#575A37
Closest named color: Olive Brown (#645403). oklch(45.5% 0.053 112.5), rgb(87, 90, 55).
Aa
White text reads best on this color (7.18:1).
About this color
#575A37 is a medium-dark, muted brown. In OKLCH its lightness is 46%, its chroma 0.053 and its hue 112°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.044 away. White text reads best on it, at 7.18:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.92:1 |
| White text | 7.18:1 |
Values
| HEX | #575A37 |
| RGB | rgb(87, 90, 55) |
| HSL | hsl(65, 24%, 28%) |
| OKLCH | oklch(45.5% 0.053 112.5) |
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 #575A37 | 7.18:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #575A37 | 2.92:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #575A37 text on white | 7.18:1 | AAA | Lc 84.9 | Fine for body text |
| #575A37 text on black | 2.92:1 | Fails | Lc -17.1 | 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
#EAEAE4
oklch(93.5% 0.008 106.6)
-
Step 200
200
#D9DACE
oklch(88.4% 0.016 110.6)
-
Step 300
300
#C0C3AD
oklch(80.9% 0.03 113.4)
-
Step 400
400
#A1A481
oklch(70.7% 0.049 111.6)
-
Step 500
500
#8A8E61
oklch(63.2% 0.063 112.3)
-
Step 600
600
#747848
oklch(55.7% 0.068 112.5)
-
Step 700
700
#616539
oklch(49.2% 0.064 113)
-
Step 800
800 (this color)
#575A37
oklch(45.5% 0.053 112.5)
-
Step 900
900
#42442A
oklch(37.7% 0.041 111.9)
-
Step 950
950
#262819
oklch(27% 0.026 114.4)
#575A37 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) | #5F5734 | 0.014 |
| Deuteranopia (no green cones) | #5F5839 | 0.015 |
| Tritanopia (no blue cones) | #5B5651 | 0.046 |
| Achromatopsia (no color) | #575757 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #575A37
#575A37
oklch(45.5% 0.053 112.5)
- #575172
#575172
oklch(45.4% 0.054 292.5)
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 #575A37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.044
- Army Green #4B5D16 ΔE 0.046
- Camo Green #526525 ΔE 0.047
- Green Brown #544E03 ΔE 0.052
- Camouflage Green #4B6113 ΔE 0.054
- Greeny Brown #696006 ΔE 0.055
- Mud #735C12 ΔE 0.056
- Dark Olive Green #556B2F ΔE 0.057
Use #575A37 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.