#398E42
Closest named color: Fern Green (#548D44). oklch(57.6% 0.139 145.4), rgb(57, 142, 66).
Aa
Black text reads best on this color (5.12:1).
About this color
#398E42 is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.139 and its hue 145°. 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 (0.139) |
| Temperature | in between |
| Nearest name | Fern Green (#548D44) |
| Black text | 5.12:1 |
| White text | 4.10:1 |
Values
| HEX | #398E42 |
| RGB | rgb(57, 142, 66) |
| HSL | hsl(126, 43%, 39%) |
| OKLCH | oklch(57.6% 0.139 145.4) |
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 #398E42 | 4.10:1 | AA large text | Lc -73.3 | Content text, not long reading |
| Black text on #398E42 | 5.12:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #398E42 text on white | 4.10:1 | AA large text | Lc 67.8 | Content text, not long reading |
| #398E42 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
#CBE0CC
oklch(88.6% 0.035 146.6)
-
Step 300
300
#A8CCA9
oklch(80.9% 0.062 145.7)
-
Step 400
400
#78B17A
oklch(70.6% 0.099 145.3)
-
Step 500
500
#529D57
oklch(63% 0.127 145.2)
-
Step 600
600 (this color)
#398E42
oklch(57.6% 0.139 145.4)
-
Step 700
700
#24732E
oklch(49.1% 0.129 145.4)
-
Step 800
800
#205E27
oklch(42.8% 0.107 145.4)
-
Step 900
900
#204D24
oklch(37.7% 0.084 145.4)
-
Step 950
950
#142D16
oklch(27% 0.052 145.6)
#398E42 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) | #90823B | 0.105 |
| Deuteranopia (no green cones) | #857A48 | 0.106 |
| Tritanopia (no blue cones) | #288B7D | 0.084 |
| Achromatopsia (no color) | #7D7D7D | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398E42
#398E42
oklch(57.6% 0.139 145.4)
- #A259A5
#A259A5
oklch(57.7% 0.138 325.7)
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 #398E42, 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 0.030
- Kelley Green #009337 ΔE 0.031
- Light Forest Green #4F9153 ΔE 0.031
- Forest Green #228B22 ΔE 0.036
- Sap Green #5C8B15 ΔE 0.040
- Mossy Green #638B27 ΔE 0.041
- Moss Green #658B38 ΔE 0.041
Use #398E42 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.