#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
RGBrgb(63, 136, 212)
HSLhsl(211, 63%, 54%)
HSVhsv(211, 70%, 83%)
CMYKcmyk(70.3%, 35.8%, 0%, 16.9%)
CIE-LABlab(55.50, 2.19, -45.64)
CIE-LCHlch(55.50, 45.69, 272.74°)
OKLaboklab(61.62% -0.0427 -0.1297)
OKLCHoklch(61.62% 0.137 251.8)
XYZxyz(22.7333, 23.4161, 65.5963)
Luminance0.2342 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

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
##3F88D41.003.695.685.68
#FFFFFF3.691.0021.0021.00
#0000005.6821.001.001.00
##0000005.6821.001.001.00

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

Preview Lab

Preview with #3F88D4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#3F88D4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva