#185666
Closest named color: Deep Teal (#00555A). oklch(42.2% 0.066 218.8), rgb(24, 86, 102).
Aa
White text reads best on this color (8.19:1).
About this color
#185666 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.066 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.024 away. White text reads best on it, at 8.19:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.56:1 |
| White text | 8.19:1 |
Values
| HEX | #185666 |
| RGB | rgb(24, 86, 102) |
| HSL | hsl(192, 62%, 25%) |
| OKLCH | oklch(42.2% 0.066 218.8) |
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 #185666 | 8.19:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #185666 | 2.56:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #185666 text on white | 8.19:1 | AAA | Lc 88.1 | Fine for body text |
| #185666 text on black | 2.56:1 | Fails | Lc -14.1 | Not readable |
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 800.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE3
oklch(88.5% 0.022 218.6)
-
Step 300
300
#A6C7D2
oklch(80.9% 0.039 220)
-
Step 400
400
#74AABB
oklch(70.6% 0.062 219.6)
-
Step 500
500
#4C95AA
oklch(63.1% 0.079 219)
-
Step 600
600
#2A7F95
oklch(55.6% 0.086 218.6)
-
Step 700
700
#1B6B7F
oklch(49.1% 0.08 218.8)
-
Step 800
800 (this color)
#185666
oklch(42.2% 0.066 218.8)
-
Step 900
900
#1D4854
oklch(37.7% 0.051 218.9)
-
Step 950
950
#122A31
oklch(26.9% 0.033 219.1)
#185666 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) | #4C5367 | 0.056 |
| Deuteranopia (no green cones) | #414C66 | 0.049 |
| Tritanopia (no blue cones) | #005B5B | 0.030 |
| Achromatopsia (no color) | #4F4F4F | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #185666
#185666
oklch(42.2% 0.066 218.8)
- #6D4032
#6D4032
oklch(42.2% 0.067 38)
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 #185666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.024
- Petrol #005F6A ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.040
- Dark Teal #014D4E ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.050
- Dark Blue Green #005249 ΔE 0.051
- Charcoal #264653 ΔE 0.052
Use #185666 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.