#397F4E
Closest named color: Jungle Green (#048243). oklch(53.8% 0.104 151.2), rgb(57, 127, 78).
Aa
White text reads best on this color (4.86:1).
About this color
#397F4E is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.104 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.033 away. White text reads best on it, at 4.86:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.31:1 |
| White text | 4.86:1 |
Values
| HEX | #397F4E |
| RGB | rgb(57, 127, 78) |
| HSL | hsl(138, 38%, 36%) |
| OKLCH | oklch(53.8% 0.104 151.2) |
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 #397F4E | 4.86:1 | AA | Lc -78.9 | Fine for body text |
| Black text on #397F4E | 4.31:1 | AA large text | Lc 30.6 | Non-text elements, placeholder text |
| #397F4E text on white | 4.86:1 | AA | Lc 73.5 | Content text, not long reading |
| #397F4E text on black | 4.31:1 | AA large text | Lc -28.2 | Dividers and decoration only |
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
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4EDE5
oklch(93.7% 0.014 148.8)
-
Step 200
200
#CDDED1
oklch(88.4% 0.025 152.8)
-
Step 300
300
#ABCAB2
oklch(80.9% 0.047 152)
-
Step 400
400
#7EAE89
oklch(70.6% 0.074 151.2)
-
Step 500
500
#5B9A6B
oklch(63.1% 0.096 151)
-
Step 600
600 (this color)
#397F4E
oklch(53.8% 0.104 151.2)
-
Step 700
700
#307043
oklch(49.1% 0.098 151)
-
Step 800
800
#295B38
oklch(42.6% 0.08 151.5)
-
Step 900
900
#264B30
oklch(37.7% 0.063 151.1)
-
Step 950
950
#172C1C
oklch(27% 0.04 150.6)
#397F4E 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) | #7F754B | 0.088 |
| Deuteranopia (no green cones) | #766F51 | 0.087 |
| Tritanopia (no blue cones) | #287D73 | 0.057 |
| Achromatopsia (no color) | #717171 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397F4E
#397F4E
oklch(53.8% 0.104 151.2)
- #90568A
#90568A
oklch(53.7% 0.105 330.7)
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 #397F4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.033
- Sea Green #2E8B57 ΔE 0.035
- Dark Sage #598556 ΔE 0.041
- Military Green #667C3E ΔE 0.048
- Viridian #1E9167 ΔE 0.054
- Muddy Green #657432 ΔE 0.054
- Fern Green #548D44 ΔE 0.056
- Swamp #698339 ΔE 0.058
Use #397F4E 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.