#375447
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.9% 0.041 164.8), rgb(55, 84, 71).
Aa
White text reads best on this color (8.32:1).
About this color
#375447 is a dark, muted green. In OKLCH its lightness is 42%, its chroma 0.041 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.026 away. White text reads best on it, at 8.32:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | muted (0.041) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #375447 |
| RGB | rgb(55, 84, 71) |
| HSL | hsl(153, 21%, 27%) |
| OKLCH | oklch(41.9% 0.041 164.8) |
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 #375447 | 8.32:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #375447 | 2.52:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #375447 text on white | 8.32:1 | AAA | Lc 88.7 | Fine for body text |
| #375447 text on black | 2.52:1 | Fails | Lc -13.5 | 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 800.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D2DCD7
oklch(88.5% 0.013 164.8)
-
Step 300
300
#B3C6BD
oklch(80.9% 0.024 165.7)
-
Step 400
400
#8BA99B
oklch(70.8% 0.039 165.3)
-
Step 500
500
#6E9382
oklch(63.1% 0.048 165)
-
Step 600
600
#557E6B
oklch(55.7% 0.055 164)
-
Step 700
700
#456A5A
oklch(49.1% 0.05 165.5)
-
Step 800
800 (this color)
#375447
oklch(41.9% 0.041 164.8)
-
Step 900
900
#31473D
oklch(37.6% 0.032 164.9)
-
Step 950
950
#1D2A24
oklch(27.1% 0.021 164.8)
#375447 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) | #535046 | 0.041 |
| Deuteranopia (no green cones) | #4E4D48 | 0.039 |
| Tritanopia (no blue cones) | #305450 | 0.016 |
| Achromatopsia (no color) | #4E4E4E | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375447
#375447
oklch(41.9% 0.041 164.8)
- #5D4452
#5D4452
oklch(41.9% 0.04 344.3)
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 #375447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.026
- Dark Blue Green #005249 ΔE 0.042
- Deep Teal #00555A ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.048
- Pine #2B5D34 ΔE 0.050
- Dark Teal #014D4E ΔE 0.052
- Spruce #0A5F38 ΔE 0.060
- Charcoal Grey #3C4142 ΔE 0.060
Use #375447 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.