#3F77D2#3F77D2

#3F77D2 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.8% C 0.152 H 259.7°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX#3F77D2
RGBrgb(63, 119, 210)
HSLhsl(217, 62%, 54%)
HSVhsv(217, 70%, 82%)
CMYKcmyk(70%, 43.3%, 0%, 17.6%)
CIE-LABlab(50.57, 11.81, -52.35)
CIE-LCHlch(50.57, 53.67, 282.71°)
OKLaboklab(57.75% -0.0273 -0.1497)
OKLCHoklch(57.75% 0.152 259.7)
XYZxyz(20.2754, 18.9014, 63.5401)
Luminance0.1890 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F77D2 #D29A3F
analogous
#3FC0D2 #3F77D2 #503FD2
triadic
#3F77D2 #D23F77 #77D23F
tetradic
#3F77D2 #D23FC0 #D29A3F #3FD250
square
#3F77D2 #D23FC0 #D29A3F #3FD250
split-complementary
#3F77D2 #D2503F #C0D23F
monochromatic
#1D407A #285AAC #3F77D2 #719ADE #A2BDE9

Accessibility & contrast

On white

4.39
#3F77D2 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.78
#3F77D2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F77D2
4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F77D2#FFFFFF#000000##000000
##3F77D21.004.394.784.78
#FFFFFF4.391.0021.0021.00
#0000004.7821.001.001.00
##0000004.7821.001.001.00

Color blindness preview

Protanopia (red-blind)
#4B80D6
Deuteranopia (green-blind)
#3072D0
Tritanopia (blue-blind)
#008C9A
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #3f77d2;
/* rgb */ color: rgb(63, 119, 210);
/* oklch */ color: oklch(57.8% 0.152 259.7);
Tailwind
colors: {
  custom: {
    50: '#859de0',
    500: '#3f77d2',
    950: '#000000',
  },
}
SCSS
$custom: #3f77d2;
$custom-light: #859de0;
$custom-dark: #000000;
JSON
{
  "hex": "#3f77d2",
  "rgb": {
    "r": 63,
    "g": 119,
    "b": 210
  },
  "hsl": {
    "h": 217.143,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.5775,
    "c": 0.15216,
    "h": 259.7
  },
  "luminance": 0.18904
}

Semantic roles & 50–950 ramp

primary
#3F77D2
secondary
#D6BE97
accent
#A743E5
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #3F77D2

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

Preview Lab → · Contrast checker → · Palette generator →

#3F77D2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva