#573C59
Closest named color: Purple Brown (#673A3F). oklch(39.8% 0.059 324.3), rgb(87, 60, 89).
Aa
White text reads best on this color (9.56:1).
About this color
#573C59 is a dark, muted purple. In OKLCH its lightness is 40%, its chroma 0.059 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.052 away. White text reads best on it, at 9.56:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | muted (0.059) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.19:1 |
| White text | 9.56:1 |
Values
| HEX | #573C59 |
| RGB | rgb(87, 60, 89) |
| HSL | hsl(296, 19%, 29%) |
| OKLCH | oklch(39.8% 0.059 324.3) |
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 #573C59 | 9.56:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #573C59 | 2.19:1 | Fails | Lc 11.9 | Not readable |
| #573C59 text on white | 9.56:1 | AAA | Lc 92.1 | Preferred for body text |
| #573C59 text on black | 2.19:1 | Fails | Lc -10.3 | 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
#F7F4F8
oklch(97.1% 0.006 317.8)
-
Step 100
100
#EEE7EF
oklch(93.6% 0.013 321.9)
-
Step 200
200
#E2D4E2
oklch(88.5% 0.024 325.8)
-
Step 300
300
#D0B7D1
oklch(80.9% 0.045 324.8)
-
Step 400
400
#B792BA
oklch(70.7% 0.071 323.9)
-
Step 500
500
#A576A8
oklch(63% 0.091 324.6)
-
Step 600
600
#905F94
oklch(55.7% 0.098 324.2)
-
Step 700
700
#7A4E7E
oklch(49.1% 0.091 323.9)
-
Step 800
800
#634066
oklch(42.6% 0.075 324)
-
Step 900
900 (this color)
#573C59
oklch(39.8% 0.059 324.3)
-
Step 950
950
#302031
oklch(27.1% 0.038 324.6)
#573C59 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) | #3A435A | 0.052 |
| Deuteranopia (no green cones) | #404658 | 0.048 |
| Tritanopia (no blue cones) | #583F46 | 0.036 |
| Achromatopsia (no color) | #454545 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573C59
#573C59
oklch(39.8% 0.059 324.3)
- #335033
#335033
oklch(40% 0.059 144.4)
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 #573C59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.068
- Brownish Purple #76424E ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.075
- Onyx #343A40 ΔE 0.078
- Dusty Grape #545775 ΔE 0.080
- Charcoal #264653 ΔE 0.081
- Dusk #4E5481 ΔE 0.083
Use #573C59 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.