#5572CB
Closest named color: Windows Blue (#3778BF). oklch(57.3% 0.141 268.2), rgb(85, 114, 203).
Aa
Black text reads best on this color (4.65:1).
About this color
#5572CB is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.141 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.039 away. Black text reads best on it, at 4.65:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.65:1 |
| White text | 4.51:1 |
Values
| HEX | #5572CB |
| RGB | rgb(85, 114, 203) |
| HSL | hsl(225, 53%, 56%) |
| OKLCH | oklch(57.3% 0.141 268.2) |
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 #5572CB | 4.51:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #5572CB | 4.65:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #5572CB text on white | 4.51:1 | AA | Lc 71.1 | Content text, not long reading |
| #5572CB text on black | 4.65:1 | AA | Lc -30.6 | Non-text elements, placeholder text |
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
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CFD9F1
oklch(88.5% 0.035 267.6)
-
Step 300
300
#AFC0EB
oklch(80.9% 0.064 268.1)
-
Step 400
400
#869EE0
oklch(70.7% 0.101 268.5)
-
Step 500
500
#6885D8
oklch(63.2% 0.13 268)
-
Step 600
600 (this color)
#5572CB
oklch(57.3% 0.141 268.2)
-
Step 700
700
#415AAA
oklch(49% 0.131 268.2)
-
Step 800
800
#364A8A
oklch(42.7% 0.109 268.5)
-
Step 900
900
#2E3E6E
oklch(37.5% 0.085 268.2)
-
Step 950
950
#1B2541
oklch(27% 0.054 267.8)
#5572CB 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) | #4A7CCE | 0.027 |
| Deuteranopia (no green cones) | #3A72C9 | 0.028 |
| Tritanopia (no blue cones) | #008694 | 0.126 |
| Achromatopsia (no color) | #767676 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5572CB
#5572CB
oklch(57.3% 0.141 268.2)
- #957300
#957300
oklch(57.3% 0.117 88)
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 #5572CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.039
- Royal Blue #4169E1 ΔE 0.049
- Dark Periwinkle #665FD1 ΔE 0.052
- French Blue #436BAD ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.063
- Flat Blue #3C73A8 ΔE 0.063
- Cool Blue #4984B8 ΔE 0.063
- Steel Blue #4682B4 ΔE 0.064
Use #5572CB 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.