#378E47
Closest named color: Fern Green (#548D44). oklch(57.7% 0.135 147.1), rgb(55, 142, 71).
Aa
Black text reads best on this color (5.12:1).
About this color
#378E47 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.135 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.025 away. Black text reads best on it, at 5.12:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.135) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #378E47 |
| RGB | rgb(55, 142, 71) |
| HSL | hsl(131, 44%, 39%) |
| OKLCH | oklch(57.7% 0.135 147.1) |
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 #378E47 | 4.09:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #378E47 | 5.12:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #378E47 text on white | 4.09:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #378E47 text on black | 5.12:1 | AA | Lc -33.8 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE3
oklch(93.6% 0.017 145.4)
-
Step 200
200
#CBE0CD
oklch(88.6% 0.034 148)
-
Step 300
300
#A7CCAA
oklch(80.9% 0.062 147.2)
-
Step 400
400
#77B17D
oklch(70.6% 0.097 147)
-
Step 500
500
#509D5C
oklch(63% 0.123 147.4)
-
Step 600
600 (this color)
#378E47
oklch(57.7% 0.135 147.1)
-
Step 700
700
#217333
oklch(49.1% 0.125 147.3)
-
Step 800
800
#1E5E2B
oklch(42.8% 0.104 147.3)
-
Step 900
900
#1F4D27
oklch(37.7% 0.081 147.4)
-
Step 950
950
#142D17
oklch(27% 0.051 146.6)
#378E47 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) | #908241 | 0.107 |
| Deuteranopia (no green cones) | #847A4C | 0.105 |
| Tritanopia (no blue cones) | #228B7D | 0.078 |
| Achromatopsia (no color) | #7D7D7D | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #378E47
#378E47
oklch(57.7% 0.135 147.1)
- #A25AA2
#A25AA2
oklch(57.7% 0.134 327.1)
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 #378E47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.025
- Sea Green #2E8B57 ΔE 0.025
- Light Forest Green #4F9153 ΔE 0.029
- Kelley Green #009337 ΔE 0.035
- Viridian #1E9167 ΔE 0.039
- Forest Green #228B22 ΔE 0.040
- Moss Green #658B38 ΔE 0.043
- Mossy Green #638B27 ΔE 0.044
Use #378E47 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.