#18A641
Closest named color: Kelly Green (#02AB2E). oklch(63.4% 0.181 147.1), rgb(24, 166, 65).
Aa
Black text reads best on this color (6.56:1).
About this color
#18A641 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.181 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.025 away. Black text reads best on it, at 6.56:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.56:1 |
| White text | 3.19:1 |
Values
| HEX | #18A641 |
| RGB | rgb(24, 166, 65) |
| HSL | hsl(137, 75%, 37%) |
| OKLCH | oklch(63.4% 0.181 147.1) |
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 #18A641 | 3.19:1 | AA large text | Lc -64.0 | Content text, not long reading |
| Black text on #18A641 | 6.56:1 | AA | Lc 45.5 | Large or bold text, headings |
| #18A641 text on white | 3.19:1 | AA large text | Lc 58.6 | Large or bold text, headings |
| #18A641 text on black | 6.56:1 | 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
#C5E3C7
oklch(88.6% 0.049 147)
-
Step 300
300
#9BD1A0
oklch(81% 0.088 147.1)
-
Step 400
400
#5DB86B
oklch(70.7% 0.141 147.2)
-
Step 500
500 (this color)
#18A641
oklch(63.4% 0.181 147.1)
-
Step 600
600
#008B31
oklch(55.5% 0.165 147.1)
-
Step 700
700
#007528
oklch(49% 0.145 147.1)
-
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
#04300E
oklch(27.1% 0.075 147)
#18A641 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) | #A89636 | 0.140 |
| Deuteranopia (no green cones) | #998C49 | 0.139 |
| Tritanopia (no blue cones) | #00A290 | 0.107 |
| Achromatopsia (no color) | #909090 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18A641
#18A641
oklch(63.4% 0.181 147.1)
- #C15CC2
#C15CC2
oklch(63.4% 0.18 327.1)
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 #18A641, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.025
- Medium Green #39AD48 ΔE 0.028
- Mid Green #50A747 ΔE 0.033
- Grassy Green #419C03 ΔE 0.038
- Grass Green #3F9B0B ΔE 0.038
- Shamrock #01B44C ΔE 0.039
- Grass #5CAC2D ΔE 0.048
- Leaf Green #5CA904 ΔE 0.049
Use #18A641 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.