#378D46
Closest named color: Sea Green (#2E8B57). oklch(57.4% 0.134 146.9), rgb(55, 141, 70).
Aa
Black text reads best on this color (5.06:1).
About this color
#378D46 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.134 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.024 away. Black text reads best on it, at 5.06:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.06:1 |
| White text | 4.14:1 |
Values
| HEX | #378D46 |
| RGB | rgb(55, 141, 70) |
| HSL | hsl(130, 44%, 38%) |
| OKLCH | oklch(57.4% 0.134 146.9) |
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 #378D46 | 4.14:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #378D46 | 5.06:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #378D46 text on white | 4.14:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #378D46 text on black | 5.06:1 | AA | Lc -33.4 | 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
#A8CCAA
oklch(81% 0.061 146.5)
-
Step 400
400
#77B17D
oklch(70.6% 0.097 147)
-
Step 500
500
#519D5B
oklch(63% 0.124 146.8)
-
Step 600
600 (this color)
#378D46
oklch(57.4% 0.134 146.9)
-
Step 700
700
#227333
oklch(49.1% 0.125 147.1)
-
Step 800
800
#1F5E2B
oklch(42.8% 0.104 147.1)
-
Step 900
900
#204D27
oklch(37.8% 0.081 147)
-
Step 950
950
#142D17
oklch(27% 0.051 146.6)
#378D46 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) | #8F8140 | 0.106 |
| Deuteranopia (no green cones) | #84794B | 0.106 |
| Tritanopia (no blue cones) | #238A7C | 0.078 |
| Achromatopsia (no color) | #7C7C7C | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #378D46
#378D46
oklch(57.4% 0.134 146.9)
- #A159A1
#A159A1
oklch(57.4% 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 #378D46, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.024
- Fern Green #548D44 ΔE 0.025
- Light Forest Green #4F9153 ΔE 0.030
- Kelley Green #009337 ΔE 0.035
- Forest Green #228B22 ΔE 0.039
- Viridian #1E9167 ΔE 0.040
- Moss Green #658B38 ΔE 0.043
- Jungle Green #048243 ΔE 0.044
Use #378D46 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.