#573564
Closest named color: Dark Slate Blue (#483D8B). oklch(39% 0.087 316.1), rgb(87, 53, 100).
Aa
White text reads best on this color (10.00:1).
About this color
#573564 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.087 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.070 away. White text reads best on it, at 10.00:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.09:1 |
| White text | 10.00:1 |
Values
| HEX | #573564 |
| RGB | rgb(87, 53, 100) |
| HSL | hsl(283, 31%, 30%) |
| OKLCH | oklch(39% 0.087 316.1) |
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 #573564 | 10.00:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #573564 | 2.09:1 | Fails | Lc 10.9 | Not readable |
| #573564 text on white | 10.00:1 | AAA | Lc 93.0 | Preferred for body text |
| #573564 text on black | 2.09:1 | Fails | Lc -9.4 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EFE6F3
oklch(93.6% 0.02 315.7)
-
Step 200
200
#E3D2EA
oklch(88.5% 0.037 316.2)
-
Step 300
300
#D1B4DD
oklch(80.8% 0.065 316)
-
Step 400
400
#BA8CCC
oklch(70.6% 0.104 316.2)
-
Step 500
500
#A96EBF
oklch(63.1% 0.133 316.4)
-
Step 600
600
#9455AB
oklch(55.7% 0.144 316.4)
-
Step 700
700
#7E4493
oklch(49.1% 0.135 316.4)
-
Step 800
800
#663977
oklch(42.7% 0.11 316.1)
-
Step 900
900 (this color)
#573564
oklch(39% 0.087 316.1)
-
Step 950
950
#311D38
oklch(26.9% 0.055 317)
#573564 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) | #2D4066 | 0.073 |
| Deuteranopia (no green cones) | #364363 | 0.066 |
| Tritanopia (no blue cones) | #563C47 | 0.059 |
| Achromatopsia (no color) | #424242 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573564
#573564
oklch(39% 0.087 316.1)
- #2E4F1D
#2E4F1D
oklch(38.9% 0.086 136.3)
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 #573564, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.070
- Grape Purple #5D1451 ΔE 0.072
- Purple Brown #673A3F ΔE 0.076
- Brownish Purple #76424E ΔE 0.088
- Dark Grey Blue #29465B ΔE 0.089
- Blueberry #464196 ΔE 0.089
- Dusk #4E5481 ΔE 0.089
- Twilight #4E518B ΔE 0.090
Use #573564 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.