#40511B
Closest named color: Navy Green (#35530A). oklch(40.8% 0.081 124.7), rgb(64, 81, 27).
Aa
White text reads best on this color (8.71:1).
About this color
#40511B is a dark, moderately saturated brown. In OKLCH its lightness is 41%, its chroma 0.081 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.024 away. White text reads best on it, at 8.71:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.41:1 |
| White text | 8.71:1 |
Values
| HEX | #40511B |
| RGB | rgb(64, 81, 27) |
| HSL | hsl(79, 50%, 21%) |
| OKLCH | oklch(40.8% 0.081 124.7) |
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 #40511B | 8.71:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #40511B | 2.41:1 | Fails | Lc 14.2 | Not readable |
| #40511B text on white | 8.71:1 | AAA | Lc 89.8 | Fine for body text |
| #40511B text on black | 2.41:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E8ECE2
oklch(93.7% 0.014 124.6)
-
Step 200
200
#D5DCCA
oklch(88.4% 0.025 124.3)
-
Step 300
300
#BAC6A5
oklch(80.8% 0.047 123.7)
-
Step 400
400
#96A975
oklch(70.7% 0.075 124.6)
-
Step 500
500
#7C9450
oklch(63.2% 0.098 125)
-
Step 600
600
#667E33
oklch(55.7% 0.106 124.6)
-
Step 700
700
#546A25
oklch(49.1% 0.098 124.9)
-
Step 800
800 (this color)
#40511B
oklch(40.8% 0.081 124.7)
-
Step 900
900
#3A4720
oklch(37.6% 0.063 124.5)
-
Step 950
950
#222A13
oklch(27% 0.041 124.8)
#40511B 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) | #564C15 | 0.036 |
| Deuteranopia (no green cones) | #534B1F | 0.036 |
| Tritanopia (no blue cones) | #434D46 | 0.067 |
| Achromatopsia (no color) | #4B4B4B | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40511B
#40511B
oklch(40.8% 0.081 124.7)
- #543E6D
#543E6D
oklch(40.9% 0.08 304.7)
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 #40511B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.024
- Green Brown #544E03 ΔE 0.031
- Pine #2B5D34 ΔE 0.042
- Army Green #4B5D16 ΔE 0.044
- Camouflage Green #4B6113 ΔE 0.056
- Spruce #0A5F38 ΔE 0.056
- Forest #0B5509 ΔE 0.057
- Mud Brown #60460F ΔE 0.059
Use #40511B 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.