#3F4F18
Closest named color: Navy Green (#35530A). oklch(40.1% 0.081 123.9), rgb(63, 79, 24).
Aa
White text reads best on this color (8.96:1).
About this color
#3F4F18 is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.081 and its hue 124°. 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 8.96:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.34:1 |
| White text | 8.96:1 |
Values
| HEX | #3F4F18 |
| RGB | rgb(63, 79, 24) |
| HSL | hsl(77, 53%, 20%) |
| OKLCH | oklch(40.1% 0.081 123.9) |
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 #3F4F18 | 8.96:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #3F4F18 | 2.34:1 | Fails | Lc 13.5 | Not readable |
| #3F4F18 text on white | 8.96:1 | AAA | Lc 90.5 | Preferred for body text |
| #3F4F18 text on black | 2.34:1 | Fails | Lc -11.8 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECDF
oklch(93.6% 0.018 124)
-
Step 200
200
#D4DDC5
oklch(88.4% 0.034 123.9)
-
Step 300
300
#B8C89D
oklch(80.9% 0.061 124.3)
-
Step 400
400
#94AB66
oklch(70.7% 0.097 123.9)
-
Step 500
500
#7A9638
oklch(63.2% 0.125 124)
-
Step 600
600
#638008
oklch(55.7% 0.136 124.2)
-
Step 700
700
#536B00
oklch(49% 0.121 123.6)
-
Step 800
800
#435803
oklch(42.7% 0.105 124.2)
-
Step 900
900 (this color)
#3F4F18
oklch(40.1% 0.081 123.9)
-
Step 950
950
#212A0C
oklch(26.8% 0.05 123.8)
#3F4F18 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) | #544A11 | 0.035 |
| Deuteranopia (no green cones) | #52491C | 0.036 |
| Tritanopia (no blue cones) | #424B44 | 0.067 |
| Achromatopsia (no color) | #494949 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F4F18
#3F4F18
oklch(40.1% 0.081 123.9)
- #513C6B
#513C6B
oklch(40% 0.08 303.6)
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 #3F4F18, 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 0.033
- Pine #2B5D34 ΔE 0.047
- Army Green #4B5D16 ΔE 0.050
- Forest #0B5509 ΔE 0.056
- Dark Olive #373E02 ΔE 0.057
- Mud Brown #60460F ΔE 0.058
- Deep Green #02590F ΔE 0.060
Use #3F4F18 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.