#346DA3
Closest named color: Muted Blue (#3B719F). oklch(52.2% 0.105 249.4), rgb(52, 109, 163).
Aa
White text reads best on this color (5.43:1).
About this color
#346DA3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.105 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.017 away. White text reads best on it, at 5.43:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #346DA3 |
| RGB | rgb(52, 109, 163) |
| HSL | hsl(209, 52%, 42%) |
| OKLCH | oklch(52.2% 0.105 249.4) |
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 #346DA3 | 5.43:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #346DA3 | 3.86:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #346DA3 text on white | 5.43:1 | AA | Lc 76.9 | Fine for body text |
| #346DA3 text on black | 3.86:1 | AA large text | Lc -24.9 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CCDBEB
oklch(88.5% 0.027 249.9)
-
Step 300
300
#A8C4E1
oklch(80.9% 0.051 249.4)
-
Step 400
400
#79A5D1
oklch(70.7% 0.08 249)
-
Step 500
500
#558EC5
oklch(63.1% 0.103 248.9)
-
Step 600
600
#3977B2
oklch(55.6% 0.112 249.5)
-
Step 700
700 (this color)
#346DA3
oklch(52.2% 0.105 249.4)
-
Step 800
800
#25527C
oklch(42.8% 0.086 249.1)
-
Step 900
900
#234464
oklch(37.7% 0.068 249.4)
-
Step 950
950
#15283A
oklch(27% 0.042 248.4)
#346DA3 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) | #5570A5 | 0.037 |
| Deuteranopia (no green cones) | #4665A2 | 0.026 |
| Tritanopia (no blue cones) | #007A80 | 0.081 |
| Achromatopsia (no color) | #6A6A6A | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #346DA3
#346DA3
oklch(52.2% 0.105 249.4)
- #905D16
#905D16
oklch(52.3% 0.105 69.2)
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 #346DA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.017
- Flat Blue #3C73A8 ΔE 0.020
- French Blue #436BAD ΔE 0.023
- Ocean Blue #03719C ΔE 0.029
- Mid Blue #276AB3 ΔE 0.030
- Dull Blue #49759C ΔE 0.037
- Nice Blue #107AB0 ΔE 0.039
- Peacock Blue #016795 ΔE 0.041
Use #346DA3 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.