#5B5311
Closest named color: Olive Brown (#645403). oklch(43.7% 0.083 102.1), rgb(91, 83, 17).
Aa
White text reads best on this color (7.80:1).
About this color
#5B5311 is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.083 and its hue 102°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.017 away. White text reads best on it, at 7.80:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.69:1 |
| White text | 7.80:1 |
Values
| HEX | #5B5311 |
| RGB | rgb(91, 83, 17) |
| HSL | hsl(54, 69%, 21%) |
| OKLCH | oklch(43.7% 0.083 102.1) |
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 #5B5311 | 7.80:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #5B5311 | 2.69:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #5B5311 text on white | 7.80:1 | AAA | Lc 87.0 | Fine for body text |
| #5B5311 text on black | 2.69:1 | Fails | Lc -15.1 | 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
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#EBEAE0
oklch(93.5% 0.013 102)
-
Step 200
200
#DCDAC6
oklch(88.5% 0.027 102.3)
-
Step 300
300
#C6C29E
oklch(80.8% 0.049 102.2)
-
Step 400
400
#AAA369
oklch(70.8% 0.078 102.2)
-
Step 500
500
#958C3E
oklch(63.2% 0.1 102.8)
-
Step 600
600
#807518
oklch(55.6% 0.108 102.2)
-
Step 700
700
#6C6206
oklch(49% 0.101 102.3)
-
Step 800
800 (this color)
#5B5311
oklch(43.7% 0.083 102.1)
-
Step 900
900
#484315
oklch(37.8% 0.065 103.1)
-
Step 950
950
#2A270E
oklch(26.9% 0.04 102.5)
#5B5311 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) | #5C5004 | 0.009 |
| Deuteranopia (no green cones) | #5E5416 | 0.007 |
| Tritanopia (no blue cones) | #634C46 | 0.077 |
| Achromatopsia (no color) | #525252 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B5311
#5B5311
oklch(43.7% 0.083 102.1)
- #4B4B7E
#4B4B7E
oklch(43.7% 0.083 282.4)
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 #5B5311, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.017
- Green Brown #544E03 ΔE 0.021
- Army Green #4B5D16 ΔE 0.037
- Mud Brown #60460F ΔE 0.039
- Camouflage Green #4B6113 ΔE 0.047
- Greeny Brown #696006 ΔE 0.048
- Mud #735C12 ΔE 0.052
- Camo Green #526525 ΔE 0.052
Use #5B5311 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.