#513F1B
Closest named color: Mud Brown (#60460F). oklch(37.9% 0.058 82.7), rgb(81, 63, 27).
Aa
White text reads best on this color (10.11:1).
About this color
#513F1B is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.058 and its hue 83°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.039 away. White text reads best on it, at 10.11:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.07:1 |
| White text | 10.11:1 |
Values
| HEX | #513F1B |
| RGB | rgb(81, 63, 27) |
| HSL | hsl(40, 50%, 21%) |
| OKLCH | oklch(37.9% 0.058 82.7) |
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 #513F1B | 10.11:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #513F1B | 2.07:1 | Fails | Lc 10.5 | Not readable |
| #513F1B text on white | 10.11:1 | AAA | Lc 93.4 | Preferred for body text |
| #513F1B text on black | 2.07:1 | Fails | Lc -9.1 | 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
#EEE9E1
oklch(93.6% 0.012 79.8)
-
Step 200
200
#E1D8C8
oklch(88.5% 0.024 82.1)
-
Step 300
300
#CEBFA2
oklch(81% 0.043 83.8)
-
Step 400
400
#B69D6F
oklch(70.7% 0.069 82.3)
-
Step 500
500
#A48447
oklch(63% 0.089 82.1)
-
Step 600
600
#8F6D27
oklch(55.5% 0.096 82.1)
-
Step 700
700
#795B1A
oklch(49% 0.089 82.6)
-
Step 800
800
#634B18
oklch(42.8% 0.074 82.9)
-
Step 900
900 (this color)
#513F1B
oklch(37.9% 0.058 82.7)
-
Step 950
950
#2F2510
oklch(27% 0.037 84.4)
#513F1B 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) | #473F17 | 0.020 |
| Deuteranopia (no green cones) | #4B441C | 0.018 |
| Tritanopia (no blue cones) | #583937 | 0.052 |
| Achromatopsia (no color) | #424242 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513F1B
#513F1B
oklch(37.9% 0.058 82.7)
- #314261
#314261
oklch(37.9% 0.058 261.9)
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 #513F1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.039
- Green Brown #544E03 ΔE 0.055
- Dark Olive #373E02 ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.063
- Purple Brown #673A3F ΔE 0.074
- Onyx #343A40 ΔE 0.078
- Olive Brown #645403 ΔE 0.079
- Pakistan Green #283618 ΔE 0.080
Use #513F1B 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.