#3772BA#3772BA
#3772BA is a mid, vivid cyan. Relative luminance 0.164; OKLCH L 54.8% C 0.128 H 254.9°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).
Color values
| HEX | #3772BA |
|---|---|
| RGB | rgb(55, 114, 186) |
| HSL | hsl(213, 54%, 47%) |
| HSV | hsv(213, 70%, 73%) |
| CMYK | cmyk(70.4%, 38.7%, 0%, 27.1%) |
| CIE-LAB | lab(47.48, 5.02, -43.54) |
| CIE-LCH | lch(47.48, 43.83, 276.58°) |
| OKLab | oklab(54.83% -0.0336 -0.124) |
| OKLCH | oklch(54.83% 0.128 254.9) |
| XYZ | xyz(16.4525, 16.3903, 48.7414) |
| Luminance | 0.1639 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Medium Blue
#2C6FBB
ΔE00 1.30
Flat Blue
#3C73A8
ΔE00 2.32
Windows Blue
#3778BF
ΔE00 2.34
Bluish
#2976BB
ΔE00 2.67
Mid Blue
#276AB3
ΔE00 3.15
Muted Blue
#3B719F
ΔE00 3.67
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3772BA #BA7F37
analogous
#37B4BA #3772BA #3D37BA
triadic
#3772BA #BA3772 #72BA37
tetradic
#3772BA #BA37B4 #BA7F37 #37BA3D
square
#3772BA #BA37B4 #BA7F37 #37BA3D
split-complementary
#3772BA #BA3D37 #B4BA37
monochromatic
#1B385C #29558B #3772BA #5F91D0 #8EB2DE
Accessibility & contrast
On white
4.91
#3772BA on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.28
#3772BA on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3772BA
4.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3772BA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3772BA | 1.00 | 4.91 | 4.28 | 4.91 |
| #FFFFFF | 4.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.28 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5177BD
Deuteranopia (green-blind)
#3D6BB9
Tritanopia (blue-blind)
#00838D
Achromatopsia (no color)
#717171
Design tokens & code
CSS
--color: #3772ba; /* rgb */ color: rgb(55, 114, 186); /* oklch */ color: oklch(54.8% 0.128 254.9);
Tailwind
colors: {
custom: {
50: '#7d9acf',
500: '#3772ba',
950: '#000000',
},
}SCSS
$custom: #3772ba; $custom-light: #7d9acf; $custom-dark: #000000;
JSON
{
"hex": "#3772ba",
"rgb": {
"r": 55,
"g": 114,
"b": 186
},
"hsl": {
"h": 212.977,
"s": 54.357,
"l": 47.255
},
"oklch": {
"l": 0.54828,
"c": 0.12848,
"h": 254.9
},
"luminance": 0.16392
}Semantic roles & 50–950 ramp
primary
#3772BA
secondary
#C8AA85
accent
#9B4ADE
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0E14
muted
#7C7E82