#334D79
Closest named color: Light Navy (#155084). oklch(42.1% 0.08 260.4), rgb(51, 77, 121).
Aa
White text reads best on this color (8.47:1).
About this color
#334D79 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.080 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.030 away. White text reads best on it, at 8.47:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.47:1 |
| White text | 8.47:1 |
Values
| HEX | #334D79 |
| RGB | rgb(51, 77, 121) |
| HSL | hsl(218, 41%, 34%) |
| OKLCH | oklch(42.1% 0.08 260.4) |
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 #334D79 | 8.47:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #334D79 | 2.47:1 | Fails | Lc 14.9 | Not readable |
| #334D79 text on white | 8.47:1 | AAA | Lc 89.0 | Fine for body text |
| #334D79 text on black | 2.47:1 | Fails | Lc -13.2 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#AFC2E0
oklch(80.9% 0.047 259.5)
-
Step 400
400
#86A2D0
oklch(70.8% 0.075 260.2)
-
Step 500
500
#678AC4
oklch(63.1% 0.097 260.2)
-
Step 600
600
#4F73B0
oklch(55.6% 0.104 260.5)
-
Step 700
700
#406097
oklch(49.1% 0.096 260.7)
-
Step 800
800 (this color)
#334D79
oklch(42.1% 0.08 260.4)
-
Step 900
900
#2E4263
oklch(37.8% 0.062 260.1)
-
Step 950
950
#1B273A
oklch(27.1% 0.039 259.4)
#334D79 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) | #3B507B | 0.015 |
| Deuteranopia (no green cones) | #324A78 | 0.009 |
| Tritanopia (no blue cones) | #06575D | 0.072 |
| Achromatopsia (no color) | #4D4D4D | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334D79
#334D79
oklch(42.1% 0.08 260.4)
- #64480D
#64480D
oklch(42.2% 0.081 80.7)
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 #334D79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.030
- Dusk Blue #26538D ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.041
- Dusk #4E5481 ΔE 0.046
- YInMn Blue #415A77 ΔE 0.047
- Cobalt #1E488F ΔE 0.047
- Twilight #4E518B ΔE 0.050
Use #334D79 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.