#186F6D
Closest named color: Dark Aquamarine (#017371). oklch(49.3% 0.078 192.6), rgb(24, 111, 109).
Aa
White text reads best on this color (5.94:1).
About this color
#186F6D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.078 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.012 away. White text reads best on it, at 5.94:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.53:1 |
| White text | 5.94:1 |
Values
| HEX | #186F6D |
| RGB | rgb(24, 111, 109) |
| HSL | hsl(179, 64%, 26%) |
| OKLCH | oklch(49.3% 0.078 192.6) |
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 #186F6D | 5.94:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #186F6D | 3.53:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #186F6D text on white | 5.94:1 | AA | Lc 79.4 | Fine for body text |
| #186F6D text on black | 3.53:1 | AA large text | Lc -22.4 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADEDD
oklch(88.5% 0.021 193.1)
-
Step 300
300
#A6C9C7
oklch(81% 0.037 192.2)
-
Step 400
400
#73ADAB
oklch(70.7% 0.06 193.1)
-
Step 500
500
#4B9896
oklch(63% 0.076 193.1)
-
Step 600
600
#278380
oklch(55.7% 0.084 191.8)
-
Step 700
700 (this color)
#186F6D
oklch(49.3% 0.078 192.6)
-
Step 800
800
#185A58
oklch(42.7% 0.064 192.1)
-
Step 900
900
#1C4A49
oklch(37.7% 0.05 193.3)
-
Step 950
950
#122B2B
oklch(26.9% 0.031 195.5)
#186F6D 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) | #68696D | 0.082 |
| Deuteranopia (no green cones) | #5B606E | 0.076 |
| Tritanopia (no blue cones) | #00726E | 0.010 |
| Achromatopsia (no color) | #646464 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #186F6D
#186F6D
oklch(49.3% 0.078 192.6)
- #874E55
#874E55
oklch(49.2% 0.077 12.4)
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 #186F6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.012
- Deep Turquoise #017374 ΔE 0.014
- Dark Aqua #05696B ΔE 0.021
- Deep Aqua #08787F ΔE 0.034
- Bluegreen #017A79 ΔE 0.034
- Dark Green Blue #1F6357 ΔE 0.044
- Teal #008080 ΔE 0.052
- Petrol #005F6A ΔE 0.053
Use #186F6D 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.