#5565C1
Closest named color: Iris (#6258C4). oklch(54% 0.144 273.2), rgb(85, 101, 193).
Aa
White text reads best on this color (5.22:1).
About this color
#5565C1 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.144 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.036 away. White text reads best on it, at 5.22:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 4.01:1 |
| White text | 5.22:1 |
Values
| HEX | #5565C1 |
| RGB | rgb(85, 101, 193) |
| HSL | hsl(231, 47%, 55%) |
| OKLCH | oklch(54% 0.144 273.2) |
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 #5565C1 | 5.22:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #5565C1 | 4.01:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #5565C1 text on white | 5.22:1 | AA | Lc 75.7 | Fine for body text |
| #5565C1 text on black | 4.01:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D1D8F2
oklch(88.5% 0.037 273.7)
-
Step 300
300
#B3BEEB
oklch(80.8% 0.065 274.1)
-
Step 400
400
#8B9CE1
oklch(70.7% 0.103 272.9)
-
Step 500
500
#7082D9
oklch(63.1% 0.132 273.2)
-
Step 600
600 (this color)
#5565C1
oklch(54% 0.144 273.2)
-
Step 700
700
#4958AB
oklch(49.1% 0.133 272.9)
-
Step 800
800
#3C488B
oklch(42.7% 0.111 273.2)
-
Step 900
900
#333D6F
oklch(37.7% 0.086 273.1)
-
Step 950
950
#1E2441
oklch(27% 0.055 273.4)
#5565C1 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) | #3971C4 | 0.039 |
| Deuteranopia (no green cones) | #2B68BF | 0.043 |
| Tritanopia (no blue cones) | #17798A | 0.126 |
| Achromatopsia (no color) | #6C6C6C | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5565C1
#5565C1
oklch(54% 0.144 273.2)
- #856C00
#856C00
oklch(54% 0.111 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 #5565C1, closest first.
No curated palette has a color within ΔE 0.04 of #5565C1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.036
- Dark Periwinkle #665FD1 ΔE 0.038
- French Blue #436BAD ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.044
- Light Indigo #6D5ACF ΔE 0.048
- Royal Blue #4169E1 ΔE 0.053
- Mid Blue #276AB3 ΔE 0.053
- Windows Blue #3778BF ΔE 0.056
Use #5565C1 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.