#3774CB#3774CB

#3774CB is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.3% C 0.149 H 257.7°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX#3774CB
RGBrgb(55, 116, 203)
HSLhsl(215, 59%, 51%)
HSVhsv(215, 73%, 80%)
CMYKcmyk(72.9%, 42.9%, 0%, 20.4%)
CIE-LABlab(49.02, 10.00, -50.86)
CIE-LCHlch(49.02, 51.83, 281.12°)
OKLaboklab(56.34% -0.0317 -0.1455)
OKLCHoklch(56.34% 0.149 257.7)
XYZxyz(18.5965, 17.6128, 58.9079)
Luminance0.1762 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3774CB #CB8E37
analogous
#37BECB #3774CB #4437CB
triadic
#3774CB #CB3774 #74CB37
tetradic
#3774CB #CB37BE #CB8E37 #37CB44
square
#3774CB #CB37BE #CB8E37 #37CB44
split-complementary
#3774CB #CB4437 #BECB37
monochromatic
#1C3D6C #29589C #3774CB #6896D8 #98B8E4

Accessibility & contrast

On white

4.64
#3774CB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.52
#3774CB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3774CB
4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3774CB#FFFFFF#000000##FFFFFF
##3774CB1.004.644.524.64
#FFFFFF4.641.0021.001.00
#0000004.5221.001.0021.00
##FFFFFF4.641.0021.001.00

Color blindness preview

Protanopia (red-blind)
#497CCE
Deuteranopia (green-blind)
#2F6EC9
Tritanopia (blue-blind)
#008895
Achromatopsia (no color)
#747474

Design tokens & code

CSS
--color: #3774cb;
/* rgb */ color: rgb(55, 116, 203);
/* oklch */ color: oklch(56.3% 0.149 257.7);
Tailwind
colors: {
  custom: {
    50: '#809bdb',
    500: '#3774cb',
    950: '#000000',
  },
}
SCSS
$custom: #3774cb;
$custom-light: #809bdb;
$custom-dark: #000000;
JSON
{
  "hex": "#3774cb",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 203
  },
  "hsl": {
    "h": 215.27,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56338,
    "c": 0.14888,
    "h": 257.7
  },
  "luminance": 0.17615
}

Semantic roles & 50–950 ramp

primary
#3774CB
secondary
#D0B58E
accent
#A246E2
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #3774CB

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

Preview Lab → · Contrast checker → · Palette generator →

#3774CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva