#13385C
Closest named color: Prussian Blue (#1D3557). oklch(33.4% 0.076 250.7), rgb(19, 56, 92).
Aa
White text reads best on this color (12.01:1).
About this color
#13385C is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.076 and its hue 251°. 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 12.01:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.74:1 |
| White text | 12.01:1 |
Values
| HEX | #13385C |
| RGB | rgb(19, 56, 92) |
| HSL | hsl(210, 66%, 22%) |
| OKLCH | oklch(33.4% 0.076 250.7) |
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 #13385C | 12.01:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #13385C | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #13385C text on white | 12.01:1 | AAA | Lc 97.2 | Preferred for body text |
| #13385C 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A6C4E5
oklch(80.9% 0.057 251)
-
Step 400
400
#75A5D8
oklch(70.8% 0.091 250.7)
-
Step 500
500
#4F8DCD
oklch(63% 0.117 250.8)
-
Step 600
600
#3076BA
oklch(55.5% 0.127 250.7)
-
Step 700
700
#2263A1
oklch(49.1% 0.119 250.8)
-
Step 800
800
#1F5182
oklch(42.7% 0.097 250.8)
-
Step 900
900 (this color)
#13385C
oklch(33.4% 0.076 250.7)
-
Step 950
950
#13283D
oklch(27.1% 0.048 250)
#13385C 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) | #273A5D | 0.023 |
| Deuteranopia (no green cones) | #1D335B | 0.017 |
| Tritanopia (no blue cones) | #004145 | 0.059 |
| Achromatopsia (no color) | #363636 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13385C
#13385C
oklch(33.4% 0.076 250.7)
- #4D2F00
#4D2F00
oklch(33.4% 0.072 71.4)
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 #13385C, 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 0.026
- Dark Blue Grey #1F3B4D ΔE 0.033
- Midnight Green #073B4C ΔE 0.034
- Marine #042E60 ΔE 0.037
- Gunmetal #293241 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.055
Use #13385C 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.