#18E48E
Closest named color: Aqua Green (#12E193). oklch(81% 0.189 157.1), rgb(24, 228, 142).
Aa
Black text reads best on this color (12.52:1).
About this color
#18E48E is a light, vivid green. In OKLCH its lightness is 81%, its chroma 0.189 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Green (#12E193), ΔE 0.012 away. Black text reads best on it, at 12.52:1.
| Hue family | Greens |
| Lightness | light (81%) |
| Chroma | vivid (0.189) |
| Temperature | in between |
| Nearest name | Aqua Green (#12E193) |
| Black text | 12.52:1 |
| White text | 1.67:1 |
Values
| HEX | #18E48E |
| RGB | rgb(24, 228, 142) |
| HSL | hsl(155, 81%, 49%) |
| OKLCH | oklch(81% 0.189 157.1) |
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 #18E48E | 1.67:1 | Fails | Lc -32.6 | Non-text elements, placeholder text |
| Black text on #18E48E | 12.52:1 | AAA | Lc 74.9 | Content text, not long reading |
| #18E48E text on white | 1.67:1 | Fails | Lc 29.0 | Dividers and decoration only |
| #18E48E text on black | 12.52:1 | AAA | Lc -73.9 | Content text, not long reading |
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 300.
-
Step 50
50
#E8FBEF
oklch(97.1% 0.025 158.2)
-
Step 100
100
#CDF6DC
oklch(93.7% 0.055 157.3)
-
Step 200
200
#9DEEBE
oklch(88.4% 0.104 157.4)
-
Step 300
300 (this color)
#18E48E
oklch(81% 0.189 157.1)
-
Step 400
400
#00BF75
oklch(70.8% 0.168 157.1)
-
Step 500
500
#00A363
oklch(63% 0.15 157)
-
Step 600
600
#008A53
oklch(55.7% 0.133 157)
-
Step 700
700
#007445
oklch(49.2% 0.117 157)
-
Step 800
800
#005F38
oklch(42.7% 0.101 157.3)
-
Step 900
900
#004F2E
oklch(37.6% 0.089 157.5)
-
Step 950
950
#002F19
oklch(26.9% 0.064 157.1)
#18E48E 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) | #E2D188 | 0.171 |
| Deuteranopia (no green cones) | #CDC294 | 0.168 |
| Tritanopia (no blue cones) | #00E2CE | 0.088 |
| Achromatopsia (no color) | #C8C8C8 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18E48E
#18E48E
oklch(81% 0.189 157.1)
- #FF98E5
#FF98E5
oklch(81% 0.154 336.9)
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 #18E48E, closest first.
No curated palette has a color within ΔE 0.04 of #18E48E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Green #12E193 ΔE 0.012
- Weird Green #3AE57F ΔE 0.019
- Turquoise Green #04F489 ΔE 0.047
- Emerald #06D6A0 ΔE 0.053
- Seaweed #18D17B ΔE 0.053
- Aqua Marine #2EE8BB ΔE 0.059
- Medium Spring Green #00FA9A ΔE 0.059
- Minty Green #0BF77D ΔE 0.062
Use #18E48E 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.