#345B80
Closest named color: Light Navy Blue (#2E5A88). oklch(45.9% 0.075 248.6), rgb(52, 91, 128).
Aa
White text reads best on this color (7.10:1).
About this color
#345B80 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.075 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.015 away. White text reads best on it, at 7.10:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.95:1 |
| White text | 7.10:1 |
Values
| HEX | #345B80 |
| RGB | rgb(52, 91, 128) |
| HSL | hsl(209, 42%, 35%) |
| OKLCH | oklch(45.9% 0.075 248.6) |
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 #345B80 | 7.10:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #345B80 | 2.95:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #345B80 text on white | 7.10:1 | AAA | Lc 84.5 | Fine for body text |
| #345B80 text on black | 2.95:1 | Fails | Lc -17.5 | 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 700.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EBF1
oklch(93.7% 0.01 247.9)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AFC3D8
oklch(80.9% 0.037 249.6)
-
Step 400
400
#85A4C4
oklch(70.7% 0.058 249.5)
-
Step 500
500
#658EB5
oklch(63.2% 0.074 247.8)
-
Step 600
600
#4C77A1
oklch(55.6% 0.081 248.9)
-
Step 700
700 (this color)
#345B80
oklch(45.9% 0.075 248.6)
-
Step 800
800
#335270
oklch(42.8% 0.062 248.7)
-
Step 900
900
#2D445A
oklch(37.8% 0.048 248.1)
-
Step 950
950
#1A2835
oklch(27% 0.031 247.2)
#345B80 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) | #4B5C82 | 0.029 |
| Deuteranopia (no green cones) | #41557F | 0.022 |
| Tritanopia (no blue cones) | #006468 | 0.064 |
| Achromatopsia (no color) | #585858 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345B80
#345B80
oklch(45.9% 0.075 248.6)
- #734F25
#734F25
oklch(45.8% 0.075 68.1)
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 #345B80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.015
- YInMn Blue #415A77 ΔE 0.019
- Denim #3B638C ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.032
- Dusk #4E5481 ΔE 0.037
- Dusk Blue #26538D ΔE 0.039
- Dusky Blue #475F94 ΔE 0.042
- Deep Sea Blue #015482 ΔE 0.042
Use #345B80 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.