#1FA443
Closest named color: Medium Green (#39AD48). oklch(63% 0.175 147.2), rgb(31, 164, 67).
Aa
Black text reads best on this color (6.44:1).
About this color
#1FA443 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.175 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.031 away. Black text reads best on it, at 6.44:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.175) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 6.44:1 |
| White text | 3.25:1 |
Values
| HEX | #1FA443 |
| RGB | rgb(31, 164, 67) |
| HSL | hsl(136, 68%, 38%) |
| OKLCH | oklch(63% 0.175 147.2) |
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 #1FA443 | 3.25:1 | AA large text | Lc -64.7 | Content text, not long reading |
| Black text on #1FA443 | 6.44:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #1FA443 text on white | 3.25:1 | AA large text | Lc 59.3 | Large or bold text, headings |
| #1FA443 text on black | 6.44:1 | AA | Lc -42.4 | 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
#E0EFE1
oklch(93.7% 0.024 147.3)
-
Step 200
200
#C5E2C7
oklch(88.4% 0.048 147.1)
-
Step 300
300
#9CD0A1
oklch(80.9% 0.085 147.2)
-
Step 400
400
#60B76D
oklch(70.6% 0.136 147.3)
-
Step 500
500 (this color)
#1FA443
oklch(63% 0.175 147.2)
-
Step 600
600
#008B32
oklch(55.5% 0.164 147.3)
-
Step 700
700
#007529
oklch(49% 0.144 147.3)
-
Step 800
800
#006020
oklch(42.6% 0.126 147.3)
-
Step 900
900
#005019
oklch(37.6% 0.111 147.2)
-
Step 950
950
#062F0F
oklch(26.9% 0.072 147)
#1FA443 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) | #A69539 | 0.136 |
| Deuteranopia (no green cones) | #988A4B | 0.137 |
| Tritanopia (no blue cones) | #00A08F | 0.104 |
| Achromatopsia (no color) | #8E8E8E | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FA443
#1FA443
oklch(63% 0.175 147.2)
- #BF5CBF
#BF5CBF
oklch(63% 0.176 327.4)
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 #1FA443, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.031
- Kelly Green #02AB2E ΔE 0.031
- Mid Green #50A747 ΔE 0.033
- Grass Green #3F9B0B ΔE 0.036
- Grassy Green #419C03 ΔE 0.037
- Shamrock #01B44C ΔE 0.045
- Irish Green #019529 ΔE 0.048
- Jade Green #2BAF6A ΔE 0.050
Use #1FA443 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.