#506AAA
Closest named color: French Blue (#436BAD). oklch(53.3% 0.106 266.2), rgb(80, 106, 170).
Aa
White text reads best on this color (5.27:1).
About this color
#506AAA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.106 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.015 away. White text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.98:1 |
| White text | 5.27:1 |
Values
| HEX | #506AAA |
| RGB | rgb(80, 106, 170) |
| HSL | hsl(223, 36%, 49%) |
| OKLCH | oklch(53.3% 0.106 266.2) |
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 #506AAA | 5.27:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #506AAA | 3.98:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #506AAA text on white | 5.27:1 | AA | Lc 76.1 | Fine for body text |
| #506AAA text on black | 3.98:1 | AA large text | Lc -25.7 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B2C1E0
oklch(81% 0.047 264.9)
-
Step 400
400
#8AA0D1
oklch(70.7% 0.076 265.7)
-
Step 500
500
#6E88C5
oklch(63.2% 0.097 266)
-
Step 600
600 (this color)
#506AAA
oklch(53.3% 0.106 266.2)
-
Step 700
700
#465E98
oklch(49% 0.098 265.9)
-
Step 800
800
#3A4D7C
oklch(42.7% 0.082 266.3)
-
Step 900
900
#324063
oklch(37.6% 0.063 266.8)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#506AAA 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) | #5170AD | 0.017 |
| Deuteranopia (no green cones) | #4668A9 | 0.014 |
| Tritanopia (no blue cones) | #247882 | 0.095 |
| Achromatopsia (no color) | #6C6C6C | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #506AAA
#506AAA
oklch(53.3% 0.106 266.2)
- #88670C
#88670C
oklch(53.3% 0.105 85.5)
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 #506AAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.015
- Flat Blue #3C73A8 ΔE 0.032
- Muted Blue #3B719F ΔE 0.036
- Mid Blue #276AB3 ΔE 0.041
- Dull Blue #49759C ΔE 0.043
- Dusky Blue #475F94 ΔE 0.045
- Windows Blue #3778BF ΔE 0.048
- Denim #3B638C ΔE 0.057
Use #506AAA 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.