#3878C2#3878C2
#3878C2 is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.7% C 0.132 H 253.9°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).
Color values
| HEX | #3878C2 |
|---|---|
| RGB | rgb(56, 120, 194) |
| HSL | hsl(212, 55%, 49%) |
| HSV | hsv(212, 71%, 76%) |
| CMYK | cmyk(71.1%, 38.1%, 0%, 23.9%) |
| CIE-LAB | lab(49.70, 4.38, -44.63) |
| CIE-LCH | lch(49.70, 44.84, 275.61°) |
| OKLab | oklab(56.71% -0.0367 -0.1271) |
| OKLCH | oklch(56.71% 0.132 253.9) |
| XYZ | xyz(18.0814, 18.1668, 53.5821) |
| Luminance | 0.1817 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 0.49
Bluish
#2976BB
ΔE00 2.26
Medium Blue
#2C6FBB
ΔE00 3.40
Flat Blue
#3C73A8
ΔE00 3.43
Steel Blue
#4682B4
ΔE00 4.44
Cool Blue
#4984B8
ΔE00 4.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3878C2 #C28238
analogous
#38BDC2 #3878C2 #3D38C2
triadic
#3878C2 #C23878 #78C238
tetradic
#3878C2 #C238BD #C28238 #38C23D
square
#3878C2 #C238BD #C28238 #38C23D
split-complementary
#3878C2 #C23D38 #BDC238
monochromatic
#1D3D63 #2A5B93 #3878C2 #6598D2 #94B7E0
Accessibility & contrast
On white
4.53
#3878C2 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.63
#3878C2 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3878C2
4.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3878C2 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3878C2 | 1.00 | 4.53 | 4.63 | 4.63 |
| #FFFFFF | 4.53 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.63 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.63 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#567DC5
Deuteranopia (green-blind)
#4170C1
Tritanopia (blue-blind)
#008994
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #3878c2; /* rgb */ color: rgb(56, 120, 194); /* oklch */ color: oklch(56.7% 0.132 253.9);
Tailwind
colors: {
custom: {
50: '#7f9ed5',
500: '#3878c2',
950: '#000000',
},
}SCSS
$custom: #3878c2; $custom-light: #7f9ed5; $custom-dark: #000000;
JSON
{
"hex": "#3878c2",
"rgb": {
"r": 56,
"g": 120,
"b": 194
},
"hsl": {
"h": 212.174,
"s": 55.2,
"l": 49.02
},
"oklch": {
"l": 0.56707,
"c": 0.13229,
"h": 253.9
},
"luminance": 0.18169
}Semantic roles & 50–950 ramp
primary
#3878C2
secondary
#CBAD8A
accent
#9949DF
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0E14
muted
#7C7E83