#3563C6
Closest named color: Mid Blue (#276AB3). oklch(52.3% 0.163 263.2), rgb(53, 99, 198).
Aa
White text reads best on this color (5.59:1).
About this color
#3563C6 is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.163 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.039 away. White text reads best on it, at 5.59:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.75:1 |
| White text | 5.59:1 |
Values
| HEX | #3563C6 |
| RGB | rgb(53, 99, 198) |
| HSL | hsl(221, 58%, 49%) |
| OKLCH | oklch(52.3% 0.163 263.2) |
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 #3563C6 | 5.59:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #3563C6 | 3.75:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #3563C6 text on white | 5.59:1 | AA | Lc 77.6 | Fine for body text |
| #3563C6 text on black | 3.75:1 | AA large text | Lc -24.2 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CADAF7
oklch(88.5% 0.044 262.4)
-
Step 300
300
#A6C1F4
oklch(80.9% 0.078 262.9)
-
Step 400
400
#779FEF
oklch(70.7% 0.126 263.3)
-
Step 500
500
#5485EA
oklch(63.2% 0.161 263.1)
-
Step 600
600
#3A6CD8
oklch(55.6% 0.175 263.2)
-
Step 700
700 (this color)
#3563C6
oklch(52.3% 0.163 263.2)
-
Step 800
800
#254A98
oklch(42.8% 0.135 262.9)
-
Step 900
900
#233E79
oklch(37.7% 0.106 263.6)
-
Step 950
950
#152547
oklch(27.1% 0.067 263.6)
#3563C6 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) | #286FCA | 0.031 |
| Deuteranopia (no green cones) | #0061C4 | 0.029 |
| Tritanopia (no blue cones) | #007B8B | 0.130 |
| Achromatopsia (no color) | #686868 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3563C6
#3563C6
oklch(52.3% 0.163 263.2)
- #876300
#876300
oklch(52.3% 0.107 83.6)
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 #3563C6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.039
- Royal Blue #4169E1 ΔE 0.046
- Warm Blue #4B57DB ΔE 0.049
- French Blue #436BAD ΔE 0.050
- Iris #6258C4 ΔE 0.058
- Windows Blue #3778BF ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.062
- Azul #1D5DEC ΔE 0.063
Use #3563C6 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.