#3F533F
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.9% 0.041 144.8), rgb(63, 83, 63).
Aa
White text reads best on this color (8.33:1).
About this color
#3F533F is a dark, muted green. In OKLCH its lightness is 42%, its chroma 0.041 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.038 away. White text reads best on it, at 8.33:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | muted (0.041) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.52:1 |
| White text | 8.33:1 |
Values
| HEX | #3F533F |
| RGB | rgb(63, 83, 63) |
| HSL | hsl(120, 14%, 29%) |
| OKLCH | oklch(41.9% 0.041 144.8) |
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 #3F533F | 8.33:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #3F533F | 2.52:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #3F533F text on white | 8.33:1 | AAA | Lc 88.7 | Fine for body text |
| #3F533F text on black | 2.52:1 | Fails | Lc -13.5 | 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 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
#D4DCD4
oklch(88.6% 0.014 145.5)
-
Step 300
300
#B8C5B7
oklch(80.9% 0.024 143.3)
-
Step 400
400
#92A792
oklch(70.6% 0.038 145.2)
-
Step 500
500
#779277
oklch(63.1% 0.05 145)
-
Step 600
600
#607C60
oklch(55.6% 0.054 144.8)
-
Step 700
700
#4F684F
oklch(49% 0.049 144.8)
-
Step 800
800 (this color)
#3F533F
oklch(41.9% 0.041 144.8)
-
Step 900
900
#374637
oklch(37.6% 0.032 144.9)
-
Step 950
950
#202920
oklch(26.9% 0.021 145)
#3F533F 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) | #544F3E | 0.033 |
| Deuteranopia (no green cones) | #514D40 | 0.033 |
| Tritanopia (no blue cones) | #3D524D | 0.024 |
| Achromatopsia (no color) | #4E4E4E | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F533F
#3F533F
oklch(41.9% 0.041 144.8)
- #594559
#594559
oklch(41.9% 0.042 326.3)
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 #3F533F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.038
- Pine #2B5D34 ΔE 0.047
- Dark Blue Green #005249 ΔE 0.052
- Dark Green Blue #1F6357 ΔE 0.055
- Deep Teal #00555A ΔE 0.059
- Spruce #0A5F38 ΔE 0.060
- Green Brown #544E03 ΔE 0.061
- Charcoal Grey #3C4142 ΔE 0.062
Use #3F533F 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.