#3773AC#3773AC
#3773AC is a mid, moderate cyan. Relative luminance 0.161; OKLCH L 54.2% C 0.109 H 249.5°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3773AC |
|---|---|
| RGB | rgb(55, 115, 172) |
| HSL | hsl(209, 52%, 45%) |
| HSV | hsv(209, 68%, 67%) |
| CMYK | cmyk(68%, 33.1%, 0%, 32.5%) |
| CIE-LAB | lab(47.04, -0.63, -36.11) |
| CIE-LCH | lch(47.04, 36.11, 269.00°) |
| OKLab | oklab(54.24% -0.0383 -0.1023) |
| OKLCH | oklch(54.24% 0.109 249.5) |
| XYZ | xyz(15.1499, 16.0507, 41.3214) |
| Luminance | 0.1605 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Flat Blue
#3C73A8
ΔE00 0.62
Muted Blue
#3B719F
ΔE00 1.90
Bluish
#2976BB
ΔE00 2.01
Medium Blue
#2C6FBB
ΔE00 2.33
Windows Blue
#3778BF
ΔE00 2.84
Dull Blue
#49759C
ΔE00 3.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3773AC #AC7037
analogous
#37ACAB #3773AC #3738AC
triadic
#3773AC #AC3773 #73AC37
tetradic
#3773AC #AB37AC #AC7037 #38AC37
square
#3773AC #AB37AC #AC7037 #38AC37
split-complementary
#3773AC #AC3738 #ACAB37
monochromatic
#19354F #28547E #3773AC #5792C9 #85B0D8
Accessibility & contrast
On white
4.99
#3773AC on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.21
#3773AC on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3773AC
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3773AC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3773AC | 1.00 | 4.99 | 4.21 | 4.99 |
| #FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5A76AE
Deuteranopia (green-blind)
#496AAB
Tritanopia (blue-blind)
#008087
Achromatopsia (no color)
#707070
Design tokens & code
CSS
--color: #3773ac; /* rgb */ color: rgb(55, 115, 172); /* oklch */ color: oklch(54.2% 0.109 249.5);
Tailwind
colors: {
custom: {
50: '#7b9bc5',
500: '#3773ac',
950: '#000000',
},
}SCSS
$custom: #3773ac; $custom-light: #7b9bc5; $custom-dark: #000000;
JSON
{
"hex": "#3773ac",
"rgb": {
"r": 55,
"g": 115,
"b": 172
},
"hsl": {
"h": 209.231,
"s": 51.542,
"l": 44.51
},
"oklch": {
"l": 0.54242,
"c": 0.1092,
"h": 249.5
},
"luminance": 0.16052
}Semantic roles & 50–950 ramp
primary
#3773AC
secondary
#C29F7D
accent
#924DDB
background
#F7F9FC
surface
#EEF2F8
border
#C9CCD1
text
#0A0E13
muted
#7C7E82