#3C78CF#3C78CF

#3C78CF is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.7% C 0.148 H 257.9°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX#3C78CF
RGBrgb(60, 120, 207)
HSLhsl(216, 60%, 52%)
HSVhsv(216, 71%, 81%)
CMYKcmyk(71%, 42%, 0%, 18.8%)
CIE-LABlab(50.57, 9.67, -50.66)
CIE-LCHlch(50.57, 51.58, 280.81°)
OKLaboklab(57.66% -0.031 -0.1447)
OKLCHoklch(57.66% 0.148 257.9)
XYZxyz(19.8383, 18.8965, 61.6212)
Luminance0.1890 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3C78CF #CF933C
analogous
#3CC2CF #3C78CF #493CCF
triadic
#3C78CF #CF3C78 #78CF3C
tetradic
#3C78CF #CF3CC2 #CF933C #3CCF49
square
#3C78CF #CF3CC2 #CF933C #3CCF49
split-complementary
#3C78CF #CF493C #C2CF3C
monochromatic
#1D4074 #295BA5 #3C78CF #6D9ADB #9EBCE7

Accessibility & contrast

On white

4.39
#3C78CF on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.78
#3C78CF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3C78CF
4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3C78CF#FFFFFF#000000##000000
##3C78CF1.004.394.784.78
#FFFFFF4.391.0021.0021.00
#0000004.7821.001.001.00
##0000004.7821.001.001.00

Color blindness preview

Protanopia (red-blind)
#4E80D2
Deuteranopia (green-blind)
#3572CD
Tritanopia (blue-blind)
#008C99
Achromatopsia (no color)
#787878

Design tokens & code

CSS
--color: #3c78cf;
/* rgb */ color: rgb(60, 120, 207);
/* oklch */ color: oklch(57.7% 0.148 257.9);
Tailwind
colors: {
  custom: {
    50: '#839ede',
    500: '#3c78cf',
    950: '#000000',
  },
}
SCSS
$custom: #3c78cf;
$custom-light: #839ede;
$custom-dark: #000000;
JSON
{
  "hex": "#3c78cf",
  "rgb": {
    "r": 60,
    "g": 120,
    "b": 207
  },
  "hsl": {
    "h": 215.51,
    "s": 60.494,
    "l": 52.353
  },
  "oklch": {
    "l": 0.57658,
    "c": 0.14803,
    "h": 257.9
  },
  "luminance": 0.18899
}

Semantic roles & 50–950 ramp

primary
#3C78CF
secondary
#D3B993
accent
#A344E4
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #3C78CF

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

Preview Lab → · Contrast checker → · Palette generator →

#3C78CF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva