#398F4E
Closest named color: Sea Green (#2E8B57). oklch(58.1% 0.128 148.9), rgb(57, 143, 78).
Aa
Black text reads best on this color (5.21:1).
About this color
#398F4E is a medium-dark, moderately saturated green. In OKLCH its lightness is 58%, its chroma 0.128 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.021 away. Black text reads best on it, at 5.21:1.
| Hue family | Greens |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 5.21:1 |
| White text | 4.02:1 |
Values
| HEX | #398F4E |
| RGB | rgb(57, 143, 78) |
| HSL | hsl(135, 43%, 39%) |
| OKLCH | oklch(58.1% 0.128 148.9) |
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 #398F4E | 4.02:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #398F4E | 5.21:1 | AA | Lc 36.8 | Non-text elements, placeholder text |
| #398F4E text on white | 4.02:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #398F4E text on black | 5.21:1 | AA | Lc -34.4 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE4
oklch(93.6% 0.016 148.4)
-
Step 200
200
#CBDFCE
oklch(88.4% 0.031 149.8)
-
Step 300
300
#A8CCAD
oklch(81% 0.058 148.9)
-
Step 400
400
#77B181
oklch(70.7% 0.092 149)
-
Step 500
500
#519D61
oklch(63.1% 0.117 148.9)
-
Step 600
600 (this color)
#398F4E
oklch(58.1% 0.128 148.9)
-
Step 700
700
#227338
oklch(49.2% 0.12 148.7)
-
Step 800
800
#1F5D2F
oklch(42.6% 0.098 148.9)
-
Step 900
900
#204D2A
oklch(37.8% 0.077 148.8)
-
Step 950
950
#142D19
oklch(27% 0.048 148.8)
#398F4E 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) | #908349 | 0.105 |
| Deuteranopia (no green cones) | #857B52 | 0.104 |
| Tritanopia (no blue cones) | #238C7F | 0.073 |
| Achromatopsia (no color) | #7F7F7F | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #398F4E
#398F4E
oklch(58.1% 0.128 148.9)
- #A35CA0
#A35CA0
oklch(58% 0.129 328.6)
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 #398F4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.021
- Light Forest Green #4F9153 ΔE 0.022
- Fern Green #548D44 ΔE 0.023
- Viridian #1E9167 ΔE 0.032
- Kelley Green #009337 ΔE 0.041
- Moss Green #658B38 ΔE 0.042
- Dark Sage #598556 ΔE 0.045
- Mossy Green #638B27 ΔE 0.046
Use #398F4E 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.