#573D58
Closest named color: Purple Brown (#673A3F). oklch(40% 0.056 325.3), rgb(87, 61, 88).
Aa
White text reads best on this color (9.48:1).
About this color
#573D58 is a dark, muted purple. In OKLCH its lightness is 40%, its chroma 0.056 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.049 away. White text reads best on it, at 9.48:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | muted (0.056) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #573D58 |
| RGB | rgb(87, 61, 88) |
| HSL | hsl(298, 18%, 29%) |
| OKLCH | oklch(40% 0.056 325.3) |
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 #573D58 | 9.48:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #573D58 | 2.21:1 | Fails | Lc 12.1 | Not readable |
| #573D58 text on white | 9.48:1 | AAA | Lc 91.9 | Preferred for body text |
| #573D58 text on black | 2.21:1 | Fails | Lc -10.5 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EEE7EE
oklch(93.5% 0.012 325.7)
-
Step 200
200
#E1D4E2
oklch(88.5% 0.024 323.6)
-
Step 300
300
#CFB8D0
oklch(80.9% 0.042 324.7)
-
Step 400
400
#B793B8
oklch(70.8% 0.067 325.4)
-
Step 500
500
#A477A6
oklch(63% 0.086 325.1)
-
Step 600
600
#8F6091
oklch(55.7% 0.092 325.3)
-
Step 700
700
#794F7B
oklch(49.1% 0.085 325.2)
-
Step 800
800
#634164
oklch(42.7% 0.071 325.8)
-
Step 900
900 (this color)
#573D58
oklch(40% 0.056 325.3)
-
Step 950
950
#2F2030
oklch(26.9% 0.036 324.4)
#573D58 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) | #3B4459 | 0.050 |
| Deuteranopia (no green cones) | #414757 | 0.046 |
| Tritanopia (no blue cones) | #583F47 | 0.032 |
| Achromatopsia (no color) | #464646 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573D58
#573D58
oklch(40% 0.056 325.3)
- #345035
#345035
oklch(40.1% 0.056 145.3)
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 #573D58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.065
- Brownish Purple #76424E ΔE 0.066
- Dark Grey Blue #29465B ΔE 0.073
- Onyx #343A40 ΔE 0.077
- Dusty Grape #545775 ΔE 0.078
- Charcoal #264653 ΔE 0.080
- Dusk #4E5481 ΔE 0.082
Use #573D58 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.