#573A55
Closest named color: Purple Brown (#673A3F). oklch(39.2% 0.058 329), rgb(87, 58, 85).
Aa
White text reads best on this color (9.80:1).
About this color
#573A55 is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.058 and its hue 329°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.048 away. White text reads best on it, at 9.80:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.14:1 |
| White text | 9.80:1 |
Values
| HEX | #573A55 |
| RGB | rgb(87, 58, 85) |
| HSL | hsl(304, 20%, 28%) |
| OKLCH | oklch(39.2% 0.058 329) |
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 #573A55 | 9.80:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #573A55 | 2.14:1 | Fails | Lc 11.3 | Not readable |
| #573A55 text on white | 9.80:1 | AAA | Lc 92.7 | Preferred for body text |
| #573A55 text on black | 2.14:1 | Fails | Lc -9.8 | 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#EFE7EE
oklch(93.6% 0.013 329.6)
-
Step 200
200
#E3D4E1
oklch(88.6% 0.024 330)
-
Step 300
300
#D1B7CF
oklch(80.9% 0.044 328.4)
-
Step 400
400
#BA91B6
oklch(70.7% 0.071 329.6)
-
Step 500
500
#A876A4
oklch(63.2% 0.089 329.3)
-
Step 600
600
#935E8F
oklch(55.7% 0.097 329.4)
-
Step 700
700
#7D4D7A
oklch(49.1% 0.091 329.1)
-
Step 800
800
#653F63
oklch(42.6% 0.075 328.6)
-
Step 900
900 (this color)
#573A55
oklch(39.2% 0.058 329)
-
Step 950
950
#31202F
oklch(27.1% 0.037 330.6)
#573A55 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) | #394156 | 0.054 |
| Deuteranopia (no green cones) | #404554 | 0.050 |
| Tritanopia (no blue cones) | #593C44 | 0.032 |
| Achromatopsia (no color) | #444444 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573A55
#573A55
oklch(39.2% 0.058 329)
- #2E4E34
#2E4E34
oklch(39.1% 0.058 149.1)
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 #573A55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.065
- Brownish Purple #76424E ΔE 0.069
- Onyx #343A40 ΔE 0.074
- Dark Grey Blue #29465B ΔE 0.076
- Charcoal #264653 ΔE 0.082
- Grape Purple #5D1451 ΔE 0.086
- Dusty Grape #545775 ΔE 0.087
Use #573A55 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.