#3F87DA#3F87DA
#3F87DA is a mid, vivid cyan. Relative luminance 0.234; OKLCH L 61.7% C 0.145 H 253.9°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).
Color values
| HEX | #3F87DA |
|---|---|
| RGB | rgb(63, 135, 218) |
| HSL | hsl(212, 68%, 55%) |
| HSV | hsv(212, 71%, 85%) |
| CMYK | cmyk(71.1%, 38.1%, 0%, 14.5%) |
| CIE-LAB | lab(55.53, 4.91, -48.97) |
| CIE-LCH | lch(55.53, 49.22, 275.72°) |
| OKLab | oklab(61.74% -0.0403 -0.1395) |
| OKLCH | oklch(61.74% 0.145 253.9) |
| XYZ | xyz(23.3641, 23.4441, 69.6099) |
| Luminance | 0.2345 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Sky Blue
#448EE4
ΔE00 2.50
Cool Blue
#4984B8
ΔE00 3.85
Azure
#007FFF
ΔE00 4.01
Dodgerblue
#1E90FF
ΔE00 4.36
Cerulean (survey)
#0485D1
ΔE00 4.61
Dodger Blue
#3E82FC
ΔE00 4.62
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F87DA #DA923F
analogous
#3FD5DA #3F87DA #443FDA
triadic
#3F87DA #DA3F87 #87DA3F
tetradic
#3F87DA #DA3FD5 #DA923F #3FDA44
square
#3F87DA #DA3FD5 #DA923F #3FDA44
split-complementary
#3F87DA #DA443F #D5DA3F
monochromatic
#1A4B85 #2469B8 #3F87DA #72A7E4 #A6C7EE
Accessibility & contrast
On white
3.69
#3F87DA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.69
#3F87DA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3F87DA
5.69:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F87DA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3F87DA | 1.00 | 3.69 | 5.69 | 5.69 |
| #FFFFFF | 3.69 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.69 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.69 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#618DDD
Deuteranopia (green-blind)
#497ED8
Tritanopia (blue-blind)
#009AA6
Achromatopsia (no color)
#858585
Design tokens & code
CSS
--color: #3f87da; /* rgb */ color: rgb(63, 135, 218); /* oklch */ color: oklch(61.7% 0.145 253.9);
Tailwind
colors: {
custom: {
50: '#86a9e6',
500: '#3f87da',
950: '#000000',
},
}SCSS
$custom: #3f87da; $custom-light: #86a9e6; $custom-dark: #000000;
JSON
{
"hex": "#3f87da",
"rgb": {
"r": 63,
"g": 135,
"b": 218
},
"hsl": {
"h": 212.129,
"s": 67.686,
"l": 55.098
},
"oklch": {
"l": 0.61743,
"c": 0.14522,
"h": 253.9
},
"luminance": 0.23447
}Semantic roles & 50–950 ramp
primary
#3F87DA
secondary
#DBBD9A
accent
#9A3DEB
background
#F8FAFE
surface
#F0F4FC
border
#CBCED5
text
#0D0F16
muted
#7D7F84