#573901
Closest named color: Mud Brown (#60460F). oklch(37% 0.077 75.6), rgb(87, 57, 1).
Aa
White text reads best on this color (10.54:1).
About this color
#573901 is a dark, moderately saturated brown. In OKLCH its lightness is 37%, its chroma 0.077 and its hue 76°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.043 away. White text reads best on it, at 10.54:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.99:1 |
| White text | 10.54:1 |
Values
| HEX | #573901 |
| RGB | rgb(87, 57, 1) |
| HSL | hsl(39, 98%, 17%) |
| OKLCH | oklch(37% 0.077 75.6) |
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 #573901 | 10.54:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #573901 | 1.99:1 | Fails | Lc 9.7 | Not readable |
| #573901 text on white | 10.54:1 | AAA | Lc 94.2 | Preferred for body text |
| #573901 text on black | 1.99:1 | Fails | Lc -8.3 | 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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#F1E9DE
oklch(93.7% 0.017 76.1)
-
Step 200
200
#E6D7C2
oklch(88.6% 0.033 76.4)
-
Step 300
300
#D7BC97
oklch(80.9% 0.058 75.5)
-
Step 400
400
#C2995C
oklch(70.8% 0.093 76.3)
-
Step 500
500
#B27E26
oklch(63% 0.118 75.8)
-
Step 600
600
#9A6800
oklch(55.6% 0.117 75.8)
-
Step 700
700
#825700
oklch(49.1% 0.103 75.7)
-
Step 800
800
#6B4700
oklch(42.8% 0.09 75.9)
-
Step 900
900 (this color)
#573901
oklch(37% 0.077 75.6)
-
Step 950
950
#342307
oklch(27.1% 0.049 76.4)
#573901 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) | #443B00 | 0.037 |
| Deuteranopia (no green cones) | #4B4203 | 0.033 |
| Tritanopia (no blue cones) | #60312F | 0.065 |
| Achromatopsia (no color) | #3F3F3F | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573901
#573901
oklch(37% 0.077 75.6)
- #224168
#224168
oklch(37.2% 0.077 255.1)
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 #573901, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.043
- Dark Olive #373E02 ΔE 0.060
- Green Brown #544E03 ΔE 0.062
- Chestnut #742802 ΔE 0.069
- Purple Brown #673A3F ΔE 0.082
- Charcoal Grey #3C4142 ΔE 0.082
- Olive Brown #645403 ΔE 0.085
- Pakistan Green #283618 ΔE 0.086
Use #573901 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.