#3478BF#3478BF

#3478BF is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.4% C 0.130 H 252.0°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX#3478BF
RGBrgb(52, 120, 191)
HSLhsl(211, 57%, 48%)
HSVhsv(211, 73%, 75%)
CMYKcmyk(72.8%, 37.2%, 0%, 25.1%)
CIE-LABlab(49.40, 2.72, -43.38)
CIE-LCHlch(49.40, 43.47, 273.59°)
OKLaboklab(56.39% -0.04 -0.1235)
OKLCHoklch(56.39% 0.13 252)
XYZxyz(17.5331, 17.9226, 51.8155)
Luminance0.1792 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3478BF #BF7B34
analogous
#34BEBF #3478BF #3534BF
triadic
#3478BF #BF3478 #78BF34
tetradic
#3478BF #BF34BE #BF7B34 #34BF35
square
#3478BF #BF34BE #BF7B34 #34BF35
split-complementary
#3478BF #BF3534 #BEBF34
monochromatic
#1A3C5F #275A8F #3478BF #5D97D3 #8DB6E0

Accessibility & contrast

On white

4.58
#3478BF on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.59
#3478BF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3478BF
4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3478BF#FFFFFF#000000##000000
##3478BF1.004.584.594.59
#FFFFFF4.581.0021.0021.00
#0000004.5921.001.001.00
##0000004.5921.001.001.00

Color blindness preview

Protanopia (red-blind)
#577CC2
Deuteranopia (green-blind)
#4370BE
Tritanopia (blue-blind)
#008992
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #3478bf;
/* rgb */ color: rgb(52, 120, 191);
/* oklch */ color: oklch(56.4% 0.130 252.0);
Tailwind
colors: {
  custom: {
    50: '#7d9ed2',
    500: '#3478bf',
    950: '#000000',
  },
}
SCSS
$custom: #3478bf;
$custom-light: #7d9ed2;
$custom-dark: #000000;
JSON
{
  "hex": "#3478bf",
  "rgb": {
    "r": 52,
    "g": 120,
    "b": 191
  },
  "hsl": {
    "h": 210.647,
    "s": 57.202,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56386,
    "c": 0.12983,
    "h": 252
  },
  "luminance": 0.17925
}

Semantic roles & 50–950 ramp

primary
#3478BF
secondary
#CAA884
accent
#9647E0
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0E14
muted
#7C7E82

Preview Lab

Preview with #3478BF

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

Preview Lab → · Contrast checker → · Palette generator →

#3478BF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva