#31783A
Closest named color: Jungle Green (#048243). oklch(51.2% 0.119 146), rgb(49, 120, 58).
Aa
White text reads best on this color (5.41:1).
About this color
#31783A is a medium-dark, moderately saturated green. In OKLCH its lightness is 51%, its chroma 0.119 and its hue 146°. 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 5.41:1.
| Hue family | Greens |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #31783A |
| RGB | rgb(49, 120, 58) |
| HSL | hsl(128, 42%, 33%) |
| OKLCH | oklch(51.2% 0.119 146) |
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 #31783A | 5.41:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #31783A | 3.87:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #31783A text on white | 5.41:1 | AA | Lc 76.7 | Fine for body text |
| #31783A text on black | 3.87:1 | AA large text | Lc -25.0 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE3
oklch(93.6% 0.017 145.4)
-
Step 200
200
#CCDFCD
oklch(88.4% 0.032 146.8)
-
Step 300
300
#AACBAB
oklch(80.9% 0.057 145.8)
-
Step 400
400
#7BB07E
oklch(70.7% 0.091 145.9)
-
Step 500
500
#579C5D
oklch(63.1% 0.117 145.9)
-
Step 600
600
#398642
oklch(55.5% 0.127 145.8)
-
Step 700
700 (this color)
#31783A
oklch(51.2% 0.119 146)
-
Step 800
800
#255D2C
oklch(42.8% 0.098 146)
-
Step 900
900
#234C28
oklch(37.6% 0.076 146.4)
-
Step 950
950
#162D18
oklch(27.1% 0.048 146)
#31783A 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) | #7A6E35 | 0.092 |
| Deuteranopia (no green cones) | #70673E | 0.091 |
| Tritanopia (no blue cones) | #23756A | 0.072 |
| Achromatopsia (no color) | #6A6A6A | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31783A
#31783A
oklch(51.2% 0.119 146)
- #894C8B
#894C8B
oklch(51.3% 0.119 326)
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 #31783A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.031
- Tree Green #2A7E19 ΔE 0.041
- Dark Olive Green #556B2F ΔE 0.049
- Dark Grass Green #388004 ΔE 0.051
- Muddy Green #657432 ΔE 0.057
- Green #008000 ΔE 0.060
- Sea Green #2E8B57 ΔE 0.060
- Camo Green #526525 ΔE 0.060
Use #31783A 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.