#166169
Closest named color: Petrol (#005F6A). oklch(45.3% 0.07 205.7), rgb(22, 97, 105).
Aa
White text reads best on this color (7.12:1).
About this color
#166169 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 45%, its chroma 0.070 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.011 away. White text reads best on it, at 7.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.94:1 |
| White text | 7.12:1 |
Values
| HEX | #166169 |
| RGB | rgb(22, 97, 105) |
| HSL | hsl(186, 65%, 25%) |
| OKLCH | oklch(45.3% 0.07 205.7) |
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 #166169 | 7.12:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #166169 | 2.94:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #166169 text on white | 7.12:1 | AAA | Lc 84.4 | Fine for body text |
| #166169 text on black | 2.94:1 | Fails | Lc -17.6 | 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 800.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CD
oklch(81% 0.041 204.3)
-
Step 400
400
#6EADB5
oklch(70.8% 0.066 206)
-
Step 500
500
#4198A2
oklch(63.1% 0.084 205.6)
-
Step 600
600
#13828D
oklch(55.5% 0.091 205.7)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800 (this color)
#166169
oklch(45.3% 0.07 205.7)
-
Step 900
900
#154A50
oklch(37.8% 0.055 205.9)
-
Step 950
950
#0F2B2F
oklch(26.9% 0.034 207.9)
#166169 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) | #585D6A | 0.069 |
| Deuteranopia (no green cones) | #4D5469 | 0.064 |
| Tritanopia (no blue cones) | #006563 | 0.020 |
| Achromatopsia (no color) | #585858 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166169
#166169
oklch(45.3% 0.07 205.7)
- #784641
#784641
oklch(45.2% 0.07 26.3)
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 #166169, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.011
- Dark Aqua #05696B ΔE 0.025
- Dark Green Blue #1F6357 ΔE 0.032
- Deep Teal #00555A ΔE 0.044
- YInMn Blue #415A77 ΔE 0.053
- Deep Turquoise #017374 ΔE 0.055
- Dark Aquamarine #017371 ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.060
Use #166169 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.