#3B4E37
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.1% 0.045 140.2), rgb(59, 78, 55).
Aa
White text reads best on this color (9.00:1).
About this color
#3B4E37 is a dark, muted green. In OKLCH its lightness is 40%, its chroma 0.045 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.039 away. White text reads best on it, at 9.00:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.33:1 |
| White text | 9.00:1 |
Values
| HEX | #3B4E37 |
| RGB | rgb(59, 78, 55) |
| HSL | hsl(110, 17%, 26%) |
| OKLCH | oklch(40.1% 0.045 140.2) |
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 #3B4E37 | 9.00:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #3B4E37 | 2.33:1 | Fails | Lc 13.3 | Not readable |
| #3B4E37 text on white | 9.00:1 | AAA | Lc 90.7 | Preferred for body text |
| #3B4E37 text on black | 2.33:1 | Fails | Lc -11.6 | 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 900.
-
Step 50
50
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E6EBE5
oklch(93.5% 0.01 140.5)
-
Step 200
200
#D3DCD1
oklch(88.5% 0.018 140)
-
Step 300
300
#B6C6B2
oklch(80.9% 0.033 139.4)
-
Step 400
400
#8FA98A
oklch(70.6% 0.053 140.6)
-
Step 500
500
#73946D
oklch(63.1% 0.068 140.7)
-
Step 600
600
#5C7E54
oklch(55.6% 0.074 139.7)
-
Step 700
700
#4B6A45
oklch(49% 0.068 140.5)
-
Step 800
800
#3E5739
oklch(42.8% 0.057 140.4)
-
Step 900
900 (this color)
#3B4E37
oklch(40.1% 0.045 140.2)
-
Step 950
950
#1F2A1D
oklch(27% 0.028 140.7)
#3B4E37 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) | #4F4A36 | 0.032 |
| Deuteranopia (no green cones) | #4C4838 | 0.032 |
| Tritanopia (no blue cones) | #3A4C48 | 0.030 |
| Achromatopsia (no color) | #494949 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B4E37
#3B4E37
oklch(40.1% 0.045 140.2)
- #534057
#534057
oklch(40.1% 0.045 320.4)
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 #3B4E37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.039
- Dark Blue Green #005249 ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.052
- Pine #2B5D34 ΔE 0.053
- Dark Teal #014D4E ΔE 0.058
- Green Brown #544E03 ΔE 0.059
- Navy Green #35530A ΔE 0.059
- Deep Teal #00555A ΔE 0.063
Use #3B4E37 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.