#18AC37
Closest named color: Kelly Green (#02AB2E). oklch(65% 0.195 145.3), rgb(24, 172, 55).
Aa
Black text reads best on this color (6.99:1).
About this color
#18AC37 is a medium-light, vivid green. In OKLCH its lightness is 65%, its chroma 0.195 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.009 away. Black text reads best on it, at 6.99:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.195) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.99:1 |
| White text | 3.00:1 |
Values
| HEX | #18AC37 |
| RGB | rgb(24, 172, 55) |
| HSL | hsl(133, 76%, 38%) |
| OKLCH | oklch(65% 0.195 145.3) |
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 #18AC37 | 3.00:1 | AA large text | Lc -61.4 | Content text, not long reading |
| Black text on #18AC37 | 6.99:1 | AA | Lc 48.0 | Large or bold text, headings |
| #18AC37 text on white | 3.00:1 | AA large text | Lc 56.1 | Large or bold text, headings |
| #18AC37 text on black | 6.99:1 | AA | Lc -45.7 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DFEFDF
oklch(93.6% 0.027 145.4)
-
Step 200
200
#C4E3C4
oklch(88.5% 0.053 145.1)
-
Step 300
300
#99D19B
oklch(80.8% 0.095 145.5)
-
Step 400
400
#5AB962
oklch(70.7% 0.153 145.4)
-
Step 500
500 (this color)
#18AC37
oklch(65% 0.195 145.3)
-
Step 600
600
#008C26
oklch(55.6% 0.174 145.3)
-
Step 700
700
#00761F
oklch(49.2% 0.153 145.3)
-
Step 800
800
#006118
oklch(42.8% 0.133 145.4)
-
Step 900
900
#005112
oklch(37.8% 0.118 145.3)
-
Step 950
950
#033009
oklch(27% 0.081 145)
#18AC37 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) | #AF9B27 | 0.146 |
| Deuteranopia (no green cones) | #A09142 | 0.146 |
| Tritanopia (no blue cones) | #00A794 | 0.121 |
| Achromatopsia (no color) | #959595 | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18AC37
#18AC37
oklch(65% 0.195 145.3)
- #C85CCF
#C85CCF
oklch(65% 0.195 325.1)
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 #18AC37, closest first.
No curated palette has a color within ΔE 0.04 of #18AC37.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.009
- Medium Green #39AD48 ΔE 0.023
- Shamrock #01B44C ΔE 0.025
- Grass #5CAC2D ΔE 0.039
- Leaf Green #5CA904 ΔE 0.039
- Mid Green #50A747 ΔE 0.039
- Grassy Green #419C03 ΔE 0.045
- Leafy Green #51B73B ΔE 0.047
Use #18AC37 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.