color: Dark Slate Blue (#483D8B). oklch(41.3% 0.114 296.2), rgb(82, 59, 129).
Aa
White text reads best on this color (9.12:1).
About this color
#523B81 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.114 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.024 away. White text reads best on it, at 9.12:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.30:1 |
| White text | 9.12:1 |
Values
| HEX | #523B81 |
| RGB | rgb(82, 59, 129) |
| HSL | hsl(260, 37%, 37%) |
| OKLCH | oklch(41.3% 0.114 296.2) |
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 #523B81 | 9.12:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #523B81 | 2.30:1 | Fails | Lc 13.2 | Not readable |
| #523B81 text on white | 9.12:1 | AAA | Lc 90.8 | Preferred for body text |
| #523B81 text on black | 2.30:1 | Fails | Lc -11.5 | 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 800.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#EBE7F6
oklch(93.5% 0.021 298.2)
-
Step 200
200
#DBD5EF
oklch(88.6% 0.036 296.2)
-
Step 300
300
#C4B8E7
oklch(80.8% 0.067 296.6)
-
Step 400
400
#A793DB
oklch(70.8% 0.105 296.4)
-
Step 500
500
#9276D2
oklch(63.1% 0.137 296.3)
-
Step 600
600
#7D5DBF
oklch(55.7% 0.148 296.3)
-
Step 700
700
#694CA4
oklch(49% 0.137 296.2)
-
Step 800
800 (this color)
#523B81
oklch(41.3% 0.114 296.2)
-
Step 900
900
#46366B
oklch(37.7% 0.089 295.7)
-
Step 950
950
#29203F
oklch(27% 0.057 295.7)
#523B81 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) | #1F4983 | 0.074 |
| Deuteranopia (no green cones) | #25477F | 0.069 |
| Tritanopia (no blue cones) | #474958 | 0.090 |
| Achromatopsia (no color) | #484848 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523B81
#523B81
oklch(41.3% 0.114 296.2)
- #495100
#495100
oklch(41.3% 0.095 116.1)
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 #523B81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.024
- Blueberry #464196 ΔE 0.041
- Rebecca Purple #663399 ΔE 0.056
- Twilight #4E518B ΔE 0.059
- Dusk #4E5481 ΔE 0.069
- Cobalt #1E488F ΔE 0.075
- Dusk Blue #26538D ΔE 0.082
- Dusty Grape #545775 ΔE 0.087
Use #523B81 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.