#398B50
Closest named color: Sea Green (#2E8B57). oklch(57.1% 0.121 150.1), rgb(57, 139, 80).
Aa
Black text reads best on this color (4.98:1).
About this color
#398B50 is a medium-dark, moderately saturated green. In OKLCH its lightness is 57%, its chroma 0.121 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.011 away. Black text reads best on it, at 4.98:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.98:1 |
| White text | 4.21:1 |
Values
| HEX | #398B50 |
| RGB | rgb(57, 139, 80) |
| HSL | hsl(137, 42%, 38%) |
| OKLCH | oklch(57.1% 0.121 150.1) |
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 #398B50 | 4.21:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #398B50 | 4.98:1 | AA | Lc 35.3 | Non-text elements, placeholder text |
| #398B50 text on white | 4.21:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #398B50 text on black | 4.98:1 | AA | Lc -32.8 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE4
oklch(93.6% 0.016 148.4)
-
Step 200
200
#CCDFCF
oklch(88.5% 0.03 150.1)
-
Step 300
300
#A8CBAF
oklch(80.9% 0.054 151)
-
Step 400
400
#79B084
oklch(70.7% 0.086 150)
-
Step 500
500
#539C65
oklch(63% 0.111 150.2)
-
Step 600
600 (this color)
#398B50
oklch(57.1% 0.121 150.1)
-
Step 700
700
#26723D
oklch(49.2% 0.112 150.1)
-
Step 800
800
#215D32
oklch(42.7% 0.094 149.9)
-
Step 900
900
#214C2C
oklch(37.6% 0.073 150)
-
Step 950
950
#142D1A
oklch(27.1% 0.047 150)
#398B50 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) | #8C804C | 0.101 |
| Deuteranopia (no green cones) | #817854 | 0.099 |
| Tritanopia (no blue cones) | #23897C | 0.065 |
| Achromatopsia (no color) | #7B7B7B | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398B50
#398B50
oklch(57.1% 0.121 150.1)
- #9F5B99
#9F5B99
oklch(57.1% 0.121 330.3)
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 #398B50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.011
- Fern Green #548D44 ΔE 0.028
- Light Forest Green #4F9153 ΔE 0.028
- Viridian #1E9167 ΔE 0.030
- Dark Sage #598556 ΔE 0.037
- Jungle Green #048243 ΔE 0.042
- Moss Green #658B38 ΔE 0.046
- Kelley Green #009337 ΔE 0.050
Use #398B50 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.