#3F5309
Closest named color: Navy Green (#35530A). oklch(41.1% 0.097 124.6), rgb(63, 83, 9).
Aa
White text reads best on this color (8.56:1).
About this color
#3F5309 is a dark, moderately saturated brown. In OKLCH its lightness is 41%, its chroma 0.097 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 0.013 away. White text reads best on it, at 8.56:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.45:1 |
| White text | 8.56:1 |
Values
| HEX | #3F5309 |
| RGB | rgb(63, 83, 9) |
| HSL | hsl(76, 80%, 18%) |
| OKLCH | oklch(41.1% 0.097 124.6) |
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 #3F5309 | 8.56:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #3F5309 | 2.45:1 | Fails | Lc 14.7 | Not readable |
| #3F5309 text on white | 8.56:1 | AAA | Lc 89.3 | Fine for body text |
| #3F5309 text on black | 2.45:1 | Fails | Lc -12.9 | 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 800.
-
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
#94AB6B
oklch(70.8% 0.091 124.8)
-
Step 500
500
#7A9541
oklch(63% 0.116 124.5)
-
Step 600
600
#637F1C
oklch(55.5% 0.126 124.6)
-
Step 700
700
#526B0C
oklch(49% 0.117 124.5)
-
Step 800
800 (this color)
#3F5309
oklch(41.1% 0.097 124.6)
-
Step 900
900
#394816
oklch(37.7% 0.076 124.2)
-
Step 950
950
#212A0E
oklch(26.9% 0.048 124.4)
#3F5309 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) | #584D00 | 0.041 |
| Deuteranopia (no green cones) | #564C11 | 0.043 |
| Tritanopia (no blue cones) | #424E46 | 0.081 |
| Achromatopsia (no color) | #4C4C4C | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F5309
#3F5309
oklch(41.1% 0.097 124.6)
- #573B75
#573B75
oklch(41.1% 0.098 304.7)
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 #3F5309, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.013
- Green Brown #544E03 ΔE 0.035
- Army Green #4B5D16 ΔE 0.038
- Pine #2B5D34 ΔE 0.044
- Forest #0B5509 ΔE 0.048
- Camouflage Green #4B6113 ΔE 0.048
- Deep Green #02590F ΔE 0.050
- Spruce #0A5F38 ΔE 0.057
Use #3F5309 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.