#16334D
Closest named color: Prussian Blue (#1D3557). oklch(31.2% 0.059 247.9), rgb(22, 51, 77).
Aa
White text reads best on this color (13.00:1).
About this color
#16334D is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.059 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.021 away. White text reads best on it, at 13.00:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.61:1 |
| White text | 13.00:1 |
Values
| HEX | #16334D |
| RGB | rgb(22, 51, 77) |
| HSL | hsl(208, 56%, 19%) |
| OKLCH | oklch(31.2% 0.059 247.9) |
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 #16334D | 13.00:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #16334D | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #16334D text on white | 13.00:1 | AAA | Lc 99.1 | Preferred for body text |
| #16334D text on black | 1.61:1 | 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 950.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C6DCF2
oklch(88.5% 0.038 248.3)
-
Step 300
300
#9DC5EC
oklch(80.8% 0.07 248.1)
-
Step 400
400
#65A6E2
oklch(70.6% 0.111 247.8)
-
Step 500
500
#348FDA
oklch(63.2% 0.141 247.5)
-
Step 600
600
#0077C5
oklch(55.6% 0.149 247.9)
-
Step 700
700
#0064A7
oklch(49.1% 0.132 247.9)
-
Step 800
800
#00528A
oklch(42.8% 0.115 247.8)
-
Step 900
900
#0D4470
oklch(37.7% 0.093 248.2)
-
Step 950
950 (this color)
#16334D
oklch(31.2% 0.059 247.9)
#16334D 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) | #28344E | 0.023 |
| Deuteranopia (no green cones) | #202F4C | 0.016 |
| Tritanopia (no blue cones) | #00393C | 0.045 |
| Achromatopsia (no color) | #313131 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #16334D
#16334D
oklch(31.2% 0.059 247.9)
- #442B0B
#442B0B
oklch(31.3% 0.058 68.9)
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 #16334D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.021
- Midnight Green #073B4C ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.030
- Gunmetal #293241 ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.034
- Marine #042E60 ΔE 0.043
- Oxford Blue #1B263B ΔE 0.048
- Marine Blue #01386A ΔE 0.051
Use #16334D 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.