#5B3F15
Closest named color: Mud Brown (#60460F). oklch(39.1% 0.069 74), rgb(91, 63, 21).
Aa
White text reads best on this color (9.69:1).
About this color
#5B3F15 is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.069 and its hue 74°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.025 away. White text reads best on it, at 9.69:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.16:1 |
| White text | 9.69:1 |
Values
| HEX | #5B3F15 |
| RGB | rgb(91, 63, 21) |
| HSL | hsl(36, 63%, 22%) |
| OKLCH | oklch(39.1% 0.069 74) |
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 #5B3F15 | 9.69:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #5B3F15 | 2.16:1 | Fails | Lc 11.6 | Not readable |
| #5B3F15 text on white | 9.69:1 | AAA | Lc 92.3 | Preferred for body text |
| #5B3F15 text on black | 2.16:1 | 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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#F0E9DF
oklch(93.7% 0.015 77.1)
-
Step 200
200
#E5D7C5
oklch(88.6% 0.029 74.3)
-
Step 300
300
#D5BC9C
oklch(80.8% 0.052 73.8)
-
Step 400
400
#C09965
oklch(70.7% 0.083 73.8)
-
Step 500
500
#AF7F38
oklch(63.1% 0.106 74.3)
-
Step 600
600
#9B670B
oklch(55.6% 0.115 73.4)
-
Step 700
700
#835600
oklch(49.1% 0.104 74.1)
-
Step 800
800
#6B4604
oklch(42.6% 0.088 73.9)
-
Step 900
900 (this color)
#5B3F15
oklch(39.1% 0.069 74)
-
Step 950
950
#33230C
oklch(27% 0.043 74)
#5B3F15 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) | #494010 | 0.035 |
| Deuteranopia (no green cones) | #504716 | 0.030 |
| Tritanopia (no blue cones) | #643836 | 0.057 |
| Achromatopsia (no color) | #444444 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3F15
#5B3F15
oklch(39.1% 0.069 74)
- #2A4769
#2A4769
oklch(39.2% 0.068 253.3)
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 #5B3F15, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.025
- Green Brown #544E03 ΔE 0.051
- Chestnut #742802 ΔE 0.068
- Purple Brown #673A3F ΔE 0.069
- Olive Brown #645403 ΔE 0.069
- Dark Olive #373E02 ΔE 0.071
- Charcoal Grey #3C4142 ΔE 0.077
- Milk Chocolate #7F4E1E ΔE 0.085
Use #5B3F15 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.