#2F4337
Closest named color: Charcoal Grey (#3C4142). oklch(36.2% 0.033 157.9), rgb(47, 67, 55).
Aa
White text reads best on this color (10.61:1).
About this color
#2F4337 is a dark, muted green. In OKLCH its lightness is 36%, its chroma 0.033 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.031 away. White text reads best on it, at 10.61:1.
| Hue family | Greens |
| Lightness | dark (36%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.97:1 |
| White text | 10.61:1 |
Values
| HEX | #2F4337 |
| RGB | rgb(47, 67, 55) |
| HSL | hsl(144, 18%, 22%) |
| OKLCH | oklch(36.2% 0.033 157.9) |
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 #2F4337 | 10.61:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #2F4337 | 1.97:1 | Fails | Lc 9.3 | Not readable |
| #2F4337 text on white | 10.61:1 | AAA | Lc 94.6 | Preferred for body text |
| #2F4337 text on black | 1.97:1 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD6
oklch(88.5% 0.013 159.9)
-
Step 300
300
#B4C6BB
oklch(81% 0.025 159)
-
Step 400
400
#8DA897
oklch(70.6% 0.039 157.6)
-
Step 500
500
#70937E
oklch(63.1% 0.05 158.3)
-
Step 600
600
#587D67
oklch(55.5% 0.054 158)
-
Step 700
700
#486A56
oklch(49.2% 0.051 158.1)
-
Step 800
800
#3B5646
oklch(42.6% 0.042 158)
-
Step 900
900 (this color)
#2F4337
oklch(36.2% 0.033 157.9)
-
Step 950
950
#1E2A23
oklch(27.1% 0.021 159)
#2F4337 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) | #434036 | 0.031 |
| Deuteranopia (no green cones) | #3F3E38 | 0.029 |
| Tritanopia (no blue cones) | #2B4340 | 0.016 |
| Achromatopsia (no color) | #3F3F3F | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4337
#2F4337
oklch(36.2% 0.033 157.9)
- #493744
#493744
oklch(36.2% 0.033 336.5)
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 #2F4337, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.031
- Onyx #343A40 ΔE 0.039
- Charcoal #264653 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.047
- Dark Teal #014D4E ΔE 0.048
- Evergreen #05472A ΔE 0.048
- Dark Blue Green #005249 ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.057
Use #2F4337 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.