#3F88D4#3F88D4
#3F88D4 is a mid, vivid cyan. Relative luminance 0.234; OKLCH L 61.6% C 0.137 H 251.8°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).
Color values
| HEX | #3F88D4 |
|---|---|
| RGB | rgb(63, 136, 212) |
| HSL | hsl(211, 63%, 54%) |
| HSV | hsv(211, 70%, 83%) |
| CMYK | cmyk(70.3%, 35.8%, 0%, 16.9%) |
| CIE-LAB | lab(55.50, 2.19, -45.64) |
| CIE-LCH | lch(55.50, 45.69, 272.74°) |
| OKLab | oklab(61.62% -0.0427 -0.1297) |
| OKLCH | oklch(61.62% 0.137 251.8) |
| XYZ | xyz(22.7333, 23.4161, 65.5963) |
| Luminance | 0.2342 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Sky Blue
#448EE4
ΔE00 2.64
Cool Blue
#4984B8
ΔE00 3.33
Cerulean (survey)
#0485D1
ΔE00 3.84
Steel Blue
#4682B4
ΔE00 4.15
Dodgerblue
#1E90FF
ΔE00 4.48
Water Blue
#0E87CC
ΔE00 4.48
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F88D4 #D48B3F
analogous
#3FD3D4 #3F88D4 #413FD4
triadic
#3F88D4 #D43F88 #88D43F
tetradic
#3F88D4 #D43FD3 #D48B3F #3FD441
square
#3F88D4 #D43FD3 #D48B3F #3FD441
split-complementary
#3F88D4 #D4413F #D3D43F
monochromatic
#1C4B7D #276AAF #3F88D4 #71A7DF #A3C6EA
Accessibility & contrast
On white
3.69
#3F88D4 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.68
#3F88D4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3F88D4
5.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F88D4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3F88D4 | 1.00 | 3.69 | 5.68 | 5.68 |
| #FFFFFF | 3.69 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.68 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.68 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#668DD7
Deuteranopia (green-blind)
#507FD2
Tritanopia (blue-blind)
#009AA4
Achromatopsia (no color)
#858585
Design tokens & code
CSS
--color: #3f88d4; /* rgb */ color: rgb(63, 136, 212); /* oklch */ color: oklch(61.6% 0.137 251.8);
Tailwind
colors: {
custom: {
50: '#85aae1',
500: '#3f88d4',
950: '#000000',
},
}SCSS
$custom: #3f88d4; $custom-light: #85aae1; $custom-dark: #000000;
JSON
{
"hex": "#3f88d4",
"rgb": {
"r": 63,
"g": 136,
"b": 212
},
"hsl": {
"h": 210.604,
"s": 63.404,
"l": 53.922
},
"oklch": {
"l": 0.61618,
"c": 0.1366,
"h": 251.8
},
"luminance": 0.23419
}Semantic roles & 50–950 ramp
primary
#3F88D4
secondary
#D7B898
accent
#9641E6
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83