#523D63
Closest named color: Dark Grey Blue (#29465B). oklch(39.9% 0.067 308.9), rgb(82, 61, 99).
Aa
White text reads best on this color (9.51:1).
About this color
#523D63 is a dark, muted purple. In OKLCH its lightness is 40%, its chroma 0.067 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.069 away. White text reads best on it, at 9.51:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #523D63 |
| RGB | rgb(82, 61, 99) |
| HSL | hsl(273, 24%, 31%) |
| OKLCH | oklch(39.9% 0.067 308.9) |
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 #523D63 | 9.51:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #523D63 | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #523D63 text on white | 9.51:1 | AAA | Lc 92.0 | Preferred for body text |
| #523D63 text on black | 2.20:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F1
oklch(93.6% 0.015 312.2)
-
Step 200
200
#DED4E8
oklch(88.4% 0.029 308.1)
-
Step 300
300
#CAB8DA
oklch(80.8% 0.051 309)
-
Step 400
400
#AF93C7
oklch(70.7% 0.08 308.9)
-
Step 500
500
#9C78B9
oklch(63.2% 0.103 309.1)
-
Step 600
600
#8660A5
oklch(55.6% 0.111 308.5)
-
Step 700
700
#724F8D
oklch(49.2% 0.103 309)
-
Step 800
800
#5D4173
oklch(42.8% 0.086 308.9)
-
Step 900
900 (this color)
#523D63
oklch(39.9% 0.067 308.9)
-
Step 950
950
#2C2036
oklch(26.8% 0.043 308.7)
#523D63 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) | #364564 | 0.049 |
| Deuteranopia (no green cones) | #3A4662 | 0.046 |
| Tritanopia (no blue cones) | #50424B | 0.048 |
| Achromatopsia (no color) | #454545 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523D63
#523D63
oklch(39.9% 0.067 308.9)
- #3C4E26
#3C4E26
oklch(39.8% 0.066 128.9)
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 #523D63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.069
- Dark Slate Blue #483D8B ΔE 0.070
- Purple Brown #673A3F ΔE 0.070
- Dusk #4E5481 ΔE 0.073
- Charcoal Grey #3C4142 ΔE 0.074
- Dusty Grape #545775 ΔE 0.075
- Twilight #4E518B ΔE 0.077
- Charcoal #264653 ΔE 0.079
Use #523D63 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.