#3F4E1B
Closest named color: Navy Green (#35530A). oklch(39.9% 0.077 123.7), rgb(63, 78, 27).
Aa
White text reads best on this color (9.06:1).
About this color
#3F4E1B is a dark, moderately saturated brown. In OKLCH its lightness is 40%, its chroma 0.077 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 0.028 away. White text reads best on it, at 9.06:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #3F4E1B |
| RGB | rgb(63, 78, 27) |
| HSL | hsl(78, 49%, 21%) |
| OKLCH | oklch(39.9% 0.077 123.7) |
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 #3F4E1B | 9.06:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #3F4E1B | 2.31:1 | Fails | Lc 13.2 | Not readable |
| #3F4E1B text on white | 9.06:1 | AAA | Lc 90.8 | Preferred for body text |
| #3F4E1B text on black | 2.31:1 | Fails | Lc -11.5 | 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 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
#D5DDC6
oklch(88.5% 0.032 122.7)
-
Step 300
300
#B9C79F
oklch(80.8% 0.057 123.3)
-
Step 400
400
#95AA69
oklch(70.6% 0.092 123.3)
-
Step 500
500
#7B953E
oklch(63.1% 0.118 123.7)
-
Step 600
600
#647F17
oklch(55.6% 0.128 123.9)
-
Step 700
700
#536B06
oklch(49.1% 0.119 123.8)
-
Step 800
800
#44570D
oklch(42.6% 0.098 123.7)
-
Step 900
900 (this color)
#3F4E1B
oklch(39.9% 0.077 123.7)
-
Step 950
950
#222A0E
oklch(27% 0.047 122.9)
#3F4E1B 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) | #534915 | 0.034 |
| Deuteranopia (no green cones) | #51481E | 0.035 |
| Tritanopia (no blue cones) | #424A43 | 0.063 |
| Achromatopsia (no color) | #494949 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F4E1B
#3F4E1B
oklch(39.9% 0.077 123.7)
- #503C69
#503C69
oklch(39.8% 0.077 303.6)
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 #3F4E1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.028
- Green Brown #544E03 ΔE 0.034
- Pine #2B5D34 ΔE 0.049
- Army Green #4B5D16 ΔE 0.053
- Dark Olive #373E02 ΔE 0.054
- Mud Brown #60460F ΔE 0.057
- Forest #0B5509 ΔE 0.059
- Pine Green #0A481E ΔE 0.061
Use #3F4E1B 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.