#378D48
Closest named color: Sea Green (#2E8B57). oklch(57.4% 0.132 147.5), rgb(55, 141, 72).
Aa
Black text reads best on this color (5.06:1).
About this color
#378D48 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.132 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.022 away. Black text reads best on it, at 5.06:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.06:1 |
| White text | 4.14:1 |
Values
| HEX | #378D48 |
| RGB | rgb(55, 141, 72) |
| HSL | hsl(132, 44%, 38%) |
| OKLCH | oklch(57.4% 0.132 147.5) |
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 #378D48 | 4.14:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #378D48 | 5.06:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #378D48 text on white | 4.14:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #378D48 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
#A8CCAB
oklch(81% 0.06 147.3)
-
Step 400
400
#77B17E
oklch(70.7% 0.095 147.5)
-
Step 500
500
#519D5D
oklch(63.1% 0.122 147.5)
-
Step 600
600 (this color)
#378D48
oklch(57.4% 0.132 147.5)
-
Step 700
700
#227334
oklch(49.2% 0.124 147.4)
-
Step 800
800
#1F5E2C
oklch(42.8% 0.103 147.5)
-
Step 900
900
#204D28
oklch(37.8% 0.08 147.6)
-
Step 950
950
#142D18
oklch(27% 0.05 147.7)
#378D48 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) | #8F8142 | 0.106 |
| Deuteranopia (no green cones) | #83794D | 0.104 |
| Tritanopia (no blue cones) | #228A7D | 0.078 |
| Achromatopsia (no color) | #7C7C7C | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #378D48
#378D48
oklch(57.4% 0.132 147.5)
- #A159A0
#A159A0
oklch(57.3% 0.133 327.6)
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 #378D48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.022
- Fern Green #548D44 ΔE 0.025
- Light Forest Green #4F9153 ΔE 0.029
- Kelley Green #009337 ΔE 0.037
- Viridian #1E9167 ΔE 0.038
- Forest Green #228B22 ΔE 0.042
- Moss Green #658B38 ΔE 0.043
- Jungle Green #048243 ΔE 0.044
Use #378D48 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.