#2F4737
Closest named color: Charcoal Grey (#3C4142). oklch(37.3% 0.04 154.8), rgb(47, 71, 55).
Aa
White text reads best on this color (10.10:1).
About this color
#2F4737 is a dark, muted green. In OKLCH its lightness is 37%, its chroma 0.040 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.037 away. White text reads best on it, at 10.10:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.07:1 |
| White text | 10.10:1 |
Values
| HEX | #2F4737 |
| RGB | rgb(47, 71, 55) |
| HSL | hsl(140, 20%, 23%) |
| OKLCH | oklch(37.3% 0.04 154.8) |
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 #2F4737 | 10.10:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #2F4737 | 2.07:1 | Fails | Lc 10.5 | Not readable |
| #2F4737 text on white | 10.10:1 | AAA | Lc 93.4 | Preferred for body text |
| #2F4737 text on black | 2.07:1 | Fails | Lc -9.1 | 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 900.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#D1DDD4
oklch(88.6% 0.018 153.5)
-
Step 300
300
#B2C7B8
oklch(80.9% 0.031 154.6)
-
Step 400
400
#89AA93
oklch(70.7% 0.049 154.6)
-
Step 500
500
#6B9579
oklch(63.1% 0.062 155)
-
Step 600
600
#527F62
oklch(55.5% 0.067 155.3)
-
Step 700
700
#436B51
oklch(49% 0.062 155)
-
Step 800
800
#375842
oklch(42.8% 0.053 154.4)
-
Step 900
900 (this color)
#2F4737
oklch(37.3% 0.04 154.8)
-
Step 950
950
#1C2A21
oklch(26.9% 0.025 156.1)
#2F4737 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) | #474336 | 0.037 |
| Deuteranopia (no green cones) | #434138 | 0.035 |
| Tritanopia (no blue cones) | #2B4643 | 0.022 |
| Achromatopsia (no color) | #424242 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4737
#2F4737
oklch(37.3% 0.04 154.8)
- #4E3849
#4E3849
oklch(37.2% 0.041 334.7)
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 #2F4737, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Teal #014D4E ΔE 0.044
- Dark Blue Green #005249 ΔE 0.044
- Evergreen #05472A ΔE 0.045
- Charcoal #264653 ΔE 0.049
- Onyx #343A40 ΔE 0.051
- Pine Green #0A481E ΔE 0.056
Use #2F4737 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.