#3B77CA#3B77CA
#3B77CA is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 57.1% C 0.143 H 257.1°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).
Color values
| HEX | #3B77CA |
|---|---|
| RGB | rgb(59, 119, 202) |
| HSL | hsl(215, 57%, 51%) |
| HSV | hsv(215, 71%, 79%) |
| CMYK | cmyk(70.8%, 41.1%, 0%, 20.8%) |
| CIE-LAB | lab(49.96, 8.33, -48.78) |
| CIE-LCH | lch(49.96, 49.49, 279.69°) |
| OKLab | oklab(57.09% -0.0318 -0.1393) |
| OKLCH | oklch(57.09% 0.143 257.1) |
| XYZ | xyz(19.0572, 18.3857, 58.4101) |
| Luminance | 0.1839 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 1.93
Bluish
#2976BB
ΔE00 3.58
Medium Blue
#2C6FBB
ΔE00 3.74
Flat Blue
#3C73A8
ΔE00 4.30
Deep Sky Blue
#0D75F8
ΔE00 4.48
Cerulean Blue
#056EEE
ΔE00 4.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3B77CA #CA8E3B
analogous
#3BBFCA #3B77CA #463BCA
triadic
#3B77CA #CA3B77 #77CA3B
tetradic
#3B77CA #CA3BBF #CA8E3B #3BCA46
square
#3B77CA #CA3BBF #CA8E3B #3BCA46
split-complementary
#3B77CA #CA463B #BFCA3B
monochromatic
#1E3F6D #2B5B9D #3B77CA #6B98D7 #9BBAE4
Accessibility & contrast
On white
4.49
#3B77CA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.68
#3B77CA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3B77CA
4.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3B77CA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3B77CA | 1.00 | 4.49 | 4.68 | 4.68 |
| #FFFFFF | 4.49 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.68 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.68 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#507ECD
Deuteranopia (green-blind)
#3871C8
Tritanopia (blue-blind)
#008A97
Achromatopsia (no color)
#777777
Design tokens & code
CSS
--color: #3b77ca; /* rgb */ color: rgb(59, 119, 202); /* oklch */ color: oklch(57.1% 0.143 257.1);
Tailwind
colors: {
custom: {
50: '#829dda',
500: '#3b77ca',
950: '#000000',
},
}SCSS
$custom: #3b77ca; $custom-light: #829dda; $custom-dark: #000000;
JSON
{
"hex": "#3b77ca",
"rgb": {
"r": 59,
"g": 119,
"b": 202
},
"hsl": {
"h": 214.825,
"s": 57.43,
"l": 51.176
},
"oklch": {
"l": 0.57086,
"c": 0.14285,
"h": 257.1
},
"luminance": 0.18388
}Semantic roles & 50–950 ramp
primary
#3B77CA
secondary
#D0B591
accent
#A047E1
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83