#364686
Closest named color: Cobalt (#1E488F). oklch(41.5% 0.108 270.5), rgb(54, 70, 134).
Aa
White text reads best on this color (8.83:1).
About this color
#364686 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.108 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.028 away. White text reads best on it, at 8.83:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.37:1 |
| White text | 8.83:1 |
Values
| HEX | #364686 |
| RGB | rgb(54, 70, 134) |
| HSL | hsl(228, 43%, 37%) |
| OKLCH | oklch(41.5% 0.108 270.5) |
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 #364686 | 8.83:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #364686 | 2.37:1 | Fails | Lc 14.0 | Not readable |
| #364686 text on white | 8.83:1 | AAA | Lc 90.0 | Preferred for body text |
| #364686 text on black | 2.37:1 | Fails | Lc -12.3 | 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
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#D0D9F1
oklch(88.6% 0.034 269.3)
-
Step 300
300
#B1BFEA
oklch(80.8% 0.063 270.8)
-
Step 400
400
#899DE0
oklch(70.7% 0.101 270.9)
-
Step 500
500
#6C84D7
oklch(63.2% 0.128 270.2)
-
Step 600
600
#556CC5
oklch(55.7% 0.14 270.4)
-
Step 700
700
#4559AA
oklch(49% 0.131 270.5)
-
Step 800
800 (this color)
#364686
oklch(41.5% 0.108 270.5)
-
Step 900
900
#313E6E
oklch(37.7% 0.084 270.5)
-
Step 950
950
#1D2440
oklch(26.9% 0.053 271.8)
#364686 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) | #284E88 | 0.025 |
| Deuteranopia (no green cones) | #1C4785 | 0.028 |
| Tritanopia (no blue cones) | #00545F | 0.096 |
| Achromatopsia (no color) | #4A4A4A | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364686
#364686
oklch(41.5% 0.108 270.5)
- #5D4900
#5D4900
oklch(41.5% 0.085 90.7)
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 #364686, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.028
- Dark Slate Blue #483D8B ΔE 0.036
- Dusk Blue #26538D ΔE 0.038
- Blueberry #464196 ΔE 0.038
- Light Navy #155084 ΔE 0.039
- Twilight Blue #0A437A ΔE 0.048
- Twilight #4E518B ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.053
Use #364686 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.