#18745E
Closest named color: Dark Aquamarine (#017371). oklch(50.2% 0.09 172.2), rgb(24, 116, 94).
Aa
White text reads best on this color (5.67:1).
About this color
#18745E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 50%, its chroma 0.090 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.031 away. White text reads best on it, at 5.67:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.69:1 |
| White text | 5.67:1 |
Values
| HEX | #18745E |
| RGB | rgb(24, 116, 94) |
| HSL | hsl(166, 66%, 27%) |
| OKLCH | oklch(50.2% 0.09 172.2) |
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 #18745E | 5.67:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #18745E | 3.69:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #18745E text on white | 5.67:1 | AA | Lc 78.0 | Fine for body text |
| #18745E text on black | 3.69:1 | AA large text | Lc -23.8 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE9
oklch(93.7% 0.013 172.4)
-
Step 200
200
#CADFD7
oklch(88.6% 0.025 170.9)
-
Step 300
300
#A5CABD
oklch(80.8% 0.043 171.8)
-
Step 400
400
#72AF9C
oklch(70.7% 0.069 172.6)
-
Step 500
500
#499B83
oklch(63.1% 0.089 171.7)
-
Step 600
600
#23856D
oklch(55.5% 0.096 172.5)
-
Step 700
700 (this color)
#18745E
oklch(50.2% 0.09 172.2)
-
Step 800
800
#155C4A
oklch(42.7% 0.075 171.7)
-
Step 900
900
#1A4B3E
oklch(37.5% 0.057 172.7)
-
Step 950
950
#112C24
oklch(26.9% 0.037 171.8)
#18745E 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) | #706C5D | 0.092 |
| Deuteranopia (no green cones) | #646360 | 0.089 |
| Tritanopia (no blue cones) | #00756E | 0.024 |
| Achromatopsia (no color) | #676767 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18745E
#18745E
oklch(50.2% 0.09 172.2)
- #8A4D69
#8A4D69
oklch(50.1% 0.089 351.8)
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 #18745E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.031
- Deep Turquoise #017374 ΔE 0.036
- Bluegreen #017A79 ΔE 0.040
- Dark Aqua #05696B ΔE 0.047
- Deep Aqua #08787F ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.052
- Teal #008080 ΔE 0.055
- Jungle Green #048243 ΔE 0.068
Use #18745E 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.