#573D2F
Closest named color: Purple Brown (#673A3F). oklch(38.5% 0.043 49.3), rgb(87, 61, 47).
Aa
White text reads best on this color (9.93:1).
About this color
#573D2F is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.043 and its hue 49°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.043 away. White text reads best on it, at 9.93:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.11:1 |
| White text | 9.93:1 |
Values
| HEX | #573D2F |
| RGB | rgb(87, 61, 47) |
| HSL | hsl(21, 30%, 26%) |
| OKLCH | oklch(38.5% 0.043 49.3) |
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 #573D2F | 9.93:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #573D2F | 2.11:1 | Fails | Lc 11.0 | Not readable |
| #573D2F text on white | 9.93:1 | AAA | Lc 93.0 | Preferred for body text |
| #573D2F text on black | 2.11:1 | Fails | Lc -9.5 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E4
oklch(93.5% 0.009 52.1)
-
Step 200
200
#E4D6CF
oklch(88.5% 0.018 48.5)
-
Step 300
300
#D3BBAF
oklch(80.9% 0.032 48.3)
-
Step 400
400
#BC9884
oklch(70.7% 0.052 50.6)
-
Step 500
500
#AB7E66
oklch(63.1% 0.066 49.2)
-
Step 600
600
#96674D
oklch(55.7% 0.072 49.7)
-
Step 700
700
#80553E
oklch(49.1% 0.067 48.8)
-
Step 800
800
#684633
oklch(42.7% 0.056 49.9)
-
Step 900
900 (this color)
#573D2F
oklch(38.5% 0.043 49.3)
-
Step 950
950
#32231A
oklch(27.2% 0.028 52.1)
#573D2F 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) | #443F2E | 0.035 |
| Deuteranopia (no green cones) | #4A452F | 0.033 |
| Tritanopia (no blue cones) | #5E3839 | 0.028 |
| Achromatopsia (no color) | #434343 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573D2F
#573D2F
oklch(38.5% 0.043 49.3)
- #2A4856
#2A4856
oklch(38.4% 0.043 229.4)
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 #573D2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.052
- Mud Brown #60460F ΔE 0.054
- Onyx #343A40 ΔE 0.069
- Chestnut #742802 ΔE 0.073
- Green Brown #544E03 ΔE 0.078
- Brownish Purple #76424E ΔE 0.079
- Dark Slate Gray #2F4F4F ΔE 0.080
Use #573D2F 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.