#3F7CC1#3F7CC1

#3F7CC1 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.8% C 0.124 H 253.2°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX#3F7CC1
RGBrgb(63, 124, 193)
HSLhsl(212, 51%, 50%)
HSVhsv(212, 67%, 76%)
CMYKcmyk(67.4%, 35.8%, 0%, 24.3%)
CIE-LABlab(51.06, 2.68, -41.88)
CIE-LCHlch(51.06, 41.97, 273.67°)
OKLaboklab(57.83% -0.0359 -0.1189)
OKLCHoklch(57.83% 0.124 253.2)
XYZxyz(18.8797, 19.3204, 53.1760)
Luminance0.1932 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F7CC1 #C1843F
analogous
#3FBDC1 #3F7CC1 #433FC1
triadic
#3F7CC1 #C13F7C #7CC13F
tetradic
#3F7CC1 #C13FBD #C1843F #3FC143
square
#3F7CC1 #C13FBD #C1843F #3FC143
split-complementary
#3F7CC1 #C1433F #BDC13F
monochromatic
#214165 #305E93 #3F7CC1 #6D9CD0 #9CBBDF

Accessibility & contrast

On white

4.32
#3F7CC1 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.86
#3F7CC1 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CC1
4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F7CC1#FFFFFF#000000##000000
##3F7CC11.004.324.864.86
#FFFFFF4.321.0021.0021.00
#0000004.8621.001.001.00
##0000004.8621.001.001.00

Color blindness preview

Protanopia (red-blind)
#5D80C4
Deuteranopia (green-blind)
#4B74C0
Tritanopia (blue-blind)
#008C95
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #3f7cc1;
/* rgb */ color: rgb(63, 124, 193);
/* oklch */ color: oklch(57.8% 0.124 253.2);
Tailwind
colors: {
  custom: {
    50: '#82a1d4',
    500: '#3f7cc1',
    950: '#000000',
  },
}
SCSS
$custom: #3f7cc1;
$custom-light: #82a1d4;
$custom-dark: #000000;
JSON
{
  "hex": "#3f7cc1",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 193
  },
  "hsl": {
    "h": 211.846,
    "s": 51.181,
    "l": 50.196
  },
  "oklch": {
    "l": 0.57825,
    "c": 0.12422,
    "h": 253.2
  },
  "luminance": 0.19322
}

Semantic roles & 50–950 ramp

primary
#3F7CC1
secondary
#CBB091
accent
#984DDB
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0C0E14
muted
#7D7E83

Preview Lab

Preview with #3F7CC1

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

Preview Lab → · Contrast checker → · Palette generator →

#3F7CC1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva