#5563AD
Closest named color: French Blue (#436BAD). oklch(52.4% 0.117 273.6), rgb(85, 99, 173).
Aa
White text reads best on this color (5.56:1).
About this color
#5563AD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.117 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.029 away. White text reads best on it, at 5.56:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #5563AD |
| RGB | rgb(85, 99, 173) |
| HSL | hsl(230, 35%, 51%) |
| OKLCH | oklch(52.4% 0.117 273.6) |
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 #5563AD | 5.56:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #5563AD | 3.77:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #5563AD text on white | 5.56:1 | AA | Lc 77.7 | Fine for body text |
| #5563AD text on black | 3.77:1 | AA large text | Lc -24.1 | 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 600.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300
#B5BFE4
oklch(80.9% 0.053 273.3)
-
Step 400
400
#8F9DD6
oklch(70.6% 0.085 273.4)
-
Step 500
500
#7584CB
oklch(63.1% 0.108 273.8)
-
Step 600
600 (this color)
#5563AD
oklch(52.4% 0.117 273.6)
-
Step 700
700
#4E5A9E
oklch(49% 0.109 274.1)
-
Step 800
800
#404A80
oklch(42.7% 0.09 274)
-
Step 900
900
#363E67
oklch(37.7% 0.071 274.1)
-
Step 950
950
#1F253C
oklch(27% 0.044 272.1)
#5563AD 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) | #456CB0 | 0.028 |
| Deuteranopia (no green cones) | #3C65AB | 0.030 |
| Tritanopia (no blue cones) | #30737F | 0.105 |
| Achromatopsia (no color) | #686868 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5563AD
#5563AD
oklch(52.4% 0.117 273.6)
- #7F6800
#7F6800
oklch(52.4% 0.107 93.6)
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 #5563AD, closest first.
No curated palette has a color within ΔE 0.04 of #5563AD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.029
- Dusky Blue #475F94 ΔE 0.045
- Mid Blue #276AB3 ΔE 0.047
- Iris #6258C4 ΔE 0.051
- Flat Blue #3C73A8 ΔE 0.052
- Muted Blue #3B719F ΔE 0.056
- Denim Blue #3B5B92 ΔE 0.059
- Windows Blue #3778BF ΔE 0.062
Use #5563AD 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.