#51533B
Closest named color: Green Brown (#544E03). oklch(43.3% 0.038 111.8), rgb(81, 83, 59).
Aa
White text reads best on this color (7.92:1).
About this color
#51533B is a dark, muted brown. In OKLCH its lightness is 43%, its chroma 0.038 and its hue 112°. 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 7.92:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Green Brown (#544E03) |
| Black text | 2.65:1 |
| White text | 7.92:1 |
Values
| HEX | #51533B |
| RGB | rgb(81, 83, 59) |
| HSL | hsl(65, 17%, 28%) |
| OKLCH | oklch(43.3% 0.038 111.8) |
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 #51533B | 7.92:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #51533B | 2.65:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #51533B text on white | 7.92:1 | AAA | Lc 87.5 | Fine for body text |
| #51533B text on black | 2.65:1 | Fails | Lc -14.6 | 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 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
#D9DAD1
oklch(88.5% 0.012 111.8)
-
Step 300
300
#C1C2B2
oklch(80.9% 0.022 109.8)
-
Step 400
400
#A1A38A
oklch(70.7% 0.035 111)
-
Step 500
500
#8A8D6D
oklch(63.2% 0.046 112.1)
-
Step 600
600
#747655
oklch(55.5% 0.048 110.8)
-
Step 700
700
#616445
oklch(49.2% 0.047 112.6)
-
Step 800
800 (this color)
#51533B
oklch(43.3% 0.038 111.8)
-
Step 900
900
#424331
oklch(37.6% 0.029 110.4)
-
Step 950
950
#26271D
oklch(26.8% 0.018 112.2)
#51533B 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) | #575139 | 0.011 |
| Deuteranopia (no green cones) | #57513C | 0.012 |
| Tritanopia (no blue cones) | #54504D | 0.034 |
| Achromatopsia (no color) | #515151 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51533B
#51533B
oklch(43.3% 0.038 111.8)
- #514D64
#514D64
oklch(43.3% 0.038 292.7)
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 #51533B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Brown #544E03 ΔE 0.052
- Mud Brown #60460F ΔE 0.053
- Olive Brown #645403 ΔE 0.058
- Dark Slate Gray #2F4F4F ΔE 0.059
- Pine #2B5D34 ΔE 0.060
- Army Green #4B5D16 ΔE 0.062
- Dark Green Blue #1F6357 ΔE 0.069
- Camo Green #526525 ΔE 0.071
Use #51533B 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.