#16347B
Closest named color: Marine Blue (#01386A). oklch(35% 0.126 263.8), rgb(22, 52, 123).
Aa
White text reads best on this color (11.59:1).
About this color
#16347B is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.126 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.035 away. White text reads best on it, at 11.59:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.81:1 |
| White text | 11.59:1 |
Values
| HEX | #16347B |
| RGB | rgb(22, 52, 123) |
| HSL | hsl(222, 70%, 28%) |
| OKLCH | oklch(35% 0.126 263.8) |
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 #16347B | 11.59:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #16347B | 1.81:1 | Fails | Lc 7.7 | Not readable |
| #16347B text on white | 11.59:1 | AAA | Lc 96.2 | Preferred for body text |
| #16347B text on black | 1.81:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFD
oklch(88.6% 0.052 263.7)
-
Step 300
300
#A1C0FF
oklch(80.8% 0.096 264.1)
-
Step 400
400
#6F9DFF
oklch(70.7% 0.152 263.9)
-
Step 500
500
#4A81FD
oklch(63.1% 0.194 263.8)
-
Step 600
600
#2F66EC
oklch(55.6% 0.211 263.9)
-
Step 700
700
#2254CD
oklch(49.1% 0.195 263.7)
-
Step 800
800
#1D45A6
oklch(42.6% 0.163 263.8)
-
Step 900
900 (this color)
#16347B
oklch(35% 0.126 263.8)
-
Step 950
950
#11244D
oklch(27.1% 0.08 263.3)
#16347B 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) | #003E7D | 0.028 |
| Deuteranopia (no green cones) | #00347A | 0.014 |
| Tritanopia (no blue cones) | #004652 | 0.099 |
| Achromatopsia (no color) | #393939 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #16347B
#16347B
oklch(35% 0.126 263.8)
- #4C3600
#4C3600
oklch(34.9% 0.072 83.2)
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 #16347B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.035
- Twilight Blue #0A437A ΔE 0.042
- Marine #042E60 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.063
- Cobalt #1E488F ΔE 0.065
- Midnight Blue #191970 ΔE 0.067
- Royal #0C1793 ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.081
Use #16347B 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.