#11427D
Closest named color: Twilight Blue (#0A437A). oklch(38.2% 0.112 255.8), rgb(17, 66, 125).
Aa
White text reads best on this color (10.00:1).
About this color
#11427D is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.112 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.007 away. White text reads best on it, at 10.00:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.09:1 |
| White text | 10.00:1 |
Values
| HEX | #11427D |
| RGB | rgb(17, 66, 125) |
| HSL | hsl(213, 76%, 28%) |
| OKLCH | oklch(38.2% 0.112 255.8) |
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 #11427D | 10.00:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #11427D | 2.09:1 | Fails | Lc 11.2 | Not readable |
| #11427D text on white | 10.00:1 | AAA | Lc 92.8 | Preferred for body text |
| #11427D text on black | 2.09:1 | Fails | Lc -9.7 | 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
#DFEBFA
oklch(93.6% 0.024 254)
-
Step 200
200
#C5DBF8
oklch(88.4% 0.047 255.4)
-
Step 300
300
#9DC3F7
oklch(80.8% 0.085 256.3)
-
Step 400
400
#65A2F3
oklch(70.6% 0.135 256)
-
Step 500
500
#3789EF
oklch(63.2% 0.172 255.8)
-
Step 600
600
#0270DD
oklch(55.7% 0.187 255.7)
-
Step 700
700
#005EBC
oklch(49.2% 0.166 255.7)
-
Step 800
800
#014C9B
oklch(42.6% 0.144 255.9)
-
Step 900
900 (this color)
#11427D
oklch(38.2% 0.112 255.8)
-
Step 950
950
#0B2648
oklch(26.9% 0.071 255.8)
#11427D 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) | #22477F | 0.022 |
| Deuteranopia (no green cones) | #073E7C | 0.014 |
| Tritanopia (no blue cones) | #005059 | 0.085 |
| Achromatopsia (no color) | #424242 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #11427D
#11427D
oklch(38.2% 0.112 255.8)
- #5B3C00
#5B3C00
oklch(38.2% 0.08 76.2)
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 #11427D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.007
- Cobalt #1E488F ΔE 0.036
- Light Navy #155084 ΔE 0.043
- Marine Blue #01386A ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.053
- Dusk Blue #26538D ΔE 0.059
- Dark Grey Blue #29465B ΔE 0.065
- Prussian Blue #1D3557 ΔE 0.071
Use #11427D 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.