#573F01
Closest named color: Mud Brown (#60460F). oklch(38.4% 0.078 83.9), rgb(87, 63, 1).
Aa
White text reads best on this color (9.92:1).
About this color
#573F01 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.078 and its hue 84°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.028 away. White text reads best on it, at 9.92:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.11:1 |
| White text | 9.92:1 |
Values
| HEX | #573F01 |
| RGB | rgb(87, 63, 1) |
| HSL | hsl(43, 98%, 17%) |
| OKLCH | oklch(38.4% 0.078 83.9) |
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 #573F01 | 9.92:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #573F01 | 2.11:1 | Fails | Lc 11.1 | Not readable |
| #573F01 text on white | 9.92:1 | AAA | Lc 92.8 | Preferred for body text |
| #573F01 text on black | 2.11:1 | Fails | Lc -9.6 | 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
#EFE9DD
oklch(93.5% 0.017 84.6)
-
Step 200
200
#E3D8C1
oklch(88.5% 0.033 85.5)
-
Step 300
300
#D3BE96
oklch(80.9% 0.059 83.4)
-
Step 400
400
#BC9C59
oklch(70.7% 0.094 84.5)
-
Step 500
500
#AC821F
oklch(63.1% 0.12 83.5)
-
Step 600
600
#936C00
oklch(55.6% 0.114 83.5)
-
Step 700
700
#7C5B00
oklch(49.2% 0.101 83.9)
-
Step 800
800
#664A00
oklch(42.8% 0.088 83.6)
-
Step 900
900 (this color)
#573F01
oklch(38.4% 0.078 83.9)
-
Step 950
950
#322405
oklch(27% 0.05 83.6)
#573F01 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) | #493F00 | 0.027 |
| Deuteranopia (no green cones) | #4F4504 | 0.022 |
| Tritanopia (no blue cones) | #603734 | 0.070 |
| Achromatopsia (no color) | #434343 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573F01
#573F01
oklch(38.4% 0.078 83.9)
- #2E426D
#2E426D
oklch(38.4% 0.078 264.2)
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 #573F01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.028
- Green Brown #544E03 ΔE 0.045
- Dark Olive #373E02 ΔE 0.059
- Olive Brown #645403 ΔE 0.068
- Navy Green #35530A ΔE 0.077
- Chestnut #742802 ΔE 0.078
- Charcoal Grey #3C4142 ΔE 0.084
- Purple Brown #673A3F ΔE 0.086
Use #573F01 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.