#523A70
Closest named color: Dark Slate Blue (#483D8B). oklch(40.1% 0.092 303), rgb(82, 58, 112).
Aa
White text reads best on this color (9.55:1).
About this color
#523A70 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.092 and its hue 303°. 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 9.55:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.55:1 |
Values
| HEX | #523A70 |
| RGB | rgb(82, 58, 112) |
| HSL | hsl(267, 32%, 33%) |
| OKLCH | oklch(40.1% 0.092 303) |
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 #523A70 | 9.55:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #523A70 | 2.19:1 | Fails | Lc 12.0 | Not readable |
| #523A70 text on white | 9.55:1 | AAA | Lc 92.0 | Preferred for body text |
| #523A70 text on black | 2.19:1 | Fails | Lc -10.4 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DED4EE
oklch(88.6% 0.037 303.1)
-
Step 300
300
#C9B6E6
oklch(80.8% 0.07 302.9)
-
Step 400
400
#AE8FD9
oklch(70.6% 0.11 302.9)
-
Step 500
500
#9B72CF
oklch(63.1% 0.141 302.9)
-
Step 600
600
#8658BB
oklch(55.5% 0.153 303.2)
-
Step 700
700
#7248A2
oklch(49.2% 0.142 303.1)
-
Step 800
800
#5C3C83
oklch(42.7% 0.117 302.6)
-
Step 900
900 (this color)
#523A70
oklch(40.1% 0.092 303)
-
Step 950
950
#2C1F3E
oklch(27.1% 0.058 302)
#523A70 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) | #2B4572 | 0.064 |
| Deuteranopia (no green cones) | #31456F | 0.058 |
| Tritanopia (no blue cones) | #4D434F | 0.069 |
| Achromatopsia (no color) | #454545 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523A70
#523A70
oklch(40.1% 0.092 303)
- #3F4F0B
#3F4F0B
oklch(40% 0.091 122.6)
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 #523A70, 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 0.066
- Twilight #4E518B ΔE 0.070
- Dusk #4E5481 ΔE 0.073
- Rebecca Purple #663399 ΔE 0.079
- Dusty Grape #545775 ΔE 0.083
- Dark Grey Blue #29465B ΔE 0.083
- Cobalt #1E488F ΔE 0.087
Use #523A70 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.