#13306B
Closest named color: Marine (#042E60). oklch(32.6% 0.109 262.4), rgb(19, 48, 107).
Aa
White text reads best on this color (12.62:1).
About this color
#13306B is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.109 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.024 away. White text reads best on it, at 12.62:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.66:1 |
| White text | 12.62:1 |
Values
| HEX | #13306B |
| RGB | rgb(19, 48, 107) |
| HSL | hsl(220, 70%, 25%) |
| OKLCH | oklch(32.6% 0.109 262.4) |
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 #13306B | 12.62:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #13306B | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #13306B text on white | 12.62:1 | AAA | Lc 98.2 | Preferred for body text |
| #13306B text on black | 1.66:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF8
oklch(88.5% 0.045 261.9)
-
Step 300
300
#A4C1F6
oklch(80.8% 0.082 262.3)
-
Step 400
400
#749FF2
oklch(70.7% 0.131 262.7)
-
Step 500
500
#5085ED
oklch(63.2% 0.166 262.3)
-
Step 600
600
#346CDC
oklch(55.7% 0.182 262.2)
-
Step 700
700
#2759BF
oklch(49.1% 0.169 262.4)
-
Step 800
800
#22499A
oklch(42.6% 0.14 262.7)
-
Step 900
900 (this color)
#13306B
oklch(32.6% 0.109 262.4)
-
Step 950
950
#132548
oklch(27% 0.069 262.3)
#13306B 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) | #07376D | 0.020 |
| Deuteranopia (no green cones) | #002F6A | 0.014 |
| Tritanopia (no blue cones) | #003E48 | 0.085 |
| Achromatopsia (no color) | #333333 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13306B
#13306B
oklch(32.6% 0.109 262.4)
- #453000
#453000
oklch(32.5% 0.067 82)
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 #13306B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.024
- Marine Blue #01386A ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.042
- Midnight Blue #191970 ΔE 0.056
- Twilight Blue #0A437A ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.070
- Midnight Green #073B4C ΔE 0.071
- Space Cadet #2B2D42 ΔE 0.077
Use #13306B 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.