#2F4339
Closest named color: Charcoal Grey (#3C4142). oklch(36.2% 0.031 162.7), rgb(47, 67, 57).
Aa
White text reads best on this color (10.59:1).
About this color
#2F4339 is a dark, muted green. In OKLCH its lightness is 36%, its chroma 0.031 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.028 away. White text reads best on it, at 10.59:1.
| Hue family | Greens |
| Lightness | dark (36%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.98:1 |
| White text | 10.59:1 |
Values
| HEX | #2F4339 |
| RGB | rgb(47, 67, 57) |
| HSL | hsl(150, 18%, 22%) |
| OKLCH | oklch(36.2% 0.031 162.7) |
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 #2F4339 | 10.59:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #2F4339 | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #2F4339 text on white | 10.59:1 | AAA | Lc 94.5 | Preferred for body text |
| #2F4339 text on black | 1.98:1 | Fails | Lc -8.0 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD7
oklch(88.5% 0.013 164.8)
-
Step 300
300
#B4C6BC
oklch(81% 0.024 161.6)
-
Step 400
400
#8DA89A
oklch(70.7% 0.036 162.8)
-
Step 500
500
#709381
oklch(63.2% 0.047 162.3)
-
Step 600
600
#587D6B
oklch(55.6% 0.05 163.1)
-
Step 700
700
#486959
oklch(49% 0.046 163.1)
-
Step 800
800
#3B5649
oklch(42.7% 0.039 163.4)
-
Step 900
900 (this color)
#2F4339
oklch(36.2% 0.031 162.7)
-
Step 950
950
#1E2A24
oklch(27.2% 0.02 163)
#2F4339 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) | #424039 | 0.030 |
| Deuteranopia (no green cones) | #3F3E3A | 0.029 |
| Tritanopia (no blue cones) | #2B4340 | 0.012 |
| Achromatopsia (no color) | #3F3F3F | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4339
#2F4339
oklch(36.2% 0.031 162.7)
- #4A3742
#4A3742
oklch(36.2% 0.032 343.2)
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 #2F4339, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.028
- Onyx #343A40 ΔE 0.037
- Charcoal #264653 ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.045
- Dark Teal #014D4E ΔE 0.046
- Evergreen #05472A ΔE 0.050
- Dark Blue Green #005249 ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.054
Use #2F4339 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.