#5B5437
Closest named color: Olive Brown (#645403). oklch(44.5% 0.045 96.2), rgb(91, 84, 55).
Aa
White text reads best on this color (7.58:1).
About this color
#5B5437 is a dark, muted brown. In OKLCH its lightness is 44%, its chroma 0.045 and its hue 96°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.046 away. White text reads best on it, at 7.58:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.76:1 |
| White text | 7.58:1 |
Values
| HEX | #5B5437 |
| RGB | rgb(91, 84, 55) |
| HSL | hsl(48, 25%, 29%) |
| OKLCH | oklch(44.5% 0.045 96.2) |
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 #5B5437 | 7.58:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #5B5437 | 2.76:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #5B5437 text on white | 7.58:1 | AAA | Lc 86.4 | Fine for body text |
| #5B5437 text on black | 2.76:1 | Fails | Lc -15.7 | Dividers and decoration only |
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 800.
-
Step 50
50
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE4
oklch(93.6% 0.008 98.9)
-
Step 200
200
#DCD9CF
oklch(88.5% 0.014 93)
-
Step 300
300
#C5C1AE
oklch(80.9% 0.026 97.2)
-
Step 400
400
#A8A184
oklch(70.7% 0.041 96)
-
Step 500
500
#938A65
oklch(63.2% 0.053 96.1)
-
Step 600
600
#7D744C
oklch(55.7% 0.058 97)
-
Step 700
700
#6A613D
oklch(49.2% 0.054 95.8)
-
Step 800
800 (this color)
#5B5437
oklch(44.5% 0.045 96.2)
-
Step 900
900
#47422C
oklch(37.8% 0.036 96.9)
-
Step 950
950
#2A271A
oklch(27.2% 0.023 96.7)
#5B5437 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) | #5A5335 | 0.004 |
| Deuteranopia (no green cones) | #5C5538 | 0.004 |
| Tritanopia (no blue cones) | #60504D | 0.041 |
| Achromatopsia (no color) | #545454 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B5437
#5B5437
oklch(44.5% 0.045 96.2)
- #4D526D
#4D526D
oklch(44.5% 0.045 276.3)
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 #5B5437, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.046
- Mud Brown #60460F ΔE 0.048
- Green Brown #544E03 ΔE 0.051
- Army Green #4B5D16 ΔE 0.060
- Mud #735C12 ΔE 0.062
- Camo Green #526525 ΔE 0.065
- Milk Chocolate #7F4E1E ΔE 0.065
- Greeny Brown #696006 ΔE 0.067
Use #5B5437 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.