#573A33
Closest named color: Purple Brown (#673A3F). oklch(38% 0.043 34.1), rgb(87, 58, 51).
Aa
White text reads best on this color (10.20:1).
About this color
#573A33 is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.043 and its hue 34°. 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 10.20:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.05:1 |
| White text | 10.20:1 |
Values
| HEX | #573A33 |
| RGB | rgb(87, 58, 51) |
| HSL | hsl(12, 26%, 27%) |
| OKLCH | oklch(38% 0.043 34.1) |
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 #573A33 | 10.20:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #573A33 | 2.05:1 | Fails | Lc 10.3 | Not readable |
| #573A33 text on white | 10.20:1 | AAA | Lc 93.6 | Preferred for body text |
| #573A33 text on black | 2.05:1 | Fails | Lc -8.9 | 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
#F8F4F3
oklch(97% 0.005 34.3)
-
Step 100
100
#F0E8E6
oklch(93.7% 0.009 34.3)
-
Step 200
200
#E5D5D1
oklch(88.5% 0.019 34.3)
-
Step 300
300
#D5BAB3
oklch(81% 0.033 34.9)
-
Step 400
400
#BF958B
oklch(70.6% 0.053 33.7)
-
Step 500
500
#AE7B6F
oklch(63.1% 0.067 33.7)
-
Step 600
600
#996457
oklch(55.7% 0.072 34.4)
-
Step 700
700
#825347
oklch(49.2% 0.066 35)
-
Step 800
800
#6A443B
oklch(42.8% 0.055 33.9)
-
Step 900
900 (this color)
#573A33
oklch(38% 0.043 34.1)
-
Step 950
950
#33221E
oklch(27.2% 0.027 33.7)
#573A33 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) | #413E32 | 0.042 |
| Deuteranopia (no green cones) | #474333 | 0.039 |
| Tritanopia (no blue cones) | #5D3638 | 0.020 |
| Achromatopsia (no color) | #414141 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573A33
#573A33
oklch(38% 0.043 34.1)
- #254850
#254850
oklch(37.9% 0.043 214.2)
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 #573A33, 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 0.051
- Onyx #343A40 ΔE 0.065
- Mud Brown #60460F ΔE 0.066
- Chestnut #742802 ΔE 0.073
- Brownish Purple #76424E ΔE 0.077
- Dark Slate Gray #2F4F4F ΔE 0.083
- Charcoal #264653 ΔE 0.087
Use #573A33 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.