#037B40
Closest named color: Jungle Green (#048243). oklch(51.1% 0.131 153), rgb(3, 123, 64).
Aa
White text reads best on this color (5.36:1).
About this color
#037B40 is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.131 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 0.022 away. White text reads best on it, at 5.36:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 3.91:1 |
| White text | 5.36:1 |
Values
| HEX | #037B40 |
| RGB | rgb(3, 123, 64) |
| HSL | hsl(151, 95%, 25%) |
| OKLCH | oklch(51.1% 0.131 153) |
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 #037B40 | 5.36:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #037B40 | 3.91:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #037B40 text on white | 5.36:1 | AA | Lc 76.2 | Fine for body text |
| #037B40 text on black | 3.91:1 | AA large text | Lc -25.6 | 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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E1EEE4
oklch(93.7% 0.019 152.8)
-
Step 200
200
#C9E0CE
oklch(88.5% 0.035 152)
-
Step 300
300
#A2CDAD
oklch(80.9% 0.064 152.7)
-
Step 400
400
#6DB382
oklch(70.7% 0.101 152.7)
-
Step 500
500
#3EA063
oklch(63.2% 0.13 153.1)
-
Step 600
600
#0A8A49
oklch(55.6% 0.141 152.9)
-
Step 700
700 (this color)
#037B40
oklch(51.1% 0.131 153)
-
Step 800
800
#045F31
oklch(42.6% 0.107 153.2)
-
Step 900
900
#134E2B
oklch(37.7% 0.084 153)
-
Step 950
950
#0E2E19
oklch(27.1% 0.054 152.3)
#037B40 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) | #7B703B | 0.112 |
| Deuteranopia (no green cones) | #6F6744 | 0.111 |
| Tritanopia (no blue cones) | #00796D | 0.069 |
| Achromatopsia (no color) | #6A6A6A | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #037B40
#037B40
oklch(51.1% 0.131 153)
- #914686
#914686
oklch(51.2% 0.13 333.1)
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 #037B40, 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 0.054
- Green #008000 ΔE 0.054
- Sea Green #2E8B57 ΔE 0.059
- Forest Green #228B22 ΔE 0.065
- Dark Olive Green #556B2F ΔE 0.067
- Muddy Green #657432 ΔE 0.075
Use #037B40 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.