#13385B
Closest named color: Prussian Blue (#1D3557). oklch(33.3% 0.075 250.1), rgb(19, 56, 91).
Aa
White text reads best on this color (12.03:1).
About this color
#13385B is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.075 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.013 away. White text reads best on it, at 12.03:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.74:1 |
| White text | 12.03:1 |
Values
| HEX | #13385B |
| RGB | rgb(19, 56, 91) |
| HSL | hsl(209, 65%, 22%) |
| OKLCH | oklch(33.3% 0.075 250.1) |
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 #13385B | 12.03:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #13385B | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #13385B text on white | 12.03:1 | AAA | Lc 97.3 | Preferred for body text |
| #13385B text on black | 1.74:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBED
oklch(88.4% 0.031 249.7)
-
Step 300
300
#A6C4E4
oklch(80.9% 0.056 250.2)
-
Step 400
400
#75A5D7
oklch(70.7% 0.09 250.2)
-
Step 500
500
#4F8ECC
oklch(63.2% 0.114 249.7)
-
Step 600
600
#3177B9
oklch(55.7% 0.124 250)
-
Step 700
700
#23639F
oklch(49% 0.116 250.3)
-
Step 800
800
#1F5181
oklch(42.6% 0.096 250.4)
-
Step 900
900 (this color)
#13385B
oklch(33.3% 0.075 250.1)
-
Step 950
950
#13283D
oklch(27.1% 0.048 250)
#13385B 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) | #283A5C | 0.025 |
| Deuteranopia (no green cones) | #1D335A | 0.017 |
| Tritanopia (no blue cones) | #004045 | 0.055 |
| Achromatopsia (no color) | #363636 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13385B
#13385B
oklch(33.3% 0.075 250.1)
- #4D2E00
#4D2E00
oklch(33.2% 0.072 69.8)
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 #13385B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.013
- Marine Blue #01386A ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.031
- Midnight Green #073B4C ΔE 0.032
- Marine #042E60 ΔE 0.037
- Gunmetal #293241 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.054
Use #13385B 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.