#345783
Closest named color: Light Navy Blue (#2E5A88). oklch(45.1% 0.083 254.9), rgb(52, 87, 131).
Aa
White text reads best on this color (7.40:1).
About this color
#345783 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.083 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.011 away. White text reads best on it, at 7.40:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.83:1 |
| White text | 7.40:1 |
Values
| HEX | #345783 |
| RGB | rgb(52, 87, 131) |
| HSL | hsl(213, 43%, 36%) |
| OKLCH | oklch(45.1% 0.083 254.9) |
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 #345783 | 7.40:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #345783 | 2.83:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #345783 text on white | 7.40:1 | AAA | Lc 85.6 | Fine for body text |
| #345783 text on black | 2.83:1 | Fails | Lc -16.5 | Dividers and decoration only |
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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CDDAEB
oklch(88.4% 0.027 255.1)
-
Step 300
300
#ACC3E0
oklch(80.9% 0.048 254.3)
-
Step 400
400
#80A3D1
oklch(70.7% 0.078 255.5)
-
Step 500
500
#5F8CC5
oklch(63.2% 0.1 254.9)
-
Step 600
600
#4575B1
oklch(55.6% 0.108 254.8)
-
Step 700
700
#366298
oklch(49.1% 0.1 254.6)
-
Step 800
800 (this color)
#345783
oklch(45.1% 0.083 254.9)
-
Step 900
900
#294363
oklch(37.8% 0.064 254.3)
-
Step 950
950
#18273A
oklch(26.9% 0.041 254.8)
#345783 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) | #455A85 | 0.024 |
| Deuteranopia (no green cones) | #3A5282 | 0.015 |
| Tritanopia (no blue cones) | #006167 | 0.071 |
| Achromatopsia (no color) | #555555 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345783
#345783
oklch(45.1% 0.083 254.9)
- #704E17
#704E17
oklch(45.1% 0.083 75.2)
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 #345783, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.011
- Dusk Blue #26538D ΔE 0.027
- Denim Blue #3B5B92 ΔE 0.028
- YInMn Blue #415A77 ΔE 0.028
- Dusk #4E5481 ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.036
- Light Navy #155084 ΔE 0.037
- Denim #3B638C ΔE 0.038
Use #345783 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.