#573B62
Closest named color: Purple Brown (#673A3F). oklch(40% 0.072 316.1), rgb(87, 59, 98).
Aa
White text reads best on this color (9.51:1).
About this color
#573B62 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.072 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.066 away. White text reads best on it, at 9.51:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #573B62 |
| RGB | rgb(87, 59, 98) |
| HSL | hsl(283, 25%, 31%) |
| OKLCH | oklch(40% 0.072 316.1) |
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 #573B62 | 9.51:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #573B62 | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #573B62 text on white | 9.51:1 | AAA | Lc 91.9 | Preferred for body text |
| #573B62 text on black | 2.20:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EEE7F1
oklch(93.6% 0.015 316)
-
Step 200
200
#E1D3E7
oklch(88.4% 0.031 315.9)
-
Step 300
300
#CFB6D9
oklch(80.9% 0.056 316.3)
-
Step 400
400
#B690C5
oklch(70.7% 0.086 316.3)
-
Step 500
500
#A474B7
oklch(63.2% 0.111 316)
-
Step 600
600
#8F5BA2
oklch(55.6% 0.121 316.6)
-
Step 700
700
#794B8B
oklch(49.1% 0.111 315.9)
-
Step 800
800
#633E71
oklch(42.8% 0.092 316.3)
-
Step 900
900 (this color)
#573B62
oklch(40% 0.072 316.1)
-
Step 950
950
#2F1F35
oklch(26.9% 0.045 316.5)
#573B62 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) | #354463 | 0.060 |
| Deuteranopia (no green cones) | #3C4661 | 0.054 |
| Tritanopia (no blue cones) | #57404A | 0.048 |
| Achromatopsia (no color) | #454545 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573B62
#573B62
oklch(40% 0.072 316.1)
- #355128
#355128
oklch(40.1% 0.073 136.5)
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 #573B62, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.073
- Brownish Purple #76424E ΔE 0.076
- Dusk #4E5481 ΔE 0.077
- Dark Grey Blue #29465B ΔE 0.079
- Dusty Grape #545775 ΔE 0.079
- Charcoal Grey #3C4142 ΔE 0.080
- Twilight #4E518B ΔE 0.081
Use #573B62 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.