#573C45
Closest named color: Purple Brown (#673A3F). oklch(39% 0.04 357.4), rgb(87, 60, 69).
Aa
White text reads best on this color (9.82:1).
About this color
#573C45 is a dark, muted red. In OKLCH its lightness is 39%, its chroma 0.040 and its hue 357°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.031 away. White text reads best on it, at 9.82:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.13:1 |
| White text | 9.82:1 |
Values
| HEX | #573C45 |
| RGB | rgb(87, 60, 69) |
| HSL | hsl(340, 18%, 29%) |
| OKLCH | oklch(39% 0.04 357.4) |
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 #573C45 | 9.82:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #573C45 | 2.13:1 | Fails | Lc 11.2 | Not readable |
| #573C45 text on white | 9.82:1 | AAA | Lc 92.7 | Preferred for body text |
| #573C45 text on black | 2.13:1 | Fails | Lc -9.7 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EFE7EA
oklch(93.5% 0.01 352.4)
-
Step 200
200
#E3D5D9
oklch(88.5% 0.016 358.1)
-
Step 300
300
#D2B9C1
oklch(80.9% 0.03 356.5)
-
Step 400
400
#BB95A1
oklch(70.8% 0.048 357.6)
-
Step 500
500
#A97A8A
oklch(63.1% 0.062 356.9)
-
Step 600
600
#946373
oklch(55.7% 0.067 358.3)
-
Step 700
700
#7E5261
oklch(49.2% 0.062 357.6)
-
Step 800
800
#66434F
oklch(42.7% 0.051 357.3)
-
Step 900
900 (this color)
#573C45
oklch(39% 0.04 357.4)
-
Step 950
950
#312126
oklch(26.9% 0.026 358.5)
#573C45 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) | #3F4145 | 0.044 |
| Deuteranopia (no green cones) | #454544 | 0.041 |
| Tritanopia (no blue cones) | #5B3B3F | 0.012 |
| Achromatopsia (no color) | #434343 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573C45
#573C45
oklch(39% 0.04 357.4)
- #2C4C45
#2C4C45
oklch(38.9% 0.04 178.6)
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 #573C45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.031
- Charcoal Grey #3C4142 ΔE 0.050
- Onyx #343A40 ΔE 0.064
- Brownish Purple #76424E ΔE 0.065
- Dark Grey Blue #29465B ΔE 0.077
- Charcoal #264653 ΔE 0.078
- Dark Slate Gray #2F4F4F ΔE 0.078
- Mud Brown #60460F ΔE 0.086
Use #573C45 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.