#573604
Closest named color: Mud Brown (#60460F). oklch(36.4% 0.076 70.4), rgb(87, 54, 4).
Aa
White text reads best on this color (10.85:1).
About this color
#573604 is a dark, moderately saturated brown. In OKLCH its lightness is 36%, its chroma 0.076 and its hue 70°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.050 away. White text reads best on it, at 10.85:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.93:1 |
| White text | 10.85:1 |
Values
| HEX | #573604 |
| RGB | rgb(87, 54, 4) |
| HSL | hsl(36, 91%, 18%) |
| OKLCH | oklch(36.4% 0.076 70.4) |
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 #573604 | 10.85:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #573604 | 1.93:1 | Fails | Lc 9.0 | Not readable |
| #573604 text on white | 10.85:1 | AAA | Lc 94.9 | Preferred for body text |
| #573604 text on black | 1.93:1 | Fails | Lc -7.7 | 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
#F9F5F0
oklch(97.2% 0.008 73.7)
-
Step 100
100
#F1E8DE
oklch(93.5% 0.017 70.5)
-
Step 200
200
#E7D6C3
oklch(88.5% 0.032 70.5)
-
Step 300
300
#D9BB99
oklch(80.9% 0.057 70.4)
-
Step 400
400
#C59760
oklch(70.8% 0.091 70.5)
-
Step 500
500
#B67C2E
oklch(63.2% 0.117 70.3)
-
Step 600
600
#9F6500
oklch(55.7% 0.12 70.6)
-
Step 700
700
#865400
oklch(49.1% 0.106 70.2)
-
Step 800
800
#6E4400
oklch(42.6% 0.092 70.1)
-
Step 900
900 (this color)
#573604
oklch(36.4% 0.076 70.4)
-
Step 950
950
#352209
oklch(27% 0.047 70.6)
#573604 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) | #413800 | 0.044 |
| Deuteranopia (no green cones) | #494005 | 0.038 |
| Tritanopia (no blue cones) | #602E2D | 0.061 |
| Achromatopsia (no color) | #3D3D3D | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #573604
#573604
oklch(36.4% 0.076 70.4)
- #1B4064
#1B4064
oklch(36.3% 0.076 250.1)
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 #573604, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.050
- Dark Olive #373E02 ΔE 0.063
- Chestnut #742802 ΔE 0.065
- Green Brown #544E03 ΔE 0.072
- Purple Brown #673A3F ΔE 0.079
- Charcoal Grey #3C4142 ΔE 0.082
- Pakistan Green #283618 ΔE 0.085
- Reddy Brown #6E1005 ΔE 0.087
Use #573604 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.