#1FA63F
Closest named color: Kelly Green (#02AB2E). oklch(63.5% 0.181 146.4), rgb(31, 166, 63).
Aa
Black text reads best on this color (6.58:1).
About this color
#1FA63F is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.181 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.024 away. Black text reads best on it, at 6.58:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.58:1 |
| White text | 3.18:1 |
Values
| HEX | #1FA63F |
| RGB | rgb(31, 166, 63) |
| HSL | hsl(134, 69%, 39%) |
| OKLCH | oklch(63.5% 0.181 146.4) |
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 #1FA63F | 3.18:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #1FA63F | 6.58:1 | AA | Lc 45.6 | Large or bold text, headings |
| #1FA63F text on white | 3.18:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #1FA63F text on black | 6.58:1 | AA | Lc -43.2 | 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
#DFEFE0
oklch(93.6% 0.026 147.1)
-
Step 200
200
#C5E2C6
oklch(88.4% 0.049 146.1)
-
Step 300
300
#9BD19F
oklch(81% 0.089 146.6)
-
Step 400
400
#5FB869
oklch(70.8% 0.142 146.3)
-
Step 500
500 (this color)
#1FA63F
oklch(63.5% 0.181 146.4)
-
Step 600
600
#008C2D
oklch(55.7% 0.169 146.3)
-
Step 700
700
#007525
oklch(49% 0.148 146.5)
-
Step 800
800
#00601D
oklch(42.6% 0.128 146.5)
-
Step 900
900
#005016
oklch(37.5% 0.114 146.3)
-
Step 950
950
#05300D
oklch(27.1% 0.076 146.1)
#1FA63F 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) | #A89634 | 0.139 |
| Deuteranopia (no green cones) | #9A8C48 | 0.139 |
| Tritanopia (no blue cones) | #00A290 | 0.109 |
| Achromatopsia (no color) | #909090 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FA63F
#1FA63F
oklch(63.5% 0.181 146.4)
- #C15CC4
#C15CC4
oklch(63.5% 0.182 326.3)
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 #1FA63F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.024
- Medium Green #39AD48 ΔE 0.027
- Mid Green #50A747 ΔE 0.032
- Grassy Green #419C03 ΔE 0.036
- Grass Green #3F9B0B ΔE 0.037
- Shamrock #01B44C ΔE 0.039
- Grass #5CAC2D ΔE 0.046
- Leaf Green #5CA904 ΔE 0.046
Use #1FA63F 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.