#397F42
Closest named color: Jungle Green (#048243). oklch(53.6% 0.117 146.3), rgb(57, 127, 66).
Aa
White text reads best on this color (4.89:1).
About this color
#397F42 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.117 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.025 away. White text reads best on it, at 4.89:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.28:1 |
| White text | 4.89:1 |
Values
| HEX | #397F42 |
| RGB | rgb(57, 127, 66) |
| HSL | hsl(128, 38%, 36%) |
| OKLCH | oklch(53.6% 0.117 146.3) |
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 #397F42 | 4.89:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #397F42 | 4.28:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #397F42 text on white | 4.89:1 | AA | Lc 73.7 | Content text, not long reading |
| #397F42 text on black | 4.28:1 | AA large text | Lc -28.0 | 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
#E4EDE4
oklch(93.7% 0.015 145.5)
-
Step 200
200
#CDDFCE
oklch(88.5% 0.03 146.9)
-
Step 300
300
#ABCAAD
oklch(80.8% 0.052 146.8)
-
Step 400
400
#7EAF81
oklch(70.7% 0.084 146.1)
-
Step 500
500
#5B9B61
oklch(63.1% 0.108 146.3)
-
Step 600
600 (this color)
#397F42
oklch(53.6% 0.117 146.3)
-
Step 700
700
#317139
oklch(49.2% 0.109 146.2)
-
Step 800
800
#295C30
oklch(42.7% 0.09 146.6)
-
Step 900
900
#264B2A
oklch(37.5% 0.07 146.4)
-
Step 950
950
#172C19
oklch(26.9% 0.044 146.4)
#397F42 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) | #81753D | 0.091 |
| Deuteranopia (no green cones) | #776E46 | 0.090 |
| Tritanopia (no blue cones) | #2C7C70 | 0.069 |
| Achromatopsia (no color) | #717171 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397F42
#397F42
oklch(53.6% 0.117 146.3)
- #905391
#905391
oklch(53.6% 0.117 326.5)
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 #397F42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.025
- Sea Green #2E8B57 ΔE 0.037
- Tree Green #2A7E19 ΔE 0.043
- Dark Sage #598556 ΔE 0.048
- Dark Grass Green #388004 ΔE 0.048
- Military Green #667C3E ΔE 0.049
- Muddy Green #657432 ΔE 0.053
- Fern Green #548D44 ΔE 0.053
Use #397F42 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.