#2D4437
Closest named color: Charcoal Grey (#3C4142). oklch(36.3% 0.037 159.1), rgb(45, 68, 55).
Aa
White text reads best on this color (10.53:1).
About this color
#2D4437 is a dark, muted green. In OKLCH its lightness is 36%, its chroma 0.037 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.034 away. White text reads best on it, at 10.53:1.
| Hue family | Greens |
| Lightness | dark (36%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.99:1 |
| White text | 10.53:1 |
Values
| HEX | #2D4437 |
| RGB | rgb(45, 68, 55) |
| HSL | hsl(146, 20%, 22%) |
| OKLCH | oklch(36.3% 0.037 159.1) |
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 #2D4437 | 10.53:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #2D4437 | 1.99:1 | Fails | Lc 9.5 | Not readable |
| #2D4437 text on white | 10.53:1 | AAA | Lc 94.4 | Preferred for body text |
| #2D4437 text on black | 1.99:1 | Fails | Lc -8.2 | 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
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D1DCD5
oklch(88.4% 0.015 158.2)
-
Step 300
300
#B2C6BA
oklch(80.8% 0.027 159.4)
-
Step 400
400
#8AA997
oklch(70.6% 0.043 159.6)
-
Step 500
500
#6C947D
oklch(63% 0.056 159.1)
-
Step 600
600
#537F66
oklch(55.7% 0.062 158.6)
-
Step 700
700
#446B55
oklch(49.2% 0.057 158.7)
-
Step 800
800
#385746
oklch(42.7% 0.046 159.6)
-
Step 900
900 (this color)
#2D4437
oklch(36.3% 0.037 159.1)
-
Step 950
950
#1D2A22
oklch(27% 0.023 157.4)
#2D4437 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) | #444136 | 0.035 |
| Deuteranopia (no green cones) | #403E38 | 0.034 |
| Tritanopia (no blue cones) | #284440 | 0.016 |
| Achromatopsia (no color) | #3F3F3F | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4437
#2D4437
oklch(36.3% 0.037 159.1)
- #4B3744
#4B3744
oklch(36.4% 0.035 339.9)
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 #2D4437, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.034
- Onyx #343A40 ΔE 0.043
- Evergreen #05472A ΔE 0.045
- Dark Teal #014D4E ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.046
- Charcoal #264653 ΔE 0.046
- Dark Blue Green #005249 ΔE 0.050
- Pine Green #0A481E ΔE 0.058
Use #2D4437 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.