#345579
Closest named color: YInMn Blue (#415A77). oklch(44.1% 0.071 251.7), rgb(52, 85, 121).
Aa
White text reads best on this color (7.71:1).
About this color
#345579 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.071 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.024 away. White text reads best on it, at 7.71:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.72:1 |
| White text | 7.71:1 |
Values
| HEX | #345579 |
| RGB | rgb(52, 85, 121) |
| HSL | hsl(211, 40%, 34%) |
| OKLCH | oklch(44.1% 0.071 251.7) |
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 #345579 | 7.71:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #345579 | 2.72:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #345579 text on white | 7.71:1 | AAA | Lc 86.7 | Fine for body text |
| #345579 text on black | 2.72:1 | Fails | Lc -15.4 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE8
oklch(88.6% 0.023 248.1)
-
Step 300
300
#AEC3DB
oklch(80.9% 0.041 251.8)
-
Step 400
400
#82A4C9
oklch(70.7% 0.066 250.9)
-
Step 500
500
#628DBC
oklch(63.1% 0.086 251.4)
-
Step 600
600
#4976A8
oklch(55.5% 0.093 252.1)
-
Step 700
700
#3A6390
oklch(49% 0.086 252)
-
Step 800
800 (this color)
#345579
oklch(44.1% 0.071 251.7)
-
Step 900
900
#2B435E
oklch(37.6% 0.055 252.2)
-
Step 950
950
#192837
oklch(27.1% 0.035 249.2)
#345579 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) | #46577B | 0.024 |
| Deuteranopia (no green cones) | #3D5078 | 0.017 |
| Tritanopia (no blue cones) | #065D62 | 0.061 |
| Achromatopsia (no color) | #535353 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #345579
#345579
oklch(44.1% 0.071 251.7)
- #6B4C22
#6B4C22
oklch(44.1% 0.071 72.3)
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 #345579, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.026
- Deep Sea Blue #015482 ΔE 0.036
- Dusk Blue #26538D ΔE 0.037
- Dusk #4E5481 ΔE 0.038
- Light Navy #155084 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.043
- Dusty Grape #545775 ΔE 0.044
Use #345579 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.