#374E39
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.8% 0.045 146.9), rgb(55, 78, 57).
Aa
White text reads best on this color (9.08:1).
About this color
#374E39 is a dark, muted green. In OKLCH its lightness is 40%, its chroma 0.045 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.035 away. White text reads best on it, at 9.08:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.31:1 |
| White text | 9.08:1 |
Values
| HEX | #374E39 |
| RGB | rgb(55, 78, 57) |
| HSL | hsl(125, 17%, 26%) |
| OKLCH | oklch(39.8% 0.045 146.9) |
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 #374E39 | 9.08:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #374E39 | 2.31:1 | Fails | Lc 13.1 | Not readable |
| #374E39 text on white | 9.08:1 | AAA | Lc 90.9 | Preferred for body text |
| #374E39 text on black | 2.31:1 | Fails | Lc -11.5 | 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
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D1DDD2
oklch(88.5% 0.02 147.8)
-
Step 300
300
#B3C7B4
oklch(80.9% 0.034 146.6)
-
Step 400
400
#8BAA8D
oklch(70.6% 0.054 146.7)
-
Step 500
500
#6E9571
oklch(63.1% 0.069 146.7)
-
Step 600
600
#557F59
oklch(55.5% 0.075 146.8)
-
Step 700
700
#456C49
oklch(49.2% 0.071 146.9)
-
Step 800
800
#39583C
oklch(42.8% 0.059 146.8)
-
Step 900
900 (this color)
#374E39
oklch(39.8% 0.045 146.9)
-
Step 950
950
#1D2A1E
oklch(26.9% 0.028 146.7)
#374E39 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) | #4F4A38 | 0.037 |
| Deuteranopia (no green cones) | #4B473A | 0.037 |
| Tritanopia (no blue cones) | #344D48 | 0.026 |
| Achromatopsia (no color) | #484848 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374E39
#374E39
oklch(39.8% 0.045 146.9)
- #543F54
#543F54
oklch(39.8% 0.044 326.4)
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 #374E39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.035
- Dark Blue Green #005249 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.051
- Dark Teal #014D4E ΔE 0.052
- Pine #2B5D34 ΔE 0.053
- Deep Teal #00555A ΔE 0.058
- Evergreen #05472A ΔE 0.059
- Navy Green #35530A ΔE 0.061
Use #374E39 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.