#3F8BD5#3F8BD5

#3F8BD5 is a light, vivid cyan. Relative luminance 0.243; OKLCH L 62.3% C 0.135 H 250.4°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX#3F8BD5
RGBrgb(63, 139, 213)
HSLhsl(210, 64%, 54%)
HSVhsv(210, 70%, 84%)
CMYKcmyk(70.4%, 34.7%, 0%, 16.5%)
CIE-LABlab(56.41, 0.76, -44.76)
CIE-LCHlch(56.41, 44.77, 270.97°)
OKLaboklab(62.35% -0.0453 -0.1271)
OKLCHoklch(62.35% 0.135 250.4)
XYZxyz(23.2883, 24.3236, 66.4055)
Luminance0.2433 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F8BD5 #D5893F
analogous
#3FD5D4 #3F8BD5 #3F40D5
triadic
#3F8BD5 #D53F8B #8BD53F
tetradic
#3F8BD5 #D43FD5 #D5893F #40D53F
square
#3F8BD5 #D43FD5 #D5893F #40D53F
split-complementary
#3F8BD5 #D53F40 #D5D43F
monochromatic
#1C4D7E #276CB0 #3F8BD5 #71A9E0 #A3C8EB

Accessibility & contrast

On white

3.58
#3F8BD5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.87
#3F8BD5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BD5
5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F8BD5#FFFFFF#000000##000000
##3F8BD51.003.585.875.87
#FFFFFF3.581.0021.0021.00
#0000005.8721.001.001.00
##0000005.8721.001.001.00

Color blindness preview

Protanopia (red-blind)
#6A8FD8
Deuteranopia (green-blind)
#5481D4
Tritanopia (blue-blind)
#009CA6
Achromatopsia (no color)
#878787

Design tokens & code

CSS
--color: #3f8bd5;
/* rgb */ color: rgb(63, 139, 213);
/* oklch */ color: oklch(62.3% 0.135 250.4);
Tailwind
colors: {
  custom: {
    50: '#85ace2',
    500: '#3f8bd5',
    950: '#000000',
  },
}
SCSS
$custom: #3f8bd5;
$custom-light: #85ace2;
$custom-dark: #000000;
JSON
{
  "hex": "#3f8bd5",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 213
  },
  "hsl": {
    "h": 209.6,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.62349,
    "c": 0.13497,
    "h": 250.4
  },
  "luminance": 0.24326
}

Semantic roles & 50–950 ramp

primary
#3F8BD5
secondary
#D8B798
accent
#9341E7
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3F8BD5

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

Preview Lab → · Contrast checker → · Palette generator →

#3F8BD5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva