#16316C
Closest named color: Marine Blue (#01386A). oklch(33% 0.108 263.2), rgb(22, 49, 108).
Aa
White text reads best on this color (12.42:1).
About this color
#16316C is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.108 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.023 away. White text reads best on it, at 12.42:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.68:1 |
| White text | 12.42:1 |
Values
| HEX | #16316C |
| RGB | rgb(22, 49, 108) |
| HSL | hsl(221, 66%, 25%) |
| OKLCH | oklch(33% 0.108 263.2) |
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 #16316C | 12.42:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #16316C | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #16316C text on white | 12.42:1 | AAA | Lc 97.9 | Preferred for body text |
| #16316C text on black | 1.68:1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CADAF8
oklch(88.6% 0.045 263.1)
-
Step 300
300
#A5C1F6
oklch(80.9% 0.081 263)
-
Step 400
400
#759FF1
oklch(70.7% 0.129 262.9)
-
Step 500
500
#5284ED
oklch(63% 0.167 263.3)
-
Step 600
600
#386BDB
oklch(55.6% 0.18 263.3)
-
Step 700
700
#2B59BE
oklch(49.2% 0.167 263.2)
-
Step 800
800
#24499A
oklch(42.7% 0.139 263.3)
-
Step 900
900 (this color)
#16316C
oklch(33% 0.108 263.2)
-
Step 950
950
#142548
oklch(27.1% 0.069 263.1)
#16316C 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) | #09386E | 0.020 |
| Deuteranopia (no green cones) | #00306B | 0.017 |
| Tritanopia (no blue cones) | #003F49 | 0.085 |
| Achromatopsia (no color) | #343434 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #16316C
#16316C
oklch(33% 0.108 263.2)
- #463200
#463200
oklch(33.1% 0.068 84.1)
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 #16316C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.023
- Marine #042E60 ΔE 0.028
- Prussian Blue #1D3557 ΔE 0.041
- Twilight Blue #0A437A ΔE 0.055
- Midnight Blue #191970 ΔE 0.059
- Dark Blue Grey #1F3B4D ΔE 0.069
- Midnight Green #073B4C ΔE 0.071
- Space Cadet #2B2D42 ΔE 0.077
Use #16316C 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.