#397F4B
Closest named color: Jungle Green (#048243). oklch(53.7% 0.108 149.8), rgb(57, 127, 75).
Aa
White text reads best on this color (4.87:1).
About this color
#397F4B is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.108 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 0.030 away. White text reads best on it, at 4.87:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.108) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.31:1 |
| White text | 4.87:1 |
Values
| HEX | #397F4B |
| RGB | rgb(57, 127, 75) |
| HSL | hsl(135, 38%, 36%) |
| OKLCH | oklch(53.7% 0.108 149.8) |
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 #397F4B | 4.87:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #397F4B | 4.31:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #397F4B text on white | 4.87:1 | AA | Lc 73.5 | Content text, not long reading |
| #397F4B 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
#CDDED0
oklch(88.4% 0.026 150.7)
-
Step 300
300
#ABCAB0
oklch(80.9% 0.049 149.8)
-
Step 400
400
#7EAF87
oklch(70.8% 0.078 149.7)
-
Step 500
500
#5B9A69
oklch(63% 0.098 150)
-
Step 600
600 (this color)
#397F4B
oklch(53.7% 0.108 149.8)
-
Step 700
700
#307041
oklch(49% 0.1 150)
-
Step 800
800
#295B36
oklch(42.6% 0.082 150.1)
-
Step 900
900
#264B2F
oklch(37.7% 0.064 150.2)
-
Step 950
950
#172C1C
oklch(27% 0.04 150.6)
#397F4B 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) | #807547 | 0.090 |
| Deuteranopia (no green cones) | #766F4E | 0.087 |
| Tritanopia (no blue cones) | #297D72 | 0.059 |
| Achromatopsia (no color) | #717171 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397F4B
#397F4B
oklch(53.7% 0.108 149.8)
- #90558C
#90558C
oklch(53.7% 0.108 329.4)
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 #397F4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.030
- Sea Green #2E8B57 ΔE 0.035
- Dark Sage #598556 ΔE 0.042
- Military Green #667C3E ΔE 0.048
- Muddy Green #657432 ΔE 0.053
- Tree Green #2A7E19 ΔE 0.054
- Viridian #1E9167 ΔE 0.055
- Fern Green #548D44 ΔE 0.055
Use #397F4B 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.