#3771AE#3771AE
#3771AE is a mid, moderate cyan. Relative luminance 0.157; OKLCH L 53.9% C 0.114 H 251.7°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).
Color values
| HEX | #3771AE |
|---|---|
| RGB | rgb(55, 113, 174) |
| HSL | hsl(211, 52%, 45%) |
| HSV | hsv(211, 68%, 68%) |
| CMYK | cmyk(68.4%, 35.1%, 0%, 31.8%) |
| CIE-LAB | lab(46.55, 1.30, -38.05) |
| CIE-LCH | lch(46.55, 38.08, 271.96°) |
| OKLab | oklab(53.89% -0.0357 -0.108) |
| OKLCH | oklch(53.89% 0.114 251.7) |
| XYZ | xyz(15.1178, 15.6769, 42.2654) |
| Luminance | 0.1568 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Flat Blue
#3C73A8
ΔE00 1.16
Medium Blue
#2C6FBB
ΔE00 1.54
Muted Blue
#3B719F
ΔE00 2.29
Bluish
#2976BB
ΔE00 2.58
Mid Blue
#276AB3
ΔE00 2.59
Windows Blue
#3778BF
ΔE00 3.11
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3771AE #AE7437
analogous
#37ADAE #3771AE #3837AE
triadic
#3771AE #AE3771 #71AE37
tetradic
#3771AE #AE37AD #AE7437 #37AE38
square
#3771AE #AE37AD #AE7437 #37AE38
split-complementary
#3771AE #AE3837 #ADAE37
monochromatic
#1A3551 #28537F #3771AE #5890CA #86AFD9
Accessibility & contrast
On white
5.08
#3771AE on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.14
#3771AE on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3771AE
5.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3771AE | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3771AE | 1.00 | 5.08 | 4.14 | 5.08 |
| #FFFFFF | 5.08 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.14 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.08 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5674B1
Deuteranopia (green-blind)
#4569AD
Tritanopia (blue-blind)
#007F87
Achromatopsia (no color)
#6E6E6E
Design tokens & code
CSS
--color: #3771ae; /* rgb */ color: rgb(55, 113, 174); /* oklch */ color: oklch(53.9% 0.114 251.7);
Tailwind
colors: {
custom: {
50: '#7b99c6',
500: '#3771ae',
950: '#000000',
},
}SCSS
$custom: #3771ae; $custom-light: #7b99c6; $custom-dark: #000000;
JSON
{
"hex": "#3771ae",
"rgb": {
"r": 55,
"g": 113,
"b": 174
},
"hsl": {
"h": 210.756,
"s": 51.965,
"l": 44.902
},
"oklch": {
"l": 0.53888,
"c": 0.11371,
"h": 251.7
},
"luminance": 0.15678
}Semantic roles & 50–950 ramp
primary
#3771AE
secondary
#C3A17E
accent
#964CDB
background
#F8F9FC
surface
#EFF2F8
border
#CACCD1
text
#0A0D13
muted
#7C7E82