#565DAB
Closest named color: French Blue (#436BAD). oklch(51.1% 0.122 277.3), rgb(86, 93, 171).
Aa
White text reads best on this color (5.91:1).
About this color
#565DAB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.122 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.041 away. White text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.54:1 |
| White text | 5.91:1 |
Values
| HEX | #565DAB |
| RGB | rgb(86, 93, 171) |
| HSL | hsl(235, 34%, 50%) |
| OKLCH | oklch(51.1% 0.122 277.3) |
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 #565DAB | 5.91:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #565DAB | 3.54:1 | AA large text | Lc 24.6 | Dividers and decoration only |
| #565DAB text on white | 5.91:1 | AA | Lc 79.4 | Fine for body text |
| #565DAB text on black | 3.54:1 | AA large text | Lc -22.4 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B7BEE7
oklch(81% 0.058 277.4)
-
Step 400
400
#929BDC
oklch(70.7% 0.096 277.6)
-
Step 500
500
#7881D2
oklch(63.1% 0.122 277.5)
-
Step 600
600
#6169BF
oklch(55.5% 0.132 277.2)
-
Step 700
700 (this color)
#565DAB
oklch(51.1% 0.122 277.3)
-
Step 800
800
#424885
oklch(42.7% 0.1 277)
-
Step 900
900
#383D6B
oklch(37.9% 0.078 277.3)
-
Step 950
950
#20243F
oklch(27.1% 0.05 276.1)
#565DAB 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) | #3D68AE | 0.039 |
| Deuteranopia (no green cones) | #3561A9 | 0.040 |
| Tritanopia (no blue cones) | #356E7C | 0.108 |
| Achromatopsia (no color) | #646464 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #565DAB
#565DAB
oklch(51.1% 0.122 277.3)
- #776600
#776600
oklch(51.1% 0.106 97.7)
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 #565DAB, closest first.
No curated palette has a color within ΔE 0.04 of #565DAB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.041
- Dusky Blue #475F94 ΔE 0.044
- Iris #6258C4 ΔE 0.046
- Mid Blue #276AB3 ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.055
- Twilight #4E518B ΔE 0.059
- Slate Blue #6A5ACD ΔE 0.062
- Dark Periwinkle #665FD1 ΔE 0.064
Use #565DAB 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.