#18A54E
Closest named color: Medium Green (#39AD48). oklch(63.3% 0.169 149.8), rgb(24, 165, 78).
Aa
Black text reads best on this color (6.53:1).
About this color
#18A54E is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.169 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Green (#39AD48), ΔE 0.031 away. Black text reads best on it, at 6.53:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Medium Green (#39AD48) |
| Black text | 6.53:1 |
| White text | 3.21:1 |
Values
| HEX | #18A54E |
| RGB | rgb(24, 165, 78) |
| HSL | hsl(143, 75%, 37%) |
| OKLCH | oklch(63.3% 0.169 149.8) |
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 #18A54E | 3.21:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #18A54E | 6.53:1 | AA | Lc 45.3 | Large or bold text, headings |
| #18A54E text on white | 3.21:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #18A54E text on black | 6.53:1 | AA | Lc -42.9 | 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
#F1F8F2
oklch(97.2% 0.011 149.9)
-
Step 100
100
#DFEFE2
oklch(93.7% 0.024 151.2)
-
Step 200
200
#C5E2C9
oklch(88.5% 0.046 149.2)
-
Step 300
300
#9BD0A5
oklch(80.9% 0.082 150)
-
Step 400
400
#5DB773
oklch(70.6% 0.132 149.9)
-
Step 500
500 (this color)
#18A54E
oklch(63.3% 0.169 149.8)
-
Step 600
600
#008B3E
oklch(55.6% 0.154 149.9)
-
Step 700
700
#007533
oklch(49.1% 0.136 149.9)
-
Step 800
800
#006028
oklch(42.7% 0.119 149.7)
-
Step 900
900
#005020
oklch(37.7% 0.105 149.6)
-
Step 950
950
#042F12
oklch(26.9% 0.07 149.7)
#18A54E 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) | #A69646 | 0.137 |
| Deuteranopia (no green cones) | #978B55 | 0.137 |
| Tritanopia (no blue cones) | #00A291 | 0.094 |
| Achromatopsia (no color) | #8F8F8F | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18A54E
#18A54E
oklch(63.3% 0.169 149.8)
- #C05FBA
#C05FBA
oklch(63.3% 0.167 329.7)
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 #18A54E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Green #39AD48 ΔE 0.031
- Mid Green #50A747 ΔE 0.032
- Kelly Green #02AB2E ΔE 0.039
- Jade Green #2BAF6A ΔE 0.041
- Seaweed Green #35AD6B ΔE 0.042
- Shamrock #01B44C ΔE 0.045
- Grass Green #3F9B0B ΔE 0.046
- Grassy Green #419C03 ΔE 0.047
Use #18A54E 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.