#573B56
Closest named color: Purple Brown (#673A3F). oklch(39.5% 0.057 327.8), rgb(87, 59, 86).
Aa
White text reads best on this color (9.69:1).
About this color
#573B56 is a dark, muted purple. In OKLCH its lightness is 39%, its chroma 0.057 and its hue 328°. 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 9.69:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | muted (0.057) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.16:1 |
| White text | 9.69:1 |
Values
| HEX | #573B56 |
| RGB | rgb(87, 59, 86) |
| HSL | hsl(302, 19%, 29%) |
| OKLCH | oklch(39.5% 0.057 327.8) |
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 #573B56 | 9.69:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #573B56 | 2.16:1 | Fails | Lc 11.5 | Not readable |
| #573B56 text on white | 9.69:1 | AAA | Lc 92.4 | Preferred for body text |
| #573B56 text on black | 2.16:1 | Fails | Lc -10.0 | 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
#E2D4E1
oklch(88.5% 0.023 328)
-
Step 300
300
#D0B7CF
oklch(80.8% 0.043 327.2)
-
Step 400
400
#B992B7
oklch(70.8% 0.069 327.9)
-
Step 500
500
#A776A5
oklch(63.1% 0.089 327.9)
-
Step 600
600
#915E90
oklch(55.5% 0.096 327.4)
-
Step 700
700
#7C4E7A
oklch(49.2% 0.088 328.3)
-
Step 800
800
#654064
oklch(42.8% 0.074 327.7)
-
Step 900
900 (this color)
#573B56
oklch(39.5% 0.057 327.8)
-
Step 950
950
#302030
oklch(27% 0.037 326.5)
#573B56 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) | #394257 | 0.053 |
| Deuteranopia (no green cones) | #404655 | 0.050 |
| Tritanopia (no blue cones) | #593D45 | 0.032 |
| Achromatopsia (no color) | #444444 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573B56
#573B56
oklch(39.5% 0.057 327.8)
- #304F34
#304F34
oklch(39.5% 0.058 147.5)
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 #573B56, 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 0.068
- Onyx #343A40 ΔE 0.075
- Dark Grey Blue #29465B ΔE 0.075
- Charcoal #264653 ΔE 0.081
- Dusty Grape #545775 ΔE 0.084
- Dark Slate Gray #2F4F4F ΔE 0.088
Use #573B56 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.