#364B83
Closest named color: Dusk Blue (#26538D). oklch(42.4% 0.097 266.8), rgb(54, 75, 131).
Aa
White text reads best on this color (8.43:1).
About this color
#364B83 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.097 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.028 away. White text reads best on it, at 8.43:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.49:1 |
| White text | 8.43:1 |
Values
| HEX | #364B83 |
| RGB | rgb(54, 75, 131) |
| HSL | hsl(224, 42%, 36%) |
| OKLCH | oklch(42.4% 0.097 266.8) |
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 #364B83 | 8.43:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #364B83 | 2.49:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #364B83 text on white | 8.43:1 | AAA | Lc 88.9 | Fine for body text |
| #364B83 text on black | 2.49:1 | Fails | Lc -13.3 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EF
oklch(88.5% 0.032 268)
-
Step 300
300
#B0C0E6
oklch(80.8% 0.057 267.2)
-
Step 400
400
#879FDA
oklch(70.7% 0.091 267)
-
Step 500
500
#6A86D0
oklch(63.1% 0.116 267.3)
-
Step 600
600
#526FBD
oklch(55.7% 0.126 266.9)
-
Step 700
700
#425CA3
oklch(49% 0.118 266.9)
-
Step 800
800 (this color)
#364B83
oklch(42.4% 0.097 266.8)
-
Step 900
900
#2F406A
oklch(37.8% 0.075 266.2)
-
Step 950
950
#1C253E
oklch(26.9% 0.049 268)
#364B83 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) | #335185 | 0.017 |
| Deuteranopia (no green cones) | #294A82 | 0.016 |
| Tritanopia (no blue cones) | #015760 | 0.087 |
| Achromatopsia (no color) | #4D4D4D | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364B83
#364B83
oklch(42.4% 0.097 266.8)
- #634A00
#634A00
oklch(42.4% 0.087 86.3)
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 #364B83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.028
- Light Navy #155084 ΔE 0.031
- Cobalt #1E488F ΔE 0.034
- Twilight #4E518B ΔE 0.042
- Deep Sea Blue #015482 ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.043
- Dusk #4E5481 ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.047
Use #364B83 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.