#51491F
Closest named color: Mud Brown (#60460F). oklch(40.3% 0.061 98.7), rgb(81, 73, 31).
Aa
White text reads best on this color (9.04:1).
About this color
#51491F is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.061 and its hue 99°. 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 9.04:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.32:1 |
| White text | 9.04:1 |
Values
| HEX | #51491F |
| RGB | rgb(81, 73, 31) |
| HSL | hsl(50, 45%, 22%) |
| OKLCH | oklch(40.3% 0.061 98.7) |
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 #51491F | 9.04:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #51491F | 2.32:1 | Fails | Lc 13.2 | Not readable |
| #51491F text on white | 9.04:1 | AAA | Lc 90.7 | Preferred for body text |
| #51491F text on black | 2.32:1 | Fails | Lc -11.6 | 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
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#EBEAE2
oklch(93.6% 0.011 100.8)
-
Step 200
200
#DCDACB
oklch(88.6% 0.02 100.6)
-
Step 300
300
#C6C1A7
oklch(80.8% 0.036 98.2)
-
Step 400
400
#A9A278
oklch(70.7% 0.058 99.7)
-
Step 500
500
#958A55
oklch(63.1% 0.073 97.9)
-
Step 600
600
#7F743A
oklch(55.6% 0.079 98.8)
-
Step 700
700
#6B612C
oklch(49% 0.074 98.8)
-
Step 800
800 (this color)
#51491F
oklch(40.3% 0.061 98.7)
-
Step 900
900
#484223
oklch(37.7% 0.048 98.6)
-
Step 950
950
#2A2715
oklch(27.1% 0.031 100)
#51491F 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) | #50471B | 0.007 |
| Deuteranopia (no green cones) | #524A21 | 0.004 |
| Tritanopia (no blue cones) | #574440 | 0.056 |
| Achromatopsia (no color) | #494949 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51491F
#51491F
oklch(40.3% 0.061 98.7)
- #414569
#414569
oklch(40.3% 0.061 278.4)
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 #51491F, 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 0.029
- Olive Brown #645403 ΔE 0.054
- Navy Green #35530A ΔE 0.060
- Dark Olive #373E02 ΔE 0.064
- Army Green #4B5D16 ΔE 0.066
- Pine #2B5D34 ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.072
Use #51491F 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.