#11327B
Closest named color: Marine Blue (#01386A). oklch(34.4% 0.13 263), rgb(17, 50, 123).
Aa
White text reads best on this color (11.89:1).
About this color
#11327B is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.130 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.036 away. White text reads best on it, at 11.89:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.76:1 |
| White text | 11.89:1 |
Values
| HEX | #11327B |
| RGB | rgb(17, 50, 123) |
| HSL | hsl(221, 76%, 27%) |
| OKLCH | oklch(34.4% 0.13 263) |
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 #11327B | 11.89:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #11327B | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #11327B text on white | 11.89:1 | AAA | Lc 96.7 | Preferred for body text |
| #11327B text on black | 1.76:1 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C6DAFE
oklch(88.5% 0.054 262.2)
-
Step 300
300
#A0C1FF
oklch(80.9% 0.095 262.7)
-
Step 400
400
#6D9EFF
oklch(70.8% 0.152 262.8)
-
Step 500
500
#4681FF
oklch(63.1% 0.198 263.1)
-
Step 600
600
#2866F0
oklch(55.7% 0.217 263)
-
Step 700
700
#1C53D1
oklch(49.1% 0.203 263.2)
-
Step 800
800
#1945A9
oklch(42.7% 0.168 263.2)
-
Step 900
900 (this color)
#11327B
oklch(34.4% 0.13 263)
-
Step 950
950
#10244E
oklch(27.1% 0.082 263)
#11327B 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) | #003C7D | 0.027 |
| Deuteranopia (no green cones) | #00327A | 0.010 |
| Tritanopia (no blue cones) | #004451 | 0.100 |
| Achromatopsia (no color) | #373737 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11327B
#11327B
oklch(34.4% 0.13 263)
- #4A3500
#4A3500
oklch(34.4% 0.071 84)
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 #11327B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.036
- Twilight Blue #0A437A ΔE 0.048
- Marine #042E60 ΔE 0.050
- Midnight Blue #191970 ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.065
- Royal #0C1793 ΔE 0.066
- Cobalt #1E488F ΔE 0.071
- Sapphire #2138AB ΔE 0.084
Use #11327B 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.