#51563B
Closest named color: Green Brown (#544E03). oklch(44.1% 0.042 116.7), rgb(81, 86, 59).
Aa
White text reads best on this color (7.65:1).
About this color
#51563B is a dark, muted brown. In OKLCH its lightness is 44%, its chroma 0.042 and its hue 117°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Green Brown (#544E03), ΔE 0.052 away. White text reads best on it, at 7.65:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | muted (0.042) |
| Temperature | in between |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.74:1 |
| White text | 7.65:1 |
Values
| HEX | #51563B |
| RGB | rgb(81, 86, 59) |
| HSL | hsl(71, 19%, 28%) |
| OKLCH | oklch(44.1% 0.042 116.7) |
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 #51563B | 7.65:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #51563B | 2.74:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #51563B text on white | 7.65:1 | AAA | Lc 86.6 | Fine for body text |
| #51563B text on black | 2.74:1 | Fails | Lc -15.5 | 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
#E9EAE5
oklch(93.5% 0.007 115.7)
-
Step 200
200
#D8DAD0
oklch(88.4% 0.014 115.9)
-
Step 300
300
#BFC3B1
oklch(80.9% 0.025 117.1)
-
Step 400
400
#9FA488
oklch(70.7% 0.04 115.6)
-
Step 500
500
#878E6B
oklch(63.1% 0.051 117.1)
-
Step 600
600
#717853
oklch(55.7% 0.055 116.9)
-
Step 700
700
#5F6543
oklch(49.2% 0.052 116.5)
-
Step 800
800 (this color)
#51563B
oklch(44.1% 0.042 116.7)
-
Step 900
900
#404430
oklch(37.7% 0.033 117.2)
-
Step 950
950
#26281C
oklch(27.1% 0.021 115.5)
#51563B 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) | #5A5339 | 0.016 |
| Deuteranopia (no green cones) | #59543C | 0.014 |
| Tritanopia (no blue cones) | #54534F | 0.036 |
| Achromatopsia (no color) | #535353 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51563B
#51563B
oklch(44.1% 0.042 116.7)
- #554E68
#554E68
oklch(44.1% 0.043 296.9)
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 #51563B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.052
- Olive Brown #645403 ΔE 0.054
- Pine #2B5D34 ΔE 0.055
- Army Green #4B5D16 ΔE 0.055
- Mud Brown #60460F ΔE 0.057
- Camo Green #526525 ΔE 0.062
- Dark Slate Gray #2F4F4F ΔE 0.064
- Dark Green Blue #1F6357 ΔE 0.064
Use #51563B 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.