#513F01
Closest named color: Mud Brown (#60460F). oklch(37.6% 0.076 90.2), rgb(81, 63, 1).
Aa
White text reads best on this color (10.18:1).
About this color
#513F01 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.076 and its hue 90°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.038 away. White text reads best on it, at 10.18:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.06:1 |
| White text | 10.18:1 |
Values
| HEX | #513F01 |
| RGB | rgb(81, 63, 1) |
| HSL | hsl(47, 98%, 16%) |
| OKLCH | oklch(37.6% 0.076 90.2) |
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 #513F01 | 10.18:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #513F01 | 2.06:1 | Fails | Lc 10.4 | Not readable |
| #513F01 text on white | 10.18:1 | AAA | Lc 93.5 | Preferred for body text |
| #513F01 text on black | 2.06:1 | Fails | Lc -9.0 | 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
#F7F5F0
oklch(97% 0.007 88.6)
-
Step 100
100
#EEEADE
oklch(93.7% 0.017 91.6)
-
Step 200
200
#E1D9C2
oklch(88.6% 0.032 91)
-
Step 300
300
#CFC097
oklch(81% 0.057 90.3)
-
Step 400
400
#B79E5B
oklch(70.7% 0.091 89.5)
-
Step 500
500
#A58623
oklch(63.2% 0.117 90.4)
-
Step 600
600
#8D6F00
oklch(55.5% 0.113 89.9)
-
Step 700
700
#775D00
oklch(49.1% 0.1 89.6)
-
Step 800
800
#614C00
oklch(42.6% 0.087 90.4)
-
Step 900
900 (this color)
#513F01
oklch(37.6% 0.076 90.2)
-
Step 950
950
#302506
oklch(27% 0.048 88.9)
#513F01 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) | #483E00 | 0.018 |
| Deuteranopia (no green cones) | #4C4305 | 0.014 |
| Tritanopia (no blue cones) | #593834 | 0.069 |
| Achromatopsia (no color) | #414141 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513F01
#513F01
oklch(37.6% 0.076 90.2)
- #323E6A
#323E6A
oklch(37.6% 0.077 270.8)
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 #513F01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.038
- Green Brown #544E03 ΔE 0.046
- Dark Olive #373E02 ΔE 0.047
- Navy Green #35530A ΔE 0.072
- Olive Brown #645403 ΔE 0.074
- Charcoal Grey #3C4142 ΔE 0.080
- Pakistan Green #283618 ΔE 0.081
- Forrest Green #154406 ΔE 0.086
Use #513F01 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.