#5B431B
Closest named color: Mud Brown (#60460F). oklch(40% 0.065 77.7), rgb(91, 67, 27).
Aa
White text reads best on this color (9.27:1).
About this color
#5B431B is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.065 and its hue 78°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.018 away. White text reads best on it, at 9.27:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.065) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #5B431B |
| RGB | rgb(91, 67, 27) |
| HSL | hsl(38, 54%, 23%) |
| OKLCH | oklch(40% 0.065 77.7) |
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 #5B431B | 9.27:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #5B431B | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #5B431B text on white | 9.27:1 | AAA | Lc 91.3 | Preferred for body text |
| #5B431B text on black | 2.26:1 | Fails | Lc -11.1 | 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
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#EFE9E0
oklch(93.6% 0.014 78.3)
-
Step 200
200
#E3D7C6
oklch(88.4% 0.026 76.8)
-
Step 300
300
#D2BD9E
oklch(80.8% 0.048 77.5)
-
Step 400
400
#BC9B68
oklch(70.8% 0.078 77.8)
-
Step 500
500
#AB813D
oklch(63.1% 0.1 77.2)
-
Step 600
600
#966A17
oklch(55.6% 0.108 77.6)
-
Step 700
700
#805805
oklch(49.1% 0.101 77.5)
-
Step 800
800
#68480C
oklch(42.7% 0.083 77.3)
-
Step 900
900 (this color)
#5B431B
oklch(40% 0.065 77.7)
-
Step 950
950
#31240D
oklch(27% 0.041 79.8)
#5B431B 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) | #4C4417 | 0.029 |
| Deuteranopia (no green cones) | #524A1C | 0.025 |
| Tritanopia (no blue cones) | #633C3A | 0.056 |
| Achromatopsia (no color) | #474747 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B431B
#5B431B
oklch(40% 0.065 77.7)
- #31486A
#31486A
oklch(39.9% 0.065 258)
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 #5B431B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.018
- Green Brown #544E03 ΔE 0.044
- Olive Brown #645403 ΔE 0.060
- Purple Brown #673A3F ΔE 0.069
- Dark Olive #373E02 ΔE 0.074
- Chestnut #742802 ΔE 0.075
- Charcoal Grey #3C4142 ΔE 0.076
- Milk Chocolate #7F4E1E ΔE 0.078
Use #5B431B 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.