#137B42
Closest named color: Jungle Green (#048243). oklch(51.4% 0.126 152.8), rgb(19, 123, 66).
Aa
White text reads best on this color (5.33:1).
About this color
#137B42 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.126 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.021 away. White text reads best on it, at 5.33:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 3.93:1 |
| White text | 5.33:1 |
Values
| HEX | #137B42 |
| RGB | rgb(19, 123, 66) |
| HSL | hsl(147, 73%, 28%) |
| OKLCH | oklch(51.4% 0.126 152.8) |
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 #137B42 | 5.33:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #137B42 | 3.93:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #137B42 text on white | 5.33:1 | AA | Lc 76.1 | Fine for body text |
| #137B42 text on black | 3.93:1 | AA large text | Lc -25.7 | 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
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#C9E0CF
oklch(88.5% 0.034 153.6)
-
Step 300
300
#A3CDAE
oklch(81% 0.062 152.9)
-
Step 400
400
#6FB283
oklch(70.6% 0.097 152.8)
-
Step 500
500
#439F64
oklch(63.1% 0.125 152.8)
-
Step 600
600
#18894B
oklch(55.6% 0.135 153)
-
Step 700
700 (this color)
#137B42
oklch(51.4% 0.126 152.8)
-
Step 800
800
#0D5F32
oklch(42.8% 0.104 152.9)
-
Step 900
900
#174E2C
oklch(37.8% 0.082 152.8)
-
Step 950
950
#0F2E1A
oklch(27.1% 0.052 152.9)
#137B42 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) | #7B703E | 0.108 |
| Deuteranopia (no green cones) | #6F6846 | 0.105 |
| Tritanopia (no blue cones) | #00796D | 0.066 |
| Achromatopsia (no color) | #6B6B6B | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #137B42
#137B42
oklch(51.4% 0.126 152.8)
- #904886
#904886
oklch(51.3% 0.126 332.7)
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 #137B42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.021
- Tree Green #2A7E19 ΔE 0.043
- Dark Grass Green #388004 ΔE 0.055
- Sea Green #2E8B57 ΔE 0.056
- Green #008000 ΔE 0.058
- Dark Olive Green #556B2F ΔE 0.064
- Forest Green #228B22 ΔE 0.066
- Muddy Green #657432 ΔE 0.071
Use #137B42 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.