#523B77
Closest named color: Dark Slate Blue (#483D8B). oklch(40.7% 0.1 299.7), rgb(82, 59, 119).
Aa
White text reads best on this color (9.33:1).
About this color
#523B77 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.100 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.037 away. White text reads best on it, at 9.33:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.33:1 |
Values
| HEX | #523B77 |
| RGB | rgb(82, 59, 119) |
| HSL | hsl(263, 34%, 35%) |
| OKLCH | oklch(40.7% 0.1 299.7) |
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 #523B77 | 9.33:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #523B77 | 2.25:1 | Fails | Lc 12.6 | Not readable |
| #523B77 text on white | 9.33:1 | AAA | Lc 91.4 | Preferred for body text |
| #523B77 text on black | 2.25:1 | Fails | Lc -11.0 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F4
oklch(93.7% 0.016 297.5)
-
Step 200
200
#DCD5EC
oklch(88.6% 0.032 299.6)
-
Step 300
300
#C6B9E1
oklch(81% 0.057 300)
-
Step 400
400
#A994D3
oklch(70.8% 0.093 299.3)
-
Step 500
500
#9478C7
oklch(63.1% 0.119 299.3)
-
Step 600
600
#7F5FB3
oklch(55.5% 0.13 299.8)
-
Step 700
700
#6B4E9A
oklch(49% 0.12 299.6)
-
Step 800
800 (this color)
#523B77
oklch(40.7% 0.1 299.7)
-
Step 900
900
#483765
oklch(37.7% 0.079 299.7)
-
Step 950
950
#2A213B
oklch(27.1% 0.048 299.1)
#523B77 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) | #284779 | 0.067 |
| Deuteranopia (no green cones) | #2D4676 | 0.061 |
| Tritanopia (no blue cones) | #4B4653 | 0.077 |
| Achromatopsia (no color) | #474747 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523B77
#523B77
oklch(40.7% 0.1 299.7)
- #445000
#445000
oklch(40.6% 0.096 119.1)
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 #523B77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Blueberry #464196 ΔE 0.055
- Twilight #4E518B ΔE 0.063
- Dusk #4E5481 ΔE 0.068
- Rebecca Purple #663399 ΔE 0.070
- Cobalt #1E488F ΔE 0.081
- Dusty Grape #545775 ΔE 0.082
- Dusk Blue #26538D ΔE 0.085
Use #523B77 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.