#365CC3
Closest named color: Warm Blue (#4B57DB). oklch(50.6% 0.167 265.5), rgb(54, 92, 195).
Aa
White text reads best on this color (6.04:1).
About this color
#365CC3 is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.167 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.046 away. White text reads best on it, at 6.04:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.47:1 |
| White text | 6.04:1 |
Values
| HEX | #365CC3 |
| RGB | rgb(54, 92, 195) |
| HSL | hsl(224, 57%, 49%) |
| OKLCH | oklch(50.6% 0.167 265.5) |
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 #365CC3 | 6.04:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #365CC3 | 3.47:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #365CC3 text on white | 6.04:1 | AA | Lc 79.8 | Fine for body text |
| #365CC3 text on black | 3.47:1 | AA large text | Lc -22.1 | 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
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300
#A8C0F6
oklch(80.9% 0.081 266)
-
Step 400
400
#7A9EF1
oklch(70.8% 0.129 265.5)
-
Step 500
500
#5983EC
oklch(63.1% 0.164 265.5)
-
Step 600
600
#406ADB
oklch(55.7% 0.179 265.5)
-
Step 700
700 (this color)
#365CC3
oklch(50.6% 0.167 265.5)
-
Step 800
800
#2A489A
oklch(42.8% 0.139 265.7)
-
Step 900
900
#253D7A
oklch(37.6% 0.108 265.4)
-
Step 950
950
#162447
oklch(26.9% 0.068 265.6)
#365CC3 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) | #1369C7 | 0.036 |
| Deuteranopia (no green cones) | #005CC1 | 0.030 |
| Tritanopia (no blue cones) | #007586 | 0.135 |
| Achromatopsia (no color) | #636363 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #365CC3
#365CC3
oklch(50.6% 0.167 265.5)
- #805F00
#805F00
oklch(50.6% 0.104 84.8)
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 #365CC3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.046
- Mid Blue #276AB3 ΔE 0.048
- Iris #6258C4 ΔE 0.056
- Royal Blue #4169E1 ΔE 0.058
- French Blue #436BAD ΔE 0.060
- Azul #1D5DEC ΔE 0.065
- Dark Periwinkle #665FD1 ΔE 0.067
- Blue Blue #2242C7 ΔE 0.068
Use #365CC3 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.