#397F37
Closest named color: Jungle Green (#048243). oklch(53.4% 0.128 143), rgb(57, 127, 55).
Aa
White text reads best on this color (4.92:1).
About this color
#397F37 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.128 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.024 away. White text reads best on it, at 4.92:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #397F37 |
| RGB | rgb(57, 127, 55) |
| HSL | hsl(118, 40%, 36%) |
| OKLCH | oklch(53.4% 0.128 143) |
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 #397F37 | 4.92:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #397F37 | 4.26:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #397F37 text on white | 4.92:1 | AA | Lc 73.8 | Content text, not long reading |
| #397F37 text on black | 4.26:1 | AA large text | Lc -27.9 | 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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E4EDE3
oklch(93.7% 0.016 142.6)
-
Step 200
200
#CDDFCC
oklch(88.5% 0.032 143.8)
-
Step 300
300
#ACCBA9
oklch(81% 0.058 142.7)
-
Step 400
400
#7EB07B
oklch(70.8% 0.093 143.2)
-
Step 500
500
#5C9B59
oklch(63% 0.116 143.1)
-
Step 600
600 (this color)
#397F37
oklch(53.4% 0.128 143)
-
Step 700
700
#31712F
oklch(49% 0.119 143)
-
Step 800
800
#2A5C28
oklch(42.6% 0.098 142.9)
-
Step 900
900
#274C25
oklch(37.8% 0.077 142.8)
-
Step 950
950
#172C16
oklch(26.8% 0.048 143.1)
#397F37 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) | #827430 | 0.094 |
| Deuteranopia (no green cones) | #786E3C | 0.092 |
| Tritanopia (no blue cones) | #2F7C6F | 0.081 |
| Achromatopsia (no color) | #707070 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397F37
#397F37
oklch(53.4% 0.128 143)
- #8F5097
#8F5097
oklch(53.2% 0.128 322.9)
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 #397F37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.024
- Tree Green #2A7E19 ΔE 0.031
- Dark Grass Green #388004 ΔE 0.035
- Sea Green #2E8B57 ΔE 0.044
- Forest Green #228B22 ΔE 0.048
- Green #008000 ΔE 0.051
- Olive Green #677A04 ΔE 0.052
- Military Green #667C3E ΔE 0.053
Use #397F37 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.