#18BB5E
Closest named color: Cool Green (#33B864). oklch(69.5% 0.182 151), rgb(24, 187, 94).
Aa
Black text reads best on this color (8.30:1).
About this color
#18BB5E is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.182 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.016 away. Black text reads best on it, at 8.30:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.182) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 8.30:1 |
| White text | 2.52:1 |
Values
| HEX | #18BB5E |
| RGB | rgb(24, 187, 94) |
| HSL | hsl(146, 77%, 41%) |
| OKLCH | oklch(69.5% 0.182 151) |
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 #18BB5E | 2.52:1 | Fails | Lc -54.0 | Large or bold text, headings |
| Black text on #18BB5E | 8.30:1 | AAA | Lc 55.1 | Large or bold text, headings |
| #18BB5E text on white | 2.52:1 | Fails | Lc 48.9 | Large or bold text, headings |
| #18BB5E text on black | 8.30:1 | AAA | Lc -53.0 | 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 400.
-
Step 50
50
#EFF9F0
oklch(97.2% 0.016 148.4)
-
Step 100
100
#DBF1DF
oklch(93.7% 0.033 150.8)
-
Step 200
200
#BCE6C4
oklch(88.6% 0.064 150.6)
-
Step 300
300
#88D69B
oklch(81% 0.114 151)
-
Step 400
400 (this color)
#18BB5E
oklch(69.5% 0.182 151)
-
Step 500
500
#00A550
oklch(63.2% 0.17 151.1)
-
Step 600
600
#008B42
oklch(55.7% 0.15 151)
-
Step 700
700
#007536
oklch(49.2% 0.133 150.8)
-
Step 800
800
#00602B
oklch(42.8% 0.116 150.8)
-
Step 900
900
#005023
oklch(37.7% 0.102 150.9)
-
Step 950
950
#003012
oklch(27% 0.073 150.7)
#18BB5E 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) | #BCAA56 | 0.152 |
| Deuteranopia (no green cones) | #AB9E65 | 0.150 |
| Tritanopia (no blue cones) | #00B8A5 | 0.099 |
| Achromatopsia (no color) | #A3A3A3 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18BB5E
#18BB5E
oklch(69.5% 0.182 151)
- #DA6DD0
#DA6DD0
oklch(69.5% 0.181 330.9)
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 #18BB5E, closest first.
No curated palette has a color within ΔE 0.04 of #18BB5E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.016
- Shamrock #01B44C ΔE 0.026
- Dark Mint Green #20C073 ΔE 0.026
- Algae Green #21C36F ΔE 0.027
- Shamrock Green #02C14D ΔE 0.029
- Leafy Green #51B73B ΔE 0.035
- Dark Mint #48C072 ΔE 0.037
- Medium Green #39AD48 ΔE 0.039
Use #18BB5E 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.