#1FAF41
Closest named color: Shamrock (#01B44C). oklch(66% 0.19 146.2), rgb(31, 175, 65).
Aa
Black text reads best on this color (7.26:1).
About this color
#1FAF41 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.190 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.015 away. Black text reads best on it, at 7.26:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.190) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.26:1 |
| White text | 2.88:1 |
Values
| HEX | #1FAF41 |
| RGB | rgb(31, 175, 65) |
| HSL | hsl(134, 70%, 40%) |
| OKLCH | oklch(66% 0.19 146.2) |
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 #1FAF41 | 2.88:1 | Fails | Lc -59.9 | Large or bold text, headings |
| Black text on #1FAF41 | 7.26:1 | AAA | Lc 49.5 | Large or bold text, headings |
| #1FAF41 text on white | 2.88:1 | Fails | Lc 54.6 | Large or bold text, headings |
| #1FAF41 text on black | 7.26:1 | AAA | Lc -47.2 | Large or bold text, headings |
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
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFDF
oklch(93.6% 0.027 145.4)
-
Step 200
200
#C4E3C5
oklch(88.5% 0.052 146)
-
Step 300
300
#99D19D
oklch(80.8% 0.093 146.5)
-
Step 400
400
#5AB966
oklch(70.8% 0.149 146.4)
-
Step 500
500 (this color)
#1FAF41
oklch(66% 0.19 146.2)
-
Step 600
600
#008C2C
oklch(55.7% 0.169 146.1)
-
Step 700
700
#007624
oklch(49.2% 0.15 146.2)
-
Step 800
800
#00601C
oklch(42.6% 0.129 146.3)
-
Step 900
900
#005116
oklch(37.9% 0.115 146.2)
-
Step 950
950
#03300B
oklch(27% 0.079 145.9)
#1FAF41 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) | #B29E34 | 0.146 |
| Deuteranopia (no green cones) | #A2944B | 0.144 |
| Tritanopia (no blue cones) | #00AB98 | 0.115 |
| Achromatopsia (no color) | #989898 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FAF41
#1FAF41
oklch(66% 0.19 146.2)
- #CB61CF
#CB61CF
oklch(66% 0.19 326.1)
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 #1FAF41, closest first.
No curated palette has a color within ΔE 0.04 of #1FAF41.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.015
- Medium Green #39AD48 ΔE 0.016
- Kelly Green #02AB2E ΔE 0.020
- Grass #5CAC2D ΔE 0.035
- Mid Green #50A747 ΔE 0.036
- Leafy Green #51B73B ΔE 0.039
- Leaf Green #5CA904 ΔE 0.040
- Cool Green #33B864 ΔE 0.043
Use #1FAF41 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.