#343F92
Closest named color: Blueberry (#464196). oklch(40.8% 0.136 273.1), rgb(52, 63, 146).
Aa
White text reads best on this color (9.24:1).
About this color
#343F92 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.136 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.029 away. White text reads best on it, at 9.24:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #343F92 |
| RGB | rgb(52, 63, 146) |
| HSL | hsl(233, 47%, 39%) |
| OKLCH | oklch(40.8% 0.136 273.1) |
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 #343F92 | 9.24:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #343F92 | 2.27:1 | Fails | Lc 13.0 | Not readable |
| #343F92 text on white | 9.24:1 | AAA | Lc 91.0 | Preferred for body text |
| #343F92 text on black | 2.27:1 | Fails | Lc -11.4 | 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 800.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F7
oklch(88.5% 0.044 272.7)
-
Step 300
300
#AFBEF5
oklch(80.9% 0.08 272.7)
-
Step 400
400
#879AF0
oklch(70.7% 0.128 273.3)
-
Step 500
500
#6B7EEA
oklch(63% 0.162 273.4)
-
Step 600
600
#5465D9
oklch(55.6% 0.177 273)
-
Step 700
700
#4553BC
oklch(49.1% 0.164 273)
-
Step 800
800 (this color)
#343F92
oklch(40.8% 0.136 273.1)
-
Step 900
900
#303B79
oklch(37.8% 0.106 272.8)
-
Step 950
950
#1C2347
oklch(27.1% 0.067 272.9)
#343F92 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) | #004C95 | 0.046 |
| Deuteranopia (no green cones) | #004390 | 0.041 |
| Tritanopia (no blue cones) | #005362 | 0.115 |
| Achromatopsia (no color) | #474747 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #343F92
#343F92
oklch(40.8% 0.136 273.1)
- #594800
#594800
oklch(40.7% 0.083 93.4)
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 #343F92, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.029
- Cobalt #1E488F ΔE 0.031
- Dark Slate Blue #483D8B ΔE 0.032
- Sapphire #2138AB ΔE 0.050
- Dusk Blue #26538D ΔE 0.057
- Twilight Blue #0A437A ΔE 0.058
- Light Navy #155084 ΔE 0.059
- Twilight #4E518B ΔE 0.068
Use #343F92 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.