#51513D
Closest named color: Mud Brown (#60460F). oklch(42.9% 0.031 107.7), rgb(81, 81, 61).
Aa
White text reads best on this color (8.09:1).
About this color
#51513D is a dark, muted brown. In OKLCH its lightness is 43%, its chroma 0.031 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.054 away. White text reads best on it, at 8.09:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | muted (0.031) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.59:1 |
| White text | 8.09:1 |
Values
| HEX | #51513D |
| RGB | rgb(81, 81, 61) |
| HSL | hsl(60, 14%, 28%) |
| OKLCH | oklch(42.9% 0.031 107.7) |
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 #51513D | 8.09:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #51513D | 2.59:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #51513D text on white | 8.09:1 | AAA | Lc 88.0 | Fine for body text |
| #51513D text on black | 2.59:1 | Fails | Lc -14.1 | 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 800.
-
Step 50
50
#F5F5F4
oklch(97% 0.001 106.4)
-
Step 100
100
#EAEAE6
oklch(93.6% 0.005 106.5)
-
Step 200
200
#D9DAD2
oklch(88.5% 0.011 112.4)
-
Step 300
300
#C1C2B4
oklch(80.9% 0.019 110.1)
-
Step 400
400
#A2A28D
oklch(70.6% 0.03 107.1)
-
Step 500
500
#8B8B71
oklch(63% 0.037 107.4)
-
Step 600
600
#75755A
oklch(55.5% 0.04 107.6)
-
Step 700
700
#636349
oklch(49.2% 0.039 107.8)
-
Step 800
800 (this color)
#51513D
oklch(42.9% 0.031 107.7)
-
Step 900
900
#434334
oklch(37.8% 0.024 107.5)
-
Step 950
950
#27271E
oklch(27% 0.016 107.4)
#51513D 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) | #544F3C | 0.007 |
| Deuteranopia (no green cones) | #55503E | 0.008 |
| Tritanopia (no blue cones) | #544E4C | 0.029 |
| Achromatopsia (no color) | #505050 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51513D
#51513D
oklch(42.9% 0.031 107.7)
- #4E4D60
#4E4D60
oklch(42.9% 0.031 287.4)
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 #51513D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.054
- Dark Slate Gray #2F4F4F ΔE 0.055
- Green Brown #544E03 ΔE 0.057
- Olive Brown #645403 ΔE 0.064
- Pine #2B5D34 ΔE 0.065
- Charcoal Grey #3C4142 ΔE 0.067
- Army Green #4B5D16 ΔE 0.070
- Dark Green Blue #1F6357 ΔE 0.072
Use #51513D 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.