#375643
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.3% 0.049 156.7), rgb(55, 86, 67).
Aa
White text reads best on this color (8.15:1).
About this color
#375643 is a dark, muted green. In OKLCH its lightness is 42%, its chroma 0.049 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.037 away. White text reads best on it, at 8.15:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #375643 |
| RGB | rgb(55, 86, 67) |
| HSL | hsl(143, 22%, 28%) |
| OKLCH | oklch(42.3% 0.049 156.7) |
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 #375643 | 8.15:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #375643 | 2.57:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #375643 text on white | 8.15:1 | AAA | Lc 88.2 | Fine for body text |
| #375643 text on black | 2.57:1 | Fails | Lc -14.0 | 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 800.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6ECE8
oklch(93.7% 0.008 157.1)
-
Step 200
200
#D1DCD5
oklch(88.4% 0.015 158.2)
-
Step 300
300
#B3C6B9
oklch(80.8% 0.027 155.8)
-
Step 400
400
#8AAA95
oklch(70.8% 0.047 156.3)
-
Step 500
500
#6C947B
oklch(63% 0.058 156.9)
-
Step 600
600
#547F64
oklch(55.7% 0.064 156.1)
-
Step 700
700
#446B53
oklch(49.1% 0.059 156.5)
-
Step 800
800 (this color)
#375643
oklch(42.3% 0.049 156.7)
-
Step 900
900
#314839
oklch(37.8% 0.038 155.5)
-
Step 950
950
#1D2A22
oklch(27% 0.023 157.4)
#375643 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) | #565142 | 0.046 |
| Deuteranopia (no green cones) | #514E44 | 0.044 |
| Tritanopia (no blue cones) | #315551 | 0.024 |
| Achromatopsia (no color) | #4F4F4F | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375643
#375643
oklch(42.3% 0.049 156.7)
- #5F4458
#5F4458
oklch(42.3% 0.048 336.1)
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 #375643, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.037
- Pine #2B5D34 ΔE 0.040
- Dark Green Blue #1F6357 ΔE 0.044
- Dark Blue Green #005249 ΔE 0.045
- Spruce #0A5F38 ΔE 0.051
- Deep Teal #00555A ΔE 0.051
- Dark Teal #014D4E ΔE 0.059
- Petrol #005F6A ΔE 0.064
Use #375643 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.