#5B372A
Closest named color: Purple Brown (#673A3F). oklch(37.7% 0.056 40.6), rgb(91, 55, 42).
Aa
White text reads best on this color (10.37:1).
About this color
#5B372A is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.056 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.041 away. White text reads best on it, at 10.37:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.02:1 |
| White text | 10.37:1 |
Values
| HEX | #5B372A |
| RGB | rgb(91, 55, 42) |
| HSL | hsl(16, 37%, 26%) |
| OKLCH | oklch(37.7% 0.056 40.6) |
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 #5B372A | 10.37:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #5B372A | 2.02:1 | Fails | Lc 10.0 | Not readable |
| #5B372A text on white | 10.37:1 | AAA | Lc 93.9 | Preferred for body text |
| #5B372A text on black | 2.02:1 | Fails | Lc -8.6 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F2E7E4
oklch(93.6% 0.013 35.7)
-
Step 200
200
#E8D4CE
oklch(88.5% 0.024 37.4)
-
Step 300
300
#DAB8AC
oklch(80.9% 0.043 40.4)
-
Step 400
400
#C69381
oklch(70.7% 0.067 40.3)
-
Step 500
500
#B67761
oklch(63% 0.086 40)
-
Step 600
600
#A15F47
oklch(55.4% 0.094 40.6)
-
Step 700
700
#8A4F39
oklch(49.2% 0.087 41)
-
Step 800
800
#70412F
oklch(42.7% 0.072 41.5)
-
Step 900
900 (this color)
#5B372A
oklch(37.7% 0.056 40.6)
-
Step 950
950
#352019
oklch(26.8% 0.035 39.2)
#5B372A 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) | #403B29 | 0.052 |
| Deuteranopia (no green cones) | #49432A | 0.047 |
| Tritanopia (no blue cones) | #633134 | 0.030 |
| Achromatopsia (no color) | #404040 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B372A
#5B372A
oklch(37.7% 0.056 40.6)
- #184856
#184856
oklch(37.6% 0.056 220.6)
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 #5B372A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.041
- Chestnut #742802 ΔE 0.060
- Mud Brown #60460F ΔE 0.062
- Charcoal Grey #3C4142 ΔE 0.063
- Onyx #343A40 ΔE 0.075
- Reddy Brown #6E1005 ΔE 0.079
- Brownish Purple #76424E ΔE 0.081
- Green Brown #544E03 ΔE 0.089
Use #5B372A 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.