#365DBD
Closest named color: Mid Blue (#276AB3). oklch(50.4% 0.158 264.7), rgb(54, 93, 189).
Aa
White text reads best on this color (6.07:1).
About this color
#365DBD is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.158 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.041 away. White text reads best on it, at 6.07:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.45:1 |
| White text | 6.07:1 |
Values
| HEX | #365DBD |
| RGB | rgb(54, 93, 189) |
| HSL | hsl(223, 56%, 48%) |
| OKLCH | oklch(50.4% 0.158 264.7) |
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 #365DBD | 6.07:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #365DBD | 3.45:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #365DBD text on white | 6.07:1 | AA | Lc 80.0 | Fine for body text |
| #365DBD text on black | 3.45:1 | AA large text | Lc -21.9 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CBD9F6
oklch(88.4% 0.043 265)
-
Step 300
300
#A8C1F3
oklch(81% 0.076 264)
-
Step 400
400
#7B9FED
oklch(70.8% 0.122 264.6)
-
Step 500
500
#5A84E7
oklch(63.1% 0.156 265)
-
Step 600
600
#406CD5
oklch(55.7% 0.169 264.5)
-
Step 700
700 (this color)
#365DBD
oklch(50.4% 0.158 264.7)
-
Step 800
800
#2A4995
oklch(42.6% 0.13 264.7)
-
Step 900
900
#263E77
oklch(37.7% 0.102 264.8)
-
Step 950
950
#162546
oklch(27.1% 0.065 264.1)
#365DBD 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) | #2369C0 | 0.032 |
| Deuteranopia (no green cones) | #005CBB | 0.031 |
| Tritanopia (no blue cones) | #007484 | 0.127 |
| Achromatopsia (no color) | #626262 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #365DBD
#365DBD
oklch(50.4% 0.158 264.7)
- #7F5E00
#7F5E00
oklch(50.2% 0.103 84.6)
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 #365DBD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.041
- French Blue #436BAD ΔE 0.052
- Warm Blue #4B57DB ΔE 0.055
- Iris #6258C4 ΔE 0.057
- Royal Blue #4169E1 ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.068
- Dusky Blue #475F94 ΔE 0.069
- Dark Periwinkle #665FD1 ΔE 0.070
Use #365DBD 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.