Named color · #3778BF
Windows Blue
Windows Blue is #3778BF: rgb(55 120 191), hsl(211 55% 48%), oklch(0.565 0.129 252.8). See tints, shades, harmonies, WCAG & APCA contrast, and CSS, Tailwind v4 & SCSS code.
What does Blue mean? → · Windows Blue color name →
#3778BF
oklch(0.565 0.129 252.8)
Color conversions
- HEX
- #3778bf
- RGB
- rgb(55 120 191)
- HSL
- hsl(211 55% 48%)
- HWB
- hwb(211 22% 25%)
- OKLCH
- oklch(0.565 0.129 252.8)
- OKLab
- oklab(0.565 -0.038 -0.123)
- CIE Lab
- lab(48.85 -2.76 -44.09)
- LCH
- lch(48.85 44.18 266.4)
- CMYK
- cmyk(71% 37% 0% 25%)
Tints · Shades · Tones
Tints
- 4C86C6
- 6193CD
- 74A0D4
- 88AEDB
- 9BBBE1
- AFC9E7
- C3D6EE
- D7E4F3
- EBF1F9
Shades
- 2E67A6
- 26578D
- 1E4875
- 16395E
- 0F2A48
- 081D33
- 03101F
- 01050D
- 000102
Tones
- 4079B9
- 497BB3
- 517CAD
- 587DA7
- 607EA1
- 667E9A
- 6D7F94
- 747F8D
- 7A8087
Color harmonies
Complementary +180°
- 3778BF
Windows Blue
- A06900
≈ Cumin Ochre
Analogous -30° +30°
- 3778BF
Windows Blue
- 0083A2
≈ Ahoy! Blue
- 6C6ABF
≈ Ultra Violet
Triadic +120° +240°
- 3778BF
Windows Blue
- B45160
≈ Holly Berry
- 57852D
≈ Weeping Fig
Split-complementary +150° +210°
- 3778BF
Windows Blue
- B35932
≈ Fiery Orange
- 837800
≈ Soft Fig
Tetradic +90° +180° +270°
- 3778BF
Windows Blue
- A8548A
≈ Cyclamen Red
- A06900
≈ Cumin Ochre
- 008C60
≈ Chagall Green
Contrast & accessibility
Ag
AAOn white
WCAG 4.56:1 · APCA Lc 71
Ag
AAOn black
WCAG 4.60:1 · APCA Lc 30
Best text color: #000000
WCAG 4.60:1 (AA) · APCA Lc 30
Contrast pairs
Code snippets
CSS
:root {
--windows-blue: #3778bf;
--windows-blue-rgb: 55 120 191;
--windows-blue-oklch: oklch(0.565 0.129 252.8);
}
.element {
color: var(--windows-blue);
background-color: hsl(211 55% 48%);
border-color: oklch(0.565 0.129 252.8);
}Tailwind CSS v4
@theme {
--color-windows-blue: #3778bf;
--color-windows-blue-50: #ddf8ff;
--color-windows-blue-100: #cbebff;
--color-windows-blue-200: #afd8ff;
--color-windows-blue-300: #8abbf8;
--color-windows-blue-400: #64a2e8;
--color-windows-blue-500: #3f89d8;
--color-windows-blue-600: #3774b7;
--color-windows-blue-700: #2b5d93;
--color-windows-blue-800: #1b446d;
--color-windows-blue-900: #122f4d;
--color-windows-blue-950: #041b33;
}SCSS
$windows-blue: #3778bf;
$windows-blue-rgb: 55, 120, 191;
$windows-blue-light: mix(#fff, $windows-blue, 20%);
$windows-blue-dark: mix(#000, $windows-blue, 20%);
.element {
color: $windows-blue;
box-shadow: 0 0 0 2px rgba($windows-blue, 0.35);
}