#3F4F1F
Closest named color: Navy Green (#35530A). oklch(40.2% 0.074 125), rgb(63, 79, 31).
Aa
White text reads best on this color (8.93:1).
About this color
#3F4F1F is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.074 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 0.030 away. White text reads best on it, at 8.93:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.34:1 |
| White text | 8.93:1 |
Values
| HEX | #3F4F1F |
| RGB | rgb(63, 79, 31) |
| HSL | hsl(80, 44%, 22%) |
| OKLCH | oklch(40.2% 0.074 125) |
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 #3F4F1F | 8.93:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #3F4F1F | 2.34:1 | Fails | Lc 13.5 | Not readable |
| #3F4F1F text on white | 8.93:1 | AAA | Lc 90.4 | Preferred for body text |
| #3F4F1F text on black | 2.34:1 | Fails | Lc -11.9 | 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
#E7ECE0
oklch(93.6% 0.017 125.3)
-
Step 200
200
#D4DDC7
oklch(88.5% 0.031 125.2)
-
Step 300
300
#B8C7A0
oklch(80.8% 0.056 124.7)
-
Step 400
400
#94AB6C
oklch(70.8% 0.09 125)
-
Step 500
500
#7A9543
oklch(63.1% 0.114 124.7)
-
Step 600
600
#637F21
oklch(55.6% 0.123 124.9)
-
Step 700
700
#526B12
oklch(49% 0.115 124.8)
-
Step 800
800
#435813
oklch(42.8% 0.096 125.2)
-
Step 900
900 (this color)
#3F4F1F
oklch(40.2% 0.074 125)
-
Step 950
950
#212A0F
oklch(26.9% 0.047 124.7)
#3F4F1F 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) | #534A1A | 0.033 |
| Deuteranopia (no green cones) | #514922 | 0.035 |
| Tritanopia (no blue cones) | #424B44 | 0.060 |
| Achromatopsia (no color) | #494949 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F4F1F
#3F4F1F
oklch(40.2% 0.074 125)
- #523D68
#523D68
oklch(40.2% 0.074 305.8)
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 #3F4F1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.030
- Green Brown #544E03 ΔE 0.035
- Pine #2B5D34 ΔE 0.045
- Army Green #4B5D16 ΔE 0.052
- Mud Brown #60460F ΔE 0.057
- Dark Olive #373E02 ΔE 0.058
- Spruce #0A5F38 ΔE 0.059
- Forest #0B5509 ΔE 0.060
Use #3F4F1F 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.