#3F570B
Closest named color: Navy Green (#35530A). oklch(42.2% 0.102 126.6), rgb(63, 87, 11).
Aa
White text reads best on this color (8.14:1).
About this color
#3F570B is a dark, moderately saturated green. In OKLCH its lightness is 42%, its chroma 0.102 and its hue 127°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.020 away. White text reads best on it, at 8.14:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.57:1 |
| White text | 8.14:1 |
Values
| HEX | #3F570B |
| RGB | rgb(63, 87, 11) |
| HSL | hsl(79, 78%, 19%) |
| OKLCH | oklch(42.2% 0.102 126.6) |
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 #3F570B | 8.14:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #3F570B | 2.57:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #3F570B text on white | 8.14:1 | AAA | Lc 88.0 | Fine for body text |
| #3F570B text on black | 2.57:1 | Fails | Lc -14.1 | 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
#D3DEC6
oklch(88.6% 0.034 127.3)
-
Step 300
300
#B6C89F
oklch(80.8% 0.059 127)
-
Step 400
400
#91AC6A
oklch(70.8% 0.095 126.8)
-
Step 500
500
#76963F
oklch(63% 0.121 126.5)
-
Step 600
600
#5F8018
oklch(55.5% 0.132 126.4)
-
Step 700
700
#4E6C07
oklch(49% 0.123 126.6)
-
Step 800
800 (this color)
#3F570B
oklch(42.2% 0.102 126.6)
-
Step 900
900
#374915
oklch(37.8% 0.079 126.2)
-
Step 950
950
#202B0E
oklch(27.1% 0.05 126.8)
#3F570B 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) | #5C5000 | 0.047 |
| Deuteranopia (no green cones) | #594F13 | 0.048 |
| Tritanopia (no blue cones) | #425249 | 0.082 |
| Achromatopsia (no color) | #4F4F4F | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F570B
#3F570B
oklch(42.2% 0.102 126.6)
- #5C3D79
#5C3D79
oklch(42.3% 0.102 306.4)
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 #3F570B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.020
- Army Green #4B5D16 ΔE 0.028
- Camouflage Green #4B6113 ΔE 0.037
- Pine #2B5D34 ΔE 0.039
- Green Brown #544E03 ΔE 0.040
- Deep Green #02590F ΔE 0.048
- Forest #0B5509 ΔE 0.049
- Spruce #0A5F38 ΔE 0.052
Use #3F570B 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.