#13306C
Closest named color: Marine Blue (#01386A). oklch(32.7% 0.111 262.6), rgb(19, 48, 108).
Aa
White text reads best on this color (12.59:1).
About this color
#13306C is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.111 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.025 away. White text reads best on it, at 12.59:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.66:1 |
| White text | 12.59:1 |
Values
| HEX | #13306C |
| RGB | rgb(19, 48, 108) |
| HSL | hsl(220, 70%, 25%) |
| OKLCH | oklch(32.7% 0.111 262.6) |
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 #13306C | 12.59:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #13306C | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #13306C text on white | 12.59:1 | AAA | Lc 98.2 | Preferred for body text |
| #13306C 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
#A4C1F7
oklch(80.9% 0.083 262.6)
-
Step 400
400
#739FF3
oklch(70.7% 0.133 262.5)
-
Step 500
500
#4F84EF
oklch(63% 0.171 262.7)
-
Step 600
600
#346BDD
oklch(55.6% 0.184 262.6)
-
Step 700
700
#2759C0
oklch(49.2% 0.171 262.5)
-
Step 800
800
#21499B
oklch(42.7% 0.142 262.5)
-
Step 900
900 (this color)
#13306C
oklch(32.7% 0.111 262.6)
-
Step 950
950
#132548
oklch(27% 0.069 262.3)
#13306C 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) | #05376E | 0.020 |
| Deuteranopia (no green cones) | #002F6B | 0.014 |
| Tritanopia (no blue cones) | #003F49 | 0.087 |
| Achromatopsia (no color) | #333333 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13306C
#13306C
oklch(32.7% 0.111 262.6)
- #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 #13306C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.025
- Marine #042E60 ΔE 0.025
- Prussian Blue #1D3557 ΔE 0.043
- Midnight Blue #191970 ΔE 0.055
- Twilight Blue #0A437A ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.072
- Midnight Green #073B4C ΔE 0.073
- Space Cadet #2B2D42 ΔE 0.078
Use #13306C 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.