#573F4F
Closest named color: Purple Brown (#673A3F). oklch(40% 0.042 339.2), rgb(87, 63, 79).
Aa
White text reads best on this color (9.42:1).
About this color
#573F4F is a dark, muted purple. In OKLCH its lightness is 40%, its chroma 0.042 and its hue 339°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.038 away. White text reads best on it, at 9.42:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #573F4F |
| RGB | rgb(87, 63, 79) |
| HSL | hsl(320, 16%, 29%) |
| OKLCH | oklch(40% 0.042 339.2) |
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 #573F4F | 9.42:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #573F4F | 2.22:1 | Fails | Lc 12.2 | Not readable |
| #573F4F text on white | 9.42:1 | AAA | Lc 91.7 | Preferred for body text |
| #573F4F text on black | 2.22:1 | Fails | Lc -10.6 | 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
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EEE8EC
oklch(93.7% 0.008 337.4)
-
Step 200
200
#E1D5DD
oklch(88.5% 0.017 337.6)
-
Step 300
300
#CFB9C7
oklch(80.8% 0.031 339.4)
-
Step 400
400
#B695AB
oklch(70.7% 0.05 338.6)
-
Step 500
500
#A47B96
oklch(63.2% 0.063 339.5)
-
Step 600
600
#8F6381
oklch(55.6% 0.071 338.9)
-
Step 700
700
#79526D
oklch(49% 0.065 338.6)
-
Step 800
800
#634359
oklch(42.7% 0.055 338.7)
-
Step 900
900 (this color)
#573F4F
oklch(40% 0.042 339.2)
-
Step 950
950
#2F212B
oklch(26.9% 0.027 337.1)
#573F4F 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) | #404450 | 0.041 |
| Deuteranopia (no green cones) | #45474E | 0.038 |
| Tritanopia (no blue cones) | #5A3F44 | 0.019 |
| Achromatopsia (no color) | #464646 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573F4F
#573F4F
oklch(40% 0.042 339.2)
- #344F40
#344F40
oklch(40.1% 0.041 159.5)
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 #573F4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.054
- Brownish Purple #76424E ΔE 0.061
- Onyx #343A40 ΔE 0.070
- Dark Grey Blue #29465B ΔE 0.072
- Charcoal #264653 ΔE 0.075
- Dark Slate Gray #2F4F4F ΔE 0.075
- Dusty Grape #545775 ΔE 0.080
Use #573F4F 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.