#3F7CCC#3F7CCC

#3F7CCC is a mid, vivid cyan. Relative luminance 0.198; OKLCH L 58.5% C 0.139 H 256.1°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX#3F7CCC
RGBrgb(63, 124, 204)
HSLhsl(214, 58%, 52%)
HSVhsv(214, 69%, 80%)
CMYKcmyk(69.1%, 39.2%, 0%, 20%)
CIE-LABlab(51.64, 6.58, -47.23)
CIE-LCHlch(51.64, 47.69, 277.93°)
OKLaboklab(58.47% -0.0332 -0.1346)
OKLCHoklch(58.47% 0.139 256.1)
XYZxyz(20.1527, 19.8296, 59.8805)
Luminance0.1983 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F7CCC #CC8F3F
analogous
#3FC2CC #3F7CCC #493FCC
triadic
#3F7CCC #CC3F7C #7CCC3F
tetradic
#3F7CCC #CC3FC2 #CC8F3F #3FCC49
square
#3F7CCC #CC3FC2 #CC8F3F #3FCC49
split-complementary
#3F7CCC #CC493F #C2CC3F
monochromatic
#1E4372 #2B5FA3 #3F7CCC #6F9DD9 #A0BEE6

Accessibility & contrast

On white

4.23
#3F7CCC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.97
#3F7CCC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CCC
4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F7CCC#FFFFFF#000000##000000
##3F7CCC1.004.234.974.97
#FFFFFF4.231.0021.0021.00
#0000004.9721.001.001.00
##0000004.9721.001.001.00

Color blindness preview

Protanopia (red-blind)
#5782CF
Deuteranopia (green-blind)
#4275CA
Tritanopia (blue-blind)
#008F9A
Achromatopsia (no color)
#7B7B7B

Design tokens & code

CSS
--color: #3f7ccc;
/* rgb */ color: rgb(63, 124, 204);
/* oklch */ color: oklch(58.5% 0.139 256.1);
Tailwind
colors: {
  custom: {
    50: '#84a1dc',
    500: '#3f7ccc',
    950: '#000000',
  },
}
SCSS
$custom: #3f7ccc;
$custom-light: #84a1dc;
$custom-dark: #000000;
JSON
{
  "hex": "#3f7ccc",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 204
  },
  "hsl": {
    "h": 214.043,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58471,
    "c": 0.13863,
    "h": 256.1
  },
  "luminance": 0.19832
}

Semantic roles & 50–950 ramp

primary
#3F7CCC
secondary
#D2B895
accent
#9E47E1
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #3F7CCC

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

Preview Lab → · Contrast checker → · Palette generator →

#3F7CCC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva