#364788
Closest named color: Cobalt (#1E488F). oklch(41.9% 0.11 270.1), rgb(54, 71, 136).
Aa
White text reads best on this color (8.70:1).
About this color
#364788 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.110 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.027 away. White text reads best on it, at 8.70:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #364788 |
| RGB | rgb(54, 71, 136) |
| HSL | hsl(228, 43%, 37%) |
| OKLCH | oklch(41.9% 0.11 270.1) |
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 #364788 | 8.70:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #364788 | 2.41:1 | Fails | Lc 14.4 | Not readable |
| #364788 text on white | 8.70:1 | AAA | Lc 89.6 | Fine for body text |
| #364788 text on black | 2.41:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#D0D9F2
oklch(88.6% 0.036 269.9)
-
Step 300
300
#B0BFEB
oklch(80.8% 0.065 270.2)
-
Step 400
400
#889DE1
oklch(70.7% 0.103 270.5)
-
Step 500
500
#6B84D9
oklch(63.2% 0.131 270)
-
Step 600
600
#546CC6
oklch(55.7% 0.142 270.1)
-
Step 700
700
#4459AB
oklch(49% 0.133 270.1)
-
Step 800
800 (this color)
#364788
oklch(41.9% 0.11 270.1)
-
Step 900
900
#303E6F
oklch(37.7% 0.086 269.9)
-
Step 950
950
#1C2541
oklch(27.1% 0.054 269.1)
#364788 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) | #284F8A | 0.025 |
| Deuteranopia (no green cones) | #1C4887 | 0.027 |
| Tritanopia (no blue cones) | #005661 | 0.097 |
| Achromatopsia (no color) | #4B4B4B | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364788
#364788
oklch(41.9% 0.11 270.1)
- #5F4A00
#5F4A00
oklch(41.9% 0.086 90)
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 #364788, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.027
- Dusk Blue #26538D ΔE 0.035
- Dark Slate Blue #483D8B ΔE 0.036
- Blueberry #464196 ΔE 0.037
- Light Navy #155084 ΔE 0.038
- Twilight #4E518B ΔE 0.047
- Twilight Blue #0A437A ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.052
Use #364788 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.