#18BC78
Closest named color: Dark Mint Green (#20C073). oklch(70.2% 0.159 158.1), rgb(24, 188, 120).
Aa
Black text reads best on this color (8.50:1).
About this color
#18BC78 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.159 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint Green (#20C073), ΔE 0.015 away. Black text reads best on it, at 8.50:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Dark Mint Green (#20C073) |
| Black text | 8.50:1 |
| White text | 2.46:1 |
Values
| HEX | #18BC78 |
| RGB | rgb(24, 188, 120) |
| HSL | hsl(155, 77%, 42%) |
| OKLCH | oklch(70.2% 0.159 158.1) |
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 #18BC78 | 2.46:1 | Fails | Lc -53.0 | Large or bold text, headings |
| Black text on #18BC78 | 8.50:1 | AAA | Lc 56.0 | Large or bold text, headings |
| #18BC78 text on white | 2.46:1 | Fails | Lc 48.0 | Large or bold text, headings |
| #18BC78 text on black | 8.50:1 | AAA | Lc -54.0 | 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
#EEF8F2
oklch(97% 0.013 159.9)
-
Step 100
100
#DBF0E3
oklch(93.6% 0.028 158.7)
-
Step 200
200
#BBE5CB
oklch(88.5% 0.056 157.9)
-
Step 300
300
#87D4A8
oklch(80.8% 0.099 158.2)
-
Step 400
400 (this color)
#18BC78
oklch(70.2% 0.159 158.1)
-
Step 500
500
#00A366
oklch(63% 0.147 158.1)
-
Step 600
600
#008955
oklch(55.5% 0.129 158.2)
-
Step 700
700
#007447
oklch(49.2% 0.115 158)
-
Step 800
800
#005F39
oklch(42.8% 0.1 157.9)
-
Step 900
900
#004F2F
oklch(37.7% 0.088 158.2)
-
Step 950
950
#002F1A
oklch(26.9% 0.063 158.2)
#18BC78 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) | #BAAC74 | 0.147 |
| Deuteranopia (no green cones) | #A8A07D | 0.143 |
| Tritanopia (no blue cones) | #00BBAB | 0.073 |
| Achromatopsia (no color) | #A5A5A5 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18BC78
#18BC78
oklch(70.2% 0.159 158.1)
- #DD74C1
#DD74C1
oklch(70.2% 0.16 338.2)
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 #18BC78, closest first.
No curated palette has a color within ΔE 0.04 of #18BC78.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint Green #20C073 ΔE 0.015
- Green Teal #0CB577 ΔE 0.021
- Dark Seafoam #1FB57A ΔE 0.022
- Cool Green #33B864 ΔE 0.023
- Medium Sea Green #3CB371 ΔE 0.025
- Dark Mint #48C072 ΔE 0.026
- Algae Green #21C36F ΔE 0.027
- Green Blue #01C08D ΔE 0.027
Use #18BC78 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.