#573F47
Closest named color: Purple Brown (#673A3F). oklch(39.7% 0.036 357.1), rgb(87, 63, 71).
Aa
White text reads best on this color (9.51:1).
About this color
#573F47 is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.036 and its hue 357°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.032 away. White text reads best on it, at 9.51:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #573F47 |
| RGB | rgb(87, 63, 71) |
| HSL | hsl(340, 16%, 29%) |
| OKLCH | oklch(39.7% 0.036 357.1) |
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 #573F47 | 9.51:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #573F47 | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #573F47 text on white | 9.51:1 | AAA | Lc 92.0 | Preferred for body text |
| #573F47 text on black | 2.20:1 | Fails | Lc -10.4 | 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
#EEE8EA
oklch(93.6% 0.007 354.8)
-
Step 200
200
#E2D5D9
oklch(88.5% 0.015 356.7)
-
Step 300
300
#D0BAC1
oklch(81% 0.027 356.5)
-
Step 400
400
#B896A1
oklch(70.7% 0.043 356.9)
-
Step 500
500
#A57C8A
oklch(63.1% 0.054 356.5)
-
Step 600
600
#906574
oklch(55.6% 0.059 356.5)
-
Step 700
700
#7B5461
oklch(49.2% 0.055 357.6)
-
Step 800
800
#64454F
oklch(42.8% 0.045 358.1)
-
Step 900
900 (this color)
#573F47
oklch(39.7% 0.036 357.1)
-
Step 950
950
#302227
oklch(27.1% 0.023 355.5)
#573F47 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) | #424347 | 0.038 |
| Deuteranopia (no green cones) | #474746 | 0.036 |
| Tritanopia (no blue cones) | #5B3E42 | 0.010 |
| Achromatopsia (no color) | #454545 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573F47
#573F47
oklch(39.7% 0.036 357.1)
- #324D46
#324D46
oklch(39.6% 0.035 176.4)
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 #573F47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.032
- Charcoal Grey #3C4142 ΔE 0.049
- Brownish Purple #76424E ΔE 0.062
- Onyx #343A40 ΔE 0.066
- Dark Slate Gray #2F4F4F ΔE 0.073
- Dark Grey Blue #29465B ΔE 0.075
- Charcoal #264653 ΔE 0.075
- Mud Brown #60460F ΔE 0.083
Use #573F47 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.