#166685
Closest named color: Peacock Blue (#016795). oklch(47.9% 0.088 229.8), rgb(22, 102, 133).
Aa
White text reads best on this color (6.41:1).
About this color
#166685 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.088 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.026 away. White text reads best on it, at 6.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.27:1 |
| White text | 6.41:1 |
Values
| HEX | #166685 |
| RGB | rgb(22, 102, 133) |
| HSL | hsl(197, 72%, 30%) |
| OKLCH | oklch(47.9% 0.088 229.8) |
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 #166685 | 6.41:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #166685 | 3.27:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #166685 text on white | 6.41:1 | AA | Lc 81.5 | Fine for body text |
| #166685 text on black | 3.27:1 | AA large text | Lc -20.4 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADCE6
oklch(88.4% 0.024 231.9)
-
Step 300
300
#A5C6D7
oklch(80.8% 0.043 230.3)
-
Step 400
400
#74A9C3
oklch(70.7% 0.068 230.1)
-
Step 500
500
#4C93B4
oklch(63.1% 0.087 230.4)
-
Step 600
600
#2A7DA0
oklch(55.6% 0.095 230.2)
-
Step 700
700 (this color)
#166685
oklch(47.9% 0.088 229.8)
-
Step 800
800
#1A566F
oklch(42.7% 0.073 230)
-
Step 900
900
#1D475A
oklch(37.7% 0.057 230.4)
-
Step 950
950
#122A35
oklch(27.1% 0.036 229.8)
#166685 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) | #566486 | 0.060 |
| Deuteranopia (no green cones) | #475A85 | 0.052 |
| Tritanopia (no blue cones) | #006F70 | 0.051 |
| Achromatopsia (no color) | #5F5F5F | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166685
#166685
oklch(47.9% 0.088 229.8)
- #854D2D
#854D2D
oklch(47.9% 0.089 49.2)
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 #166685, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.026
- Denim #3B638C ΔE 0.032
- Light Navy Blue #2E5A88 ΔE 0.039
- Ocean Blue #03719C ΔE 0.043
- Sea Blue #047495 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.046
- Petrol #005F6A ΔE 0.048
- Dark Aqua #05696B ΔE 0.048
Use #166685 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.