#31A73F
Closest named color: Medium Green (#39AD48). oklch(64.1% 0.177 144.9), rgb(49, 167, 63).
Aa
Black text reads best on this color (6.72:1).
About this color
#31A73F is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.177 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.019 away. Black text reads best on it, at 6.72:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 6.72:1 |
| White text | 3.12:1 |
Values
| HEX | #31A73F |
| RGB | rgb(49, 167, 63) |
| HSL | hsl(127, 55%, 42%) |
| OKLCH | oklch(64.1% 0.177 144.9) |
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 #31A73F | 3.12:1 | AA large text | Lc -63.2 | Content text, not long reading |
| Black text on #31A73F | 6.72:1 | AA | Lc 46.3 | Large or bold text, headings |
| #31A73F text on white | 3.12:1 | AA large text | Lc 57.8 | Large or bold text, headings |
| #31A73F text on black | 6.72:1 | AA | Lc -44.0 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E0EFE0
oklch(93.7% 0.026 145.4)
-
Step 200
200
#C6E2C6
oklch(88.5% 0.048 145.2)
-
Step 300
300
#9ED09E
oklch(80.9% 0.087 144.7)
-
Step 400
400
#64B768
oklch(70.7% 0.139 144.9)
-
Step 500
500 (this color)
#31A73F
oklch(64.1% 0.177 144.9)
-
Step 600
600
#008C23
oklch(55.6% 0.175 144.9)
-
Step 700
700
#00761C
oklch(49.2% 0.155 144.9)
-
Step 800
800
#006115
oklch(42.8% 0.135 144.8)
-
Step 900
900
#055013
oklch(37.6% 0.115 145)
-
Step 950
950
#092F0D
oklch(26.9% 0.072 144.9)
#31A73F 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) | #AA9833 | 0.132 |
| Deuteranopia (no green cones) | #9C8E48 | 0.132 |
| Tritanopia (no blue cones) | #00A391 | 0.109 |
| Achromatopsia (no color) | #929292 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31A73F
#31A73F
oklch(64.1% 0.177 144.9)
- #C060C7
#C060C7
oklch(64.1% 0.178 324.8)
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 #31A73F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.019
- Mid Green #50A747 ΔE 0.024
- Kelly Green #02AB2E ΔE 0.025
- Shamrock #01B44C ΔE 0.036
- Grass #5CAC2D ΔE 0.037
- Grassy Green #419C03 ΔE 0.038
- Grass Green #3F9B0B ΔE 0.039
- Leaf Green #5CA904 ΔE 0.040
Use #31A73F 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.