#334B79
Closest named color: Light Navy (#155084). oklch(41.6% 0.083 262.5), rgb(51, 75, 121).
Aa
White text reads best on this color (8.66:1).
About this color
#334B79 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.083 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.031 away. White text reads best on it, at 8.66:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.42:1 |
| White text | 8.66:1 |
Values
| HEX | #334B79 |
| RGB | rgb(51, 75, 121) |
| HSL | hsl(219, 41%, 34%) |
| OKLCH | oklch(41.6% 0.083 262.5) |
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 #334B79 | 8.66:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #334B79 | 2.42:1 | Fails | Lc 14.4 | Not readable |
| #334B79 text on white | 8.66:1 | AAA | Lc 89.6 | Fine for body text |
| #334B79 text on black | 2.42:1 | Fails | Lc -12.6 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D0DAEB
oklch(88.6% 0.026 261.1)
-
Step 300
300
#B0C1E1
oklch(80.9% 0.049 263.1)
-
Step 400
400
#87A1D2
oklch(70.7% 0.078 262.8)
-
Step 500
500
#6989C6
oklch(63.1% 0.099 262.7)
-
Step 600
600
#5072B2
oklch(55.6% 0.108 262.2)
-
Step 700
700
#415F99
oklch(49% 0.1 262.5)
-
Step 800
800 (this color)
#334B79
oklch(41.6% 0.083 262.5)
-
Step 900
900
#2F4164
oklch(37.7% 0.065 262.9)
-
Step 950
950
#1C263B
oklch(27% 0.042 264.3)
#334B79 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) | #384F7B | 0.014 |
| Deuteranopia (no green cones) | #304878 | 0.010 |
| Tritanopia (no blue cones) | #07555C | 0.074 |
| Achromatopsia (no color) | #4B4B4B | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334B79
#334B79
oklch(41.6% 0.083 262.5)
- #624706
#624706
oklch(41.6% 0.083 82.6)
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 #334B79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.031
- Dusk Blue #26538D ΔE 0.037
- Deep Sea Blue #015482 ΔE 0.039
- Cobalt #1E488F ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.046
- Twilight Blue #0A437A ΔE 0.046
- Dusk #4E5481 ΔE 0.050
- Twilight #4E518B ΔE 0.052
Use #334B79 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.