#566396
Closest named color: Dusky Blue (#475F94). oklch(51.1% 0.083 272.3), rgb(86, 99, 150).
Aa
White text reads best on this color (5.79:1).
About this color
#566396 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.083 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.024 away. White text reads best on it, at 5.79:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.62:1 |
| White text | 5.79:1 |
Values
| HEX | #566396 |
| RGB | rgb(86, 99, 150) |
| HSL | hsl(228, 27%, 46%) |
| OKLCH | oklch(51.1% 0.083 272.3) |
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 #566396 | 5.79:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #566396 | 3.62:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #566396 text on white | 5.79:1 | AA | Lc 79.0 | Fine for body text |
| #566396 text on black | 3.62:1 | AA large text | Lc -22.8 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D4D9E8
oklch(88.6% 0.021 271.2)
-
Step 300
300
#B7C0DB
oklch(80.9% 0.039 270.9)
-
Step 400
400
#929FC9
oklch(70.7% 0.063 271.3)
-
Step 500
500
#7886BB
oklch(63% 0.082 272.5)
-
Step 600
600
#6170A8
oklch(55.7% 0.089 271.8)
-
Step 700
700 (this color)
#566396
oklch(51.1% 0.083 272.3)
-
Step 800
800
#424C75
oklch(42.7% 0.069 272.7)
-
Step 900
900
#38405E
oklch(37.8% 0.053 272.2)
-
Step 950
950
#212537
oklch(26.9% 0.034 274.3)
#566396 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) | #516898 | 0.015 |
| Deuteranopia (no green cones) | #4C6395 | 0.014 |
| Tritanopia (no blue cones) | #416D75 | 0.074 |
| Achromatopsia (no color) | #656565 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #566396
#566396
oklch(51.1% 0.083 272.3)
- #776528
#776528
oklch(51.1% 0.083 92.8)
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 #566396, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.024
- Denim #3B638C ΔE 0.038
- French Blue #436BAD ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.044
- Muted Blue #3B719F ΔE 0.046
- Dull Blue #49759C ΔE 0.051
- Flat Blue #3C73A8 ΔE 0.052
- Dusk #4E5481 ΔE 0.052
Use #566396 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.