#3F503E
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.1% 0.036 143.4), rgb(63, 80, 62).
Aa
White text reads best on this color (8.64:1).
About this color
#3F503E is a dark, muted green. In OKLCH its lightness is 41%, its chroma 0.036 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.034 away. White text reads best on it, at 8.64:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | muted (0.036) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.42:1 |
| White text | 8.64:1 |
Values
| HEX | #3F503E |
| RGB | rgb(63, 80, 62) |
| HSL | hsl(117, 13%, 28%) |
| OKLCH | oklch(41.1% 0.036 143.4) |
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 #3F503E | 8.64:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #3F503E | 2.42:1 | Fails | Lc 14.3 | Not readable |
| #3F503E text on white | 8.64:1 | AAA | Lc 89.7 | Fine for body text |
| #3F503E text on black | 2.42:1 | Fails | Lc -12.6 | 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
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D5DBD4
oklch(88.5% 0.011 141.3)
-
Step 300
300
#B9C4B8
oklch(80.8% 0.021 143)
-
Step 400
400
#94A693
oklch(70.6% 0.034 143.8)
-
Step 500
500
#7A9179
oklch(63.2% 0.044 143.9)
-
Step 600
600
#637B62
oklch(55.6% 0.047 143.9)
-
Step 700
700
#526751
oklch(49% 0.043 143.7)
-
Step 800
800 (this color)
#3F503E
oklch(41.1% 0.036 143.4)
-
Step 900
900
#394638
oklch(37.8% 0.029 143.1)
-
Step 950
950
#212921
oklch(27% 0.018 145)
#3F503E 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) | #514D3D | 0.028 |
| Deuteranopia (no green cones) | #4E4B3F | 0.027 |
| Tritanopia (no blue cones) | #3E4F4B | 0.023 |
| Achromatopsia (no color) | #4C4C4C | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F503E
#3F503E
oklch(41.1% 0.036 143.4)
- #554456
#554456
oklch(41.1% 0.037 324.4)
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 #3F503E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.034
- Dark Blue Green #005249 ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.053
- Pine #2B5D34 ΔE 0.054
- Deep Teal #00555A ΔE 0.059
- Dark Teal #014D4E ΔE 0.060
- Dark Green Blue #1F6357 ΔE 0.063
- Green Brown #544E03 ΔE 0.063
Use #3F503E 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.