#1FB34A
Closest named color: Shamrock (#01B44C). oklch(67.2% 0.188 147.5), rgb(31, 179, 74).
Aa
Black text reads best on this color (7.60:1).
About this color
#1FB34A is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.188 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock (#01B44C), ΔE 0.005 away. Black text reads best on it, at 7.60:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.188) |
| Temperature | in between |
| Nearest name | Shamrock (#01B44C) |
| Black text | 7.60:1 |
| White text | 2.76:1 |
Values
| HEX | #1FB34A |
| RGB | rgb(31, 179, 74) |
| HSL | hsl(137, 70%, 41%) |
| OKLCH | oklch(67.2% 0.188 147.5) |
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 #1FB34A | 2.76:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #1FB34A | 7.60:1 | AAA | Lc 51.3 | Large or bold text, headings |
| #1FB34A text on white | 2.76:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #1FB34A text on black | 7.60:1 | AAA | Lc -49.1 | 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 400.
-
Step 50
50
#EFF9F0
oklch(97.2% 0.016 148.4)
-
Step 100
100
#DCF1DD
oklch(93.7% 0.035 146.6)
-
Step 200
200
#BDE6C1
oklch(88.6% 0.066 147.7)
-
Step 300
300
#8BD595
oklch(80.8% 0.116 147.7)
-
Step 400
400 (this color)
#1FB34A
oklch(67.2% 0.188 147.5)
-
Step 500
500
#00A63E
oklch(63.2% 0.186 147.4)
-
Step 600
600
#008B33
oklch(55.5% 0.163 147.4)
-
Step 700
700
#00752A
oklch(49% 0.144 147.5)
-
Step 800
800
#006021
oklch(42.6% 0.125 147.5)
-
Step 900
900
#00501A
oklch(37.6% 0.11 147.5)
-
Step 950
950
#00300C
oklch(26.9% 0.079 147.3)
#1FB34A 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) | #B5A23F | 0.147 |
| Deuteranopia (no green cones) | #A59753 | 0.146 |
| Tritanopia (no blue cones) | #00AF9C | 0.110 |
| Achromatopsia (no color) | #9C9C9C | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FB34A
#1FB34A
oklch(67.2% 0.188 147.5)
- #D065D0
#D065D0
oklch(67.2% 0.187 327.4)
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 #1FB34A, closest first.
No curated palette has a color within ΔE 0.04 of #1FB34A.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock #01B44C ΔE 0.005
- Medium Green #39AD48 ΔE 0.018
- Leafy Green #51B73B ΔE 0.032
- Cool Green #33B864 ΔE 0.032
- Kelly Green #02AB2E ΔE 0.032
- Grass #5CAC2D ΔE 0.037
- Mid Green #50A747 ΔE 0.039
- Dark Pastel Green #56AE57 ΔE 0.040
Use #1FB34A 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.