#166289
Closest named color: Peacock Blue (#016795). oklch(47.1% 0.094 237), rgb(22, 98, 137).
Aa
White text reads best on this color (6.68:1).
About this color
#166289 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.094 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.021 away. White text reads best on it, at 6.68:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.14:1 |
| White text | 6.68:1 |
Values
| HEX | #166289 |
| RGB | rgb(22, 98, 137) |
| HSL | hsl(200, 72%, 31%) |
| OKLCH | oklch(47.1% 0.094 237) |
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 #166289 | 6.68:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #166289 | 3.14:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #166289 text on white | 6.68:1 | AA | Lc 82.6 | Fine for body text |
| #166289 text on black | 3.14:1 | AA large text | Lc -19.3 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300
#A6C6DB
oklch(81% 0.045 236.9)
-
Step 400
400
#74A8C9
oklch(70.7% 0.073 237)
-
Step 500
500
#4D92BB
oklch(63.2% 0.093 236.9)
-
Step 600
600
#2D7BA7
oklch(55.5% 0.101 237.5)
-
Step 700
700 (this color)
#166289
oklch(47.1% 0.094 237)
-
Step 800
800
#1C5574
oklch(42.8% 0.077 236.7)
-
Step 900
900
#1E465E
oklch(37.7% 0.061 237.7)
-
Step 950
950
#132937
oklch(27% 0.038 238.3)
#166289 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) | #4F628B | 0.053 |
| Deuteranopia (no green cones) | #405788 | 0.044 |
| Tritanopia (no blue cones) | #006C70 | 0.059 |
| Achromatopsia (no color) | #5C5C5C | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #166289
#166289
oklch(47.1% 0.094 237)
- #824C1F
#824C1F
oklch(47.1% 0.094 57.2)
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 #166289, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.021
- Light Navy Blue #2E5A88 ΔE 0.026
- Denim #3B638C ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.045
- Dusk Blue #26538D ΔE 0.047
- Ocean Blue #03719C ΔE 0.048
Use #166289 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.