#364C73
Closest named color: Light Navy (#155084). oklch(41.7% 0.071 261.3), rgb(54, 76, 115).
Aa
White text reads best on this color (8.61:1).
About this color
#364C73 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.071 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.038 away. White text reads best on it, at 8.61:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #364C73 |
| RGB | rgb(54, 76, 115) |
| HSL | hsl(218, 36%, 33%) |
| OKLCH | oklch(41.7% 0.071 261.3) |
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 #364C73 | 8.61:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #364C73 | 2.43:1 | Fails | Lc 14.5 | Not readable |
| #364C73 text on white | 8.61:1 | AAA | Lc 89.5 | Fine for body text |
| #364C73 text on black | 2.43:1 | Fails | Lc -12.7 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D1DAE9
oklch(88.6% 0.023 260.7)
-
Step 300
300
#B2C1DC
oklch(80.8% 0.042 262.3)
-
Step 400
400
#8AA1CB
oklch(70.7% 0.067 262.3)
-
Step 500
500
#6C8ABD
oklch(63.1% 0.085 260.8)
-
Step 600
600
#5473A9
oklch(55.5% 0.092 261)
-
Step 700
700
#456091
oklch(49% 0.086 261.7)
-
Step 800
800 (this color)
#364C73
oklch(41.7% 0.071 261.3)
-
Step 900
900
#31425F
oklch(37.8% 0.055 260.8)
-
Step 950
950
#1D2738
oklch(27.2% 0.035 260.8)
#364C73 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) | #3D4F75 | 0.014 |
| Deuteranopia (no green cones) | #364972 | 0.009 |
| Tritanopia (no blue cones) | #1A545A | 0.063 |
| Achromatopsia (no color) | #4C4C4C | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364C73
#364C73
oklch(41.7% 0.071 261.3)
- #604818
#604818
oklch(41.8% 0.072 81.6)
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 #364C73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.043
- Dusk Blue #26538D ΔE 0.045
- YInMn Blue #415A77 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.048
- Dusk #4E5481 ΔE 0.048
- Twilight Blue #0A437A ΔE 0.053
Use #364C73 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.