#51431F
Closest named color: Mud Brown (#60460F). oklch(38.9% 0.056 88.4), rgb(81, 67, 31).
Aa
White text reads best on this color (9.66:1).
About this color
#51431F is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.056 and its hue 88°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.033 away. White text reads best on it, at 9.66:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.17:1 |
| White text | 9.66:1 |
Values
| HEX | #51431F |
| RGB | rgb(81, 67, 31) |
| HSL | hsl(43, 45%, 22%) |
| OKLCH | oklch(38.9% 0.056 88.4) |
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 #51431F | 9.66:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #51431F | 2.17:1 | Fails | Lc 11.6 | Not readable |
| #51431F text on white | 9.66:1 | AAA | Lc 92.3 | Preferred for body text |
| #51431F text on black | 2.17:1 | Fails | Lc -10.1 | 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
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EDEAE1
oklch(93.7% 0.012 91.5)
-
Step 200
200
#DFD9C8
oklch(88.5% 0.024 90.8)
-
Step 300
300
#CCC0A2
oklch(81% 0.043 88.8)
-
Step 400
400
#B29F70
oklch(70.8% 0.067 88.5)
-
Step 500
500
#9F8749
oklch(63.2% 0.086 88.7)
-
Step 600
600
#8A702A
oklch(55.7% 0.093 88.4)
-
Step 700
700
#755D1D
oklch(49% 0.086 87.7)
-
Step 800
800
#5F4C1A
oklch(42.6% 0.072 87.9)
-
Step 900
900 (this color)
#51431F
oklch(38.9% 0.056 88.4)
-
Step 950
950
#2E2511
oklch(26.9% 0.035 85.8)
#51431F 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) | #4A421C | 0.014 |
| Deuteranopia (no green cones) | #4E4620 | 0.010 |
| Tritanopia (no blue cones) | #583E3B | 0.051 |
| Achromatopsia (no color) | #444444 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51431F
#51431F
oklch(38.9% 0.056 88.4)
- #384363
#384363
oklch(38.8% 0.057 269.1)
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 #51431F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.033
- Green Brown #544E03 ΔE 0.046
- Dark Olive #373E02 ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.063
- Olive Brown #645403 ΔE 0.070
- Navy Green #35530A ΔE 0.073
- Purple Brown #673A3F ΔE 0.075
- Dark Slate Gray #2F4F4F ΔE 0.077
Use #51431F 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.