#287B40
Closest named color: Jungle Green (#048243). oklch(51.8% 0.121 149.5), rgb(40, 123, 64).
Aa
White text reads best on this color (5.25:1).
About this color
#287B40 is a medium-dark, moderately saturated green. In OKLCH its lightness is 52%, its chroma 0.121 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.022 away. White text reads best on it, at 5.25:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #287B40 |
| RGB | rgb(40, 123, 64) |
| HSL | hsl(137, 51%, 32%) |
| OKLCH | oklch(51.8% 0.121 149.5) |
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 #287B40 | 5.25:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #287B40 | 3.99:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #287B40 text on white | 5.25:1 | AA | Lc 75.8 | Fine for body text |
| #287B40 text on black | 3.99:1 | 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
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CBE0CE
oklch(88.6% 0.033 149.5)
-
Step 300
300
#A7CCAD
oklch(81% 0.058 149.6)
-
Step 400
400
#76B181
oklch(70.7% 0.093 149.4)
-
Step 500
500
#4E9D61
oklch(63% 0.119 149.7)
-
Step 600
600
#2D8847
oklch(55.7% 0.131 149.4)
-
Step 700
700 (this color)
#287B40
oklch(51.8% 0.121 149.5)
-
Step 800
800
#1C5E2F
oklch(42.8% 0.101 149.4)
-
Step 900
900
#1E4D2A
oklch(37.7% 0.078 149.6)
-
Step 950
950
#132D19
oklch(27% 0.049 149.6)
#287B40 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) | #7C703B | 0.100 |
| Deuteranopia (no green cones) | #716944 | 0.098 |
| Tritanopia (no blue cones) | #07796D | 0.067 |
| Achromatopsia (no color) | #6C6C6C | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287B40
#287B40
oklch(51.8% 0.121 149.5)
- #8E4C8A
#8E4C8A
oklch(51.9% 0.121 329.4)
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 #287B40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.022
- Tree Green #2A7E19 ΔE 0.041
- Dark Grass Green #388004 ΔE 0.051
- Sea Green #2E8B57 ΔE 0.052
- Dark Olive Green #556B2F ΔE 0.057
- Green #008000 ΔE 0.059
- Muddy Green #657432 ΔE 0.062
- Military Green #667C3E ΔE 0.064
Use #287B40 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.