#197B4E
Closest named color: Jungle Green (#048243). oklch(51.7% 0.113 157.7), rgb(25, 123, 78).
Aa
White text reads best on this color (5.27:1).
About this color
#197B4E is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.113 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.031 away. White text reads best on it, at 5.27:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 3.98:1 |
| White text | 5.27:1 |
Values
| HEX | #197B4E |
| RGB | rgb(25, 123, 78) |
| HSL | hsl(152, 66%, 29%) |
| OKLCH | oklch(51.7% 0.113 157.7) |
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 #197B4E | 5.27:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #197B4E | 3.98:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #197B4E text on white | 5.27:1 | AA | Lc 75.8 | Fine for body text |
| #197B4E text on black | 3.98:1 | AA large text | Lc -26.0 | 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 700.
-
Step 50
50
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CAE0D1
oklch(88.6% 0.031 155.9)
-
Step 300
300
#A4CCB3
oklch(80.9% 0.055 157.5)
-
Step 400
400
#70B18B
oklch(70.6% 0.087 157.6)
-
Step 500
500
#459E6F
oklch(63.2% 0.112 157.7)
-
Step 600
600
#1D8857
oklch(55.6% 0.121 157.8)
-
Step 700
700 (this color)
#197B4E
oklch(51.7% 0.113 157.7)
-
Step 800
800
#105E3A
oklch(42.7% 0.094 157.4)
-
Step 900
900
#184D32
oklch(37.7% 0.073 157.6)
-
Step 950
950
#102D1E
oklch(27% 0.045 158.6)
#197B4E 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) | #7A714B | 0.103 |
| Deuteranopia (no green cones) | #6E6851 | 0.101 |
| Tritanopia (no blue cones) | #007A6F | 0.051 |
| Achromatopsia (no color) | #6C6C6C | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #197B4E
#197B4E
oklch(51.7% 0.113 157.7)
- #904C7F
#904C7F
oklch(51.6% 0.113 337.3)
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 #197B4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.031
- Sea Green #2E8B57 ΔE 0.052
- Tree Green #2A7E19 ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.063
- Dark Sage #598556 ΔE 0.066
- Dark Aquamarine #017371 ΔE 0.067
- Bluegreen #017A79 ΔE 0.067
- Viridian #1E9167 ΔE 0.069
Use #197B4E 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.