#166680
Closest named color: Peacock Blue (#016795). oklch(47.7% 0.083 225.3), rgb(22, 102, 128).
Aa
White text reads best on this color (6.46:1).
About this color
#166680 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.083 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.034 away. White text reads best on it, at 6.46:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.24:1 |
| White text | 6.46:1 |
Values
| HEX | #166680 |
| RGB | rgb(22, 102, 128) |
| HSL | hsl(195, 71%, 29%) |
| OKLCH | oklch(47.7% 0.083 225.3) |
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 #166680 | 6.46:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #166680 | 3.24:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #166680 text on white | 6.46:1 | AA | Lc 81.7 | Fine for body text |
| #166680 text on black | 3.24:1 | AA large text | Lc -20.2 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE4
oklch(88.5% 0.023 221.8)
-
Step 300
300
#A6C7D5
oklch(81% 0.041 225.4)
-
Step 400
400
#74AABF
oklch(70.8% 0.064 224.3)
-
Step 500
500
#4D94AF
oklch(63.1% 0.082 225.2)
-
Step 600
600
#2B7E9B
oklch(55.6% 0.09 225.4)
-
Step 700
700 (this color)
#166680
oklch(47.7% 0.083 225.3)
-
Step 800
800
#1B576B
oklch(42.8% 0.068 224.2)
-
Step 900
900
#1D4757
oklch(37.6% 0.054 226)
-
Step 950
950
#122A33
oklch(27% 0.034 224.8)
#166680 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) | #586481 | 0.063 |
| Deuteranopia (no green cones) | #4A5A80 | 0.055 |
| Tritanopia (no blue cones) | #006E6F | 0.044 |
| Achromatopsia (no color) | #5E5E5E | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166680
#166680
oklch(47.7% 0.083 225.3)
- #834D33
#834D33
oklch(47.7% 0.083 45.9)
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 #166680, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.034
- Denim #3B638C ΔE 0.038
- Dark Aqua #05696B ΔE 0.040
- Petrol #005F6A ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.045
- Sea Blue #047495 ΔE 0.047
- Ocean Blue #03719C ΔE 0.049
Use #166680 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.