#398C3D
Closest named color: Fern Green (#548D44). oklch(57% 0.14 144.3), rgb(57, 140, 61).
Aa
Black text reads best on this color (4.99:1).
About this color
#398C3D is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.140 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern Green (#548D44), ΔE 0.028 away. Black text reads best on it, at 4.99:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #398C3D |
| RGB | rgb(57, 140, 61) |
| HSL | hsl(123, 42%, 39%) |
| OKLCH | oklch(57% 0.14 144.3) |
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 #398C3D | 4.20:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #398C3D | 4.99:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #398C3D text on white | 4.20:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #398C3D text on black | 4.99:1 | AA | Lc -33.0 | 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
#E3EDE2
oklch(93.6% 0.018 142.8)
-
Step 200
200
#CCE0CB
oklch(88.6% 0.036 144)
-
Step 300
300
#A8CCA7
oklch(80.9% 0.064 144.3)
-
Step 400
400
#79B178
oklch(70.7% 0.101 144)
-
Step 500
500
#539D55
oklch(63% 0.129 144.4)
-
Step 600
600 (this color)
#398C3D
oklch(57% 0.14 144.3)
-
Step 700
700
#26732B
oklch(49.2% 0.131 144.3)
-
Step 800
800
#215E25
oklch(42.8% 0.109 144.5)
-
Step 900
900
#214D23
oklch(37.7% 0.085 144.5)
-
Step 950
950
#142D15
oklch(26.9% 0.053 144.7)
#398C3D 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) | #8F8036 | 0.105 |
| Deuteranopia (no green cones) | #847943 | 0.104 |
| Tritanopia (no blue cones) | #2A887A | 0.087 |
| Achromatopsia (no color) | #7B7B7B | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398C3D
#398C3D
oklch(57% 0.14 144.3)
- #9F57A5
#9F57A5
oklch(57% 0.14 324.3)
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 #398C3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern Green #548D44 ΔE 0.028
- Kelley Green #009337 ΔE 0.031
- Forest Green #228B22 ΔE 0.031
- Sea Green #2E8B57 ΔE 0.032
- Light Forest Green #4F9153 ΔE 0.037
- Sap Green #5C8B15 ΔE 0.038
- Mossy Green #638B27 ΔE 0.041
- Emerald Green #028F1E ΔE 0.041
Use #398C3D 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.