#3F513A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.3% 0.044 138.9), rgb(63, 81, 58).
Aa
White text reads best on this color (8.57:1).
About this color
#3F513A is a dark, muted green. In OKLCH its lightness is 41%, its chroma 0.044 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.040 away. White text reads best on it, at 8.57:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.44:1 |
| White text | 8.57:1 |
Values
| HEX | #3F513A |
| RGB | rgb(63, 81, 58) |
| HSL | hsl(107, 17%, 27%) |
| OKLCH | oklch(41.3% 0.044 138.9) |
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 #3F513A | 8.57:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #3F513A | 2.44:1 | Fails | Lc 14.5 | Not readable |
| #3F513A text on white | 8.57:1 | AAA | Lc 89.5 | Fine for body text |
| #3F513A text on black | 2.44:1 | Fails | Lc -12.8 | 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 800.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE6
oklch(93.6% 0.008 139.4)
-
Step 200
200
#D4DBD3
oklch(88.4% 0.013 141.8)
-
Step 300
300
#B9C5B5
oklch(81% 0.026 137.8)
-
Step 400
400
#94A78F
oklch(70.7% 0.04 139.2)
-
Step 500
500
#7A9173
oklch(63% 0.051 138.4)
-
Step 600
600
#627C5B
oklch(55.6% 0.058 139.1)
-
Step 700
700
#51684B
oklch(49% 0.053 139.2)
-
Step 800
800 (this color)
#3F513A
oklch(41.3% 0.044 138.9)
-
Step 900
900
#384635
oklch(37.6% 0.034 140.1)
-
Step 950
950
#21291F
oklch(27% 0.021 139.4)
#3F513A 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) | #534D39 | 0.032 |
| Deuteranopia (no green cones) | #504B3B | 0.032 |
| Tritanopia (no blue cones) | #3E4F4B | 0.030 |
| Achromatopsia (no color) | #4C4C4C | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F513A
#3F513A
oklch(41.3% 0.044 138.9)
- #55445A
#55445A
oklch(41.3% 0.042 318.5)
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 #3F513A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.040
- Pine #2B5D34 ΔE 0.048
- Dark Blue Green #005249 ΔE 0.052
- Green Brown #544E03 ΔE 0.057
- Charcoal Grey #3C4142 ΔE 0.059
- Navy Green #35530A ΔE 0.060
- Spruce #0A5F38 ΔE 0.061
- Dark Green Blue #1F6357 ΔE 0.062
Use #3F513A 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.