#365CA0
Closest named color: Denim Blue (#3B5B92). oklch(48.2% 0.118 261.1), rgb(54, 92, 160).
Aa
White text reads best on this color (6.57:1).
About this color
#365CA0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.118 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.023 away. White text reads best on it, at 6.57:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #365CA0 |
| RGB | rgb(54, 92, 160) |
| HSL | hsl(218, 50%, 42%) |
| OKLCH | oklch(48.2% 0.118 261.1) |
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 #365CA0 | 6.57:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #365CA0 | 3.19:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #365CA0 text on white | 6.57:1 | AA | Lc 82.3 | Fine for body text |
| #365CA0 text on black | 3.19:1 | AA large text | Lc -19.6 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ACC2E6
oklch(81% 0.056 260.2)
-
Step 400
400
#80A1DA
oklch(70.6% 0.092 261.1)
-
Step 500
500
#6089D0
oklch(63.1% 0.117 260.8)
-
Step 600
600
#4771BD
oklch(55.5% 0.128 261.4)
-
Step 700
700 (this color)
#365CA0
oklch(48.2% 0.118 261.1)
-
Step 800
800
#2F4E84
oklch(42.8% 0.097 260.8)
-
Step 900
900
#2A416A
oklch(37.7% 0.076 261.3)
-
Step 950
950
#19263E
oklch(27% 0.049 262)
#365CA0 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) | #3D62A3 | 0.020 |
| Deuteranopia (no green cones) | #2C599F | 0.014 |
| Tritanopia (no blue cones) | #006C76 | 0.098 |
| Achromatopsia (no color) | #5D5D5D | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #365CA0
#365CA0
oklch(48.2% 0.118 261.1)
- #7A5700
#7A5700
oklch(48.1% 0.099 81.4)
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 #365CA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.023
- Dusky Blue #475F94 ΔE 0.030
- Light Navy Blue #2E5A88 ΔE 0.040
- Denim #3B638C ΔE 0.043
- Dusk Blue #26538D ΔE 0.043
- Mid Blue #276AB3 ΔE 0.045
- Peacock Blue #016795 ΔE 0.047
- Twilight #4E518B ΔE 0.047
Use #365CA0 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.