#13335B
Closest named color: Prussian Blue (#1D3557). oklch(32% 0.081 255.5), rgb(19, 51, 91).
Aa
White text reads best on this color (12.70:1).
About this color
#13335B is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.081 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.015 away. White text reads best on it, at 12.70:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.65:1 |
| White text | 12.70:1 |
Values
| HEX | #13335B |
| RGB | rgb(19, 51, 91) |
| HSL | hsl(213, 65%, 22%) |
| OKLCH | oklch(32% 0.081 255.5) |
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 #13335B | 12.70:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #13335B | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #13335B text on white | 12.70:1 | AAA | Lc 98.5 | Preferred for body text |
| #13335B text on black | 1.65:1 | 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 950.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C2DBFD
oklch(88.4% 0.054 256.1)
-
Step 300
300
#97C4FE
oklch(81% 0.096 255)
-
Step 400
400
#5BA2FE
oklch(70.7% 0.153 255.7)
-
Step 500
500
#2087FC
oklch(63.1% 0.196 255.6)
-
Step 600
600
#0070DD
oklch(55.6% 0.187 255.6)
-
Step 700
700
#005EBB
oklch(49.1% 0.165 255.5)
-
Step 800
800
#004D9B
oklch(42.8% 0.143 255.4)
-
Step 900
900
#004082
oklch(37.8% 0.125 255.2)
-
Step 950
950 (this color)
#13335B
oklch(32% 0.081 255.5)
#13335B 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) | #20365D | 0.018 |
| Deuteranopia (no green cones) | #14305A | 0.009 |
| Tritanopia (no blue cones) | #003C42 | 0.062 |
| Achromatopsia (no color) | #333333 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13335B
#13335B
oklch(32% 0.081 255.5)
- #462D00
#462D00
oklch(31.9% 0.067 75.8)
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 #13335B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.015
- Marine #042E60 ΔE 0.023
- Marine Blue #01386A ΔE 0.029
- Midnight Green #073B4C ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.051
- Gunmetal #293241 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.064
Use #13335B 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.