#536AAC
Closest named color: French Blue (#436BAD). oklch(53.7% 0.107 268.1), rgb(83, 106, 172).
Aa
White text reads best on this color (5.21:1).
About this color
#536AAC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.107 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.018 away. White text reads best on it, at 5.21:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.02:1 |
| White text | 5.21:1 |
Values
| HEX | #536AAC |
| RGB | rgb(83, 106, 172) |
| HSL | hsl(224, 35%, 50%) |
| OKLCH | oklch(53.7% 0.107 268.1) |
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 #536AAC | 5.21:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #536AAC | 4.02:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #536AAC text on white | 5.21:1 | AA | Lc 75.8 | Fine for body text |
| #536AAC text on black | 4.02:1 | AA large text | Lc -26.0 | 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
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B3C0E1
oklch(80.9% 0.049 268.3)
-
Step 400
400
#8C9FD2
oklch(70.7% 0.078 268.6)
-
Step 500
500
#7087C6
oklch(63.2% 0.099 268.2)
-
Step 600
600 (this color)
#536AAC
oklch(53.7% 0.107 268.1)
-
Step 700
700
#485D99
oklch(49% 0.1 268)
-
Step 800
800
#3C4C7C
oklch(42.6% 0.083 268.8)
-
Step 900
900
#334064
oklch(37.7% 0.064 268.1)
-
Step 950
950
#1E263B
oklch(27.2% 0.041 267.7)
#536AAC 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) | #5071AF | 0.019 |
| Deuteranopia (no green cones) | #4669AB | 0.016 |
| Tritanopia (no blue cones) | #2B7883 | 0.095 |
| Achromatopsia (no color) | #6C6C6C | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536AAC
#536AAC
oklch(53.7% 0.107 268.1)
- #876907
#876907
oklch(53.6% 0.107 88.4)
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 #536AAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.018
- Flat Blue #3C73A8 ΔE 0.035
- Muted Blue #3B719F ΔE 0.041
- Mid Blue #276AB3 ΔE 0.043
- Dull Blue #49759C ΔE 0.046
- Windows Blue #3778BF ΔE 0.047
- Dusky Blue #475F94 ΔE 0.049
- Nice Blue #107AB0 ΔE 0.060
Use #536AAC 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.