#57573F
Closest named color: Olive Brown (#645403). oklch(45% 0.037 107.8), rgb(87, 87, 63).
Aa
White text reads best on this color (7.39:1).
About this color
#57573F is a dark, muted brown. In OKLCH its lightness is 45%, its chroma 0.037 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.055 away. White text reads best on it, at 7.39:1.
| Hue family | Browns |
| Lightness | dark (45%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.84:1 |
| White text | 7.39:1 |
Values
| HEX | #57573F |
| RGB | rgb(87, 87, 63) |
| HSL | hsl(60, 16%, 29%) |
| OKLCH | oklch(45% 0.037 107.8) |
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 #57573F | 7.39:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #57573F | 2.84:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #57573F text on white | 7.39:1 | AAA | Lc 85.7 | Fine for body text |
| #57573F text on black | 2.84:1 | Fails | Lc -16.3 | Dividers and decoration only |
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 800.
-
Step 50
50
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#EAEAE5
oklch(93.6% 0.007 106.5)
-
Step 200
200
#DADAD1
oklch(88.6% 0.012 106.6)
-
Step 300
300
#C2C2B2
oklch(81% 0.022 106.9)
-
Step 400
400
#A2A38A
oklch(70.8% 0.035 109.1)
-
Step 500
500
#8C8C6D
oklch(63.2% 0.044 107.6)
-
Step 600
600
#767655
oklch(55.7% 0.048 107.9)
-
Step 700
700
#636345
oklch(49.1% 0.045 107.9)
-
Step 800
800 (this color)
#57573F
oklch(45% 0.037 107.8)
-
Step 900
900
#434331
oklch(37.7% 0.029 107.7)
-
Step 950
950
#27271D
oklch(26.9% 0.018 107.5)
#57573F 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) | #5B553D | 0.008 |
| Deuteranopia (no green cones) | #5B5640 | 0.008 |
| Tritanopia (no blue cones) | #5B5451 | 0.034 |
| Achromatopsia (no color) | #565656 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57573F
#57573F
oklch(45% 0.037 107.8)
- #545269
#545269
oklch(44.9% 0.037 288.8)
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 #57573F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.055
- Green Brown #544E03 ΔE 0.060
- Mud Brown #60460F ΔE 0.060
- Army Green #4B5D16 ΔE 0.062
- Camo Green #526525 ΔE 0.063
- Pine #2B5D34 ΔE 0.065
- Mud #735C12 ΔE 0.067
- Dark Green Blue #1F6357 ΔE 0.068
Use #57573F 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.