#364D81
Closest named color: Dusk Blue (#26538D). oklch(42.8% 0.091 264.8), rgb(54, 77, 129).
Aa
White text reads best on this color (8.28:1).
About this color
#364D81 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.091 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.026 away. White text reads best on it, at 8.28:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.53:1 |
| White text | 8.28:1 |
Values
| HEX | #364D81 |
| RGB | rgb(54, 77, 129) |
| HSL | hsl(222, 41%, 36%) |
| OKLCH | oklch(42.8% 0.091 264.8) |
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 #364D81 | 8.28:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #364D81 | 2.53:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #364D81 text on white | 8.28:1 | AAA | Lc 88.5 | Fine for body text |
| #364D81 text on black | 2.53:1 | Fails | Lc -13.7 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9ED
oklch(88.5% 0.029 266.4)
-
Step 300
300
#B0C1E4
oklch(81% 0.053 264.7)
-
Step 400
400
#86A0D6
oklch(70.6% 0.085 264.4)
-
Step 500
500
#6988CC
oklch(63.2% 0.109 264.8)
-
Step 600
600
#5070B8
oklch(55.5% 0.118 264.7)
-
Step 700
700
#415E9F
oklch(49.1% 0.11 264.6)
-
Step 800
800 (this color)
#364D81
oklch(42.8% 0.091 264.8)
-
Step 900
900
#2F4067
oklch(37.6% 0.071 265.3)
-
Step 950
950
#1B263D
oklch(27% 0.046 264.1)
#364D81 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) | #375283 | 0.015 |
| Deuteranopia (no green cones) | #2E4B80 | 0.012 |
| Tritanopia (no blue cones) | #055860 | 0.082 |
| Achromatopsia (no color) | #4E4E4E | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364D81
#364D81
oklch(42.8% 0.091 264.8)
- #654A00
#654A00
oklch(42.7% 0.087 84.5)
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 #364D81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.026
- Light Navy #155084 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.039
- Cobalt #1E488F ΔE 0.039
- Twilight #4E518B ΔE 0.040
- Dusk #4E5481 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.047
Use #364D81 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.