#573D02
Closest named color: Mud Brown (#60460F). oklch(37.9% 0.077 80.9), rgb(87, 61, 2).
Aa
White text reads best on this color (10.12:1).
About this color
#573D02 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.077 and its hue 81°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.033 away. White text reads best on it, at 10.12:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.07:1 |
| White text | 10.12:1 |
Values
| HEX | #573D02 |
| RGB | rgb(87, 61, 2) |
| HSL | hsl(42, 96%, 17%) |
| OKLCH | oklch(37.9% 0.077 80.9) |
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 #573D02 | 10.12:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #573D02 | 2.07:1 | Fails | Lc 10.6 | Not readable |
| #573D02 text on white | 10.12:1 | AAA | Lc 93.3 | Preferred for body text |
| #573D02 text on black | 2.07:1 | Fails | Lc -9.2 | 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
#F0E9DE
oklch(93.6% 0.017 79.3)
-
Step 200
200
#E4D7C2
oklch(88.4% 0.032 79.9)
-
Step 300
300
#D4BD97
oklch(80.8% 0.057 80.2)
-
Step 400
400
#BE9B5B
oklch(70.8% 0.092 81.4)
-
Step 500
500
#AE8123
oklch(63.2% 0.118 81)
-
Step 600
600
#956B00
oklch(55.6% 0.115 81.4)
-
Step 700
700
#7E5900
oklch(49% 0.101 80.5)
-
Step 800
800
#674900
oklch(42.7% 0.088 81.6)
-
Step 900
900 (this color)
#573D02
oklch(37.9% 0.077 80.9)
-
Step 950
950
#332406
oklch(27.2% 0.049 81.2)
#573D02 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) | #473E00 | 0.031 |
| Deuteranopia (no green cones) | #4D4405 | 0.026 |
| Tritanopia (no blue cones) | #603533 | 0.069 |
| Achromatopsia (no color) | #424242 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573D02
#573D02
oklch(37.9% 0.077 80.9)
- #2A426B
#2A426B
oklch(38% 0.077 260.5)
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 #573D02, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.033
- Green Brown #544E03 ΔE 0.051
- Dark Olive #373E02 ΔE 0.059
- Olive Brown #645403 ΔE 0.074
- Chestnut #742802 ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.082
- Navy Green #35530A ΔE 0.082
- Purple Brown #673A3F ΔE 0.083
Use #573D02 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.