#397E4B
Closest named color: Jungle Green (#048243). oklch(53.5% 0.106 150), rgb(57, 126, 75).
Aa
White text reads best on this color (4.92:1).
About this color
#397E4B is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.106 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.032 away. White text reads best on it, at 4.92:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.25:1 |
| White text | 4.92:1 |
Values
| HEX | #397E4B |
| RGB | rgb(57, 126, 75) |
| HSL | hsl(136, 38%, 36%) |
| OKLCH | oklch(53.5% 0.106 150) |
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 #397E4B | 4.92:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #397E4B | 4.25:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #397E4B text on white | 4.92:1 | AA | Lc 73.9 | Content text, not long reading |
| #397E4B text on black | 4.25:1 | AA large text | Lc -27.8 | 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
#CDDED0
oklch(88.4% 0.026 150.7)
-
Step 300
300
#ACCAB1
oklch(81% 0.047 150)
-
Step 400
400
#7EAE88
oklch(70.6% 0.075 150.5)
-
Step 500
500
#5C9A6A
oklch(63.1% 0.097 150.1)
-
Step 600
600 (this color)
#397E4B
oklch(53.5% 0.106 150)
-
Step 700
700
#317042
oklch(49.1% 0.098 150.2)
-
Step 800
800
#2A5B36
oklch(42.6% 0.081 149.8)
-
Step 900
900
#274B2F
oklch(37.7% 0.064 149.7)
-
Step 950
950
#172C1C
oklch(27% 0.04 150.6)
#397E4B 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) | #7F7447 | 0.089 |
| Deuteranopia (no green cones) | #756E4E | 0.086 |
| Tritanopia (no blue cones) | #2A7C71 | 0.058 |
| Achromatopsia (no color) | #707070 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397E4B
#397E4B
oklch(53.5% 0.106 150)
- #8F558A
#8F558A
oklch(53.4% 0.106 330.1)
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 #397E4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.032
- Sea Green #2E8B57 ΔE 0.038
- Dark Sage #598556 ΔE 0.044
- Military Green #667C3E ΔE 0.048
- Muddy Green #657432 ΔE 0.053
- Tree Green #2A7E19 ΔE 0.055
- Viridian #1E9167 ΔE 0.057
- Fern Green #548D44 ΔE 0.058
Use #397E4B 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.