#1FA42D
Closest named color: Kelly Green (#02AB2E). oklch(62.8% 0.191 144), rgb(31, 164, 45).
Aa
Black text reads best on this color (6.40:1).
About this color
#1FA42D is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.191 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.020 away. Black text reads best on it, at 6.40:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.191) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.40:1 |
| White text | 3.27:1 |
Values
| HEX | #1FA42D |
| RGB | rgb(31, 164, 45) |
| HSL | hsl(126, 68%, 38%) |
| OKLCH | oklch(62.8% 0.191 144) |
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 #1FA42D | 3.27:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #1FA42D | 6.40:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #1FA42D text on white | 3.27:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #1FA42D text on black | 6.40:1 | AA | Lc -42.2 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E0EFDF
oklch(93.7% 0.027 143.6)
-
Step 200
200
#C5E3C4
oklch(88.6% 0.053 144.3)
-
Step 300
300
#9CD19A
oklch(80.9% 0.094 143.8)
-
Step 400
400
#60B861
oklch(70.7% 0.149 144)
-
Step 500
500 (this color)
#1FA42D
oklch(62.8% 0.191 144)
-
Step 600
600
#008C1B
oklch(55.6% 0.18 144)
-
Step 700
700
#007615
oklch(49.1% 0.159 144)
-
Step 800
800
#00610F
oklch(42.8% 0.139 144)
-
Step 900
900
#00510B
oklch(37.8% 0.122 144)
-
Step 950
950
#063009
oklch(27.1% 0.079 144.1)
#1FA42D 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) | #A79419 | 0.139 |
| Deuteranopia (no green cones) | #998A39 | 0.139 |
| Tritanopia (no blue cones) | #009F8D | 0.122 |
| Achromatopsia (no color) | #8E8E8E | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FA42D
#1FA42D
oklch(62.8% 0.191 144)
- #BE57C8
#BE57C8
oklch(62.7% 0.191 324)
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 #1FA42D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.020
- Grassy Green #419C03 ΔE 0.026
- Grass Green #3F9B0B ΔE 0.027
- Medium Green #39AD48 ΔE 0.037
- Mid Green #50A747 ΔE 0.042
- Leaf Green #5CA904 ΔE 0.045
- Irish Green #019529 ΔE 0.047
- Shamrock #01B44C ΔE 0.047
Use #1FA42D 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.