#197F40
Closest named color: Jungle Green (#048243). oklch(52.6% 0.132 150.8), rgb(25, 127, 64).
Aa
White text reads best on this color (5.05:1).
About this color
#197F40 is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.132 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 0.009 away. White text reads best on it, at 5.05:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.132) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #197F40 |
| RGB | rgb(25, 127, 64) |
| HSL | hsl(143, 67%, 30%) |
| OKLCH | oklch(52.6% 0.132 150.8) |
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 #197F40 | 5.05:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #197F40 | 4.15:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #197F40 text on white | 5.05:1 | AA | Lc 74.5 | Content text, not long reading |
| #197F40 text on black | 4.15:1 | AA large text | Lc -27.2 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CAE0CE
oklch(88.5% 0.034 150.8)
-
Step 300
300
#A6CCAD
oklch(80.9% 0.059 150.3)
-
Step 400
400
#73B282
oklch(70.8% 0.096 150.9)
-
Step 500
500
#4A9E62
oklch(63.1% 0.122 150.8)
-
Step 600
600 (this color)
#197F40
oklch(52.6% 0.132 150.8)
-
Step 700
700
#17733A
oklch(49% 0.122 150.9)
-
Step 800
800
#175E30
oklch(42.7% 0.102 150.8)
-
Step 900
900
#1C4D2B
oklch(37.7% 0.078 150.9)
-
Step 950
950
#122D19
oklch(26.9% 0.05 150.3)
#197F40 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) | #80743B | 0.110 |
| Deuteranopia (no green cones) | #746B45 | 0.109 |
| Tritanopia (no blue cones) | #007D70 | 0.071 |
| Achromatopsia (no color) | #6F6F6F | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #197F40
#197F40
oklch(52.6% 0.132 150.8)
- #944A8D
#944A8D
oklch(52.5% 0.132 330.9)
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 #197F40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.009
- Tree Green #2A7E19 ΔE 0.035
- Dark Grass Green #388004 ΔE 0.045
- Sea Green #2E8B57 ΔE 0.046
- Green #008000 ΔE 0.051
- Forest Green #228B22 ΔE 0.053
- Kelley Green #009337 ΔE 0.065
- Emerald Green #028F1E ΔE 0.065
Use #197F40 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.