#51573A
Closest named color: Green Brown (#544E03). oklch(44.3% 0.045 117.8), rgb(81, 87, 58).
Aa
White text reads best on this color (7.56:1).
About this color
#51573A is a dark, muted brown. In OKLCH its lightness is 44%, its chroma 0.045 and its hue 118°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Green Brown (#544E03), ΔE 0.051 away. White text reads best on it, at 7.56:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.77:1 |
| White text | 7.56:1 |
Values
| HEX | #51573A |
| RGB | rgb(81, 87, 58) |
| HSL | hsl(72, 20%, 28%) |
| OKLCH | oklch(44.3% 0.045 117.8) |
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 #51573A | 7.56:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #51573A | 2.77:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #51573A text on white | 7.56:1 | AAA | Lc 86.3 | Fine for body text |
| #51573A text on black | 2.77:1 | Fails | Lc -15.8 | 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
#E9EBE5
oklch(93.7% 0.008 121.6)
-
Step 200
200
#D8DBD0
oklch(88.6% 0.015 119.1)
-
Step 300
300
#BFC3B0
oklch(80.9% 0.026 116.7)
-
Step 400
400
#9EA587
oklch(70.8% 0.043 118.2)
-
Step 500
500
#868E69
oklch(63% 0.054 117.9)
-
Step 600
600
#707850
oklch(55.5% 0.059 117.6)
-
Step 700
700
#5E6541
oklch(49.1% 0.055 117.4)
-
Step 800
800 (this color)
#51573A
oklch(44.3% 0.045 117.8)
-
Step 900
900
#40442F
oklch(37.7% 0.034 116.8)
-
Step 950
950
#25281C
oklch(27% 0.022 119.3)
#51573A 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) | #5B5438 | 0.017 |
| Deuteranopia (no green cones) | #5A543B | 0.017 |
| Tritanopia (no blue cones) | #54544F | 0.038 |
| Achromatopsia (no color) | #545454 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51573A
#51573A
oklch(44.3% 0.045 117.8)
- #564E6A
#564E6A
oklch(44.3% 0.046 297.6)
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 #51573A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.051
- Olive Brown #645403 ΔE 0.052
- Army Green #4B5D16 ΔE 0.052
- Pine #2B5D34 ΔE 0.053
- Mud Brown #60460F ΔE 0.058
- Camo Green #526525 ΔE 0.058
- Camouflage Green #4B6113 ΔE 0.061
- Dark Green Blue #1F6357 ΔE 0.063
Use #51573A 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.