#51471B
Closest named color: Mud Brown (#60460F). oklch(39.8% 0.063 96.6), rgb(81, 71, 27).
Aa
White text reads best on this color (9.26:1).
About this color
#51471B is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.063 and its hue 97°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.027 away. White text reads best on it, at 9.26:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.26:1 |
| White text | 9.26:1 |
Values
| HEX | #51471B |
| RGB | rgb(81, 71, 27) |
| HSL | hsl(49, 50%, 21%) |
| OKLCH | oklch(39.8% 0.063 96.6) |
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 #51471B | 9.26:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #51471B | 2.26:1 | Fails | Lc 12.6 | Not readable |
| #51471B text on white | 9.26:1 | AAA | Lc 91.3 | Preferred for body text |
| #51471B text on black | 2.26:1 | Fails | Lc -11.0 | 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 900.
-
Step 50
50
#F6F5F1
oklch(97% 0.005 95.1)
-
Step 100
100
#ECEAE0
oklch(93.6% 0.013 97.4)
-
Step 200
200
#DED9C6
oklch(88.4% 0.026 94.8)
-
Step 300
300
#C9C19F
oklch(80.9% 0.047 96.3)
-
Step 400
400
#AEA169
oklch(70.7% 0.076 96.7)
-
Step 500
500
#9A893F
oklch(63% 0.097 96.5)
-
Step 600
600
#857319
oklch(55.7% 0.106 97.1)
-
Step 700
700
#716008
oklch(49.1% 0.098 96.6)
-
Step 800
800
#5C4E0D
oklch(42.6% 0.081 96)
-
Step 900
900 (this color)
#51471B
oklch(39.8% 0.063 96.6)
-
Step 950
950
#2C260E
oklch(26.9% 0.039 95.5)
#51471B 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) | #4E4516 | 0.009 |
| Deuteranopia (no green cones) | #51491D | 0.006 |
| Tritanopia (no blue cones) | #58423D | 0.057 |
| Achromatopsia (no color) | #474747 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51471B
#51471B
oklch(39.8% 0.063 96.6)
- #3E4469
#3E4469
oklch(39.8% 0.063 276.1)
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 #51471B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.027
- Green Brown #544E03 ΔE 0.031
- Olive Brown #645403 ΔE 0.058
- Dark Olive #373E02 ΔE 0.060
- Navy Green #35530A ΔE 0.061
- Army Green #4B5D16 ΔE 0.070
- Charcoal Grey #3C4142 ΔE 0.072
- Pine #2B5D34 ΔE 0.076
Use #51471B 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.