#3B81D8#3B81D8

#3B81D8 is a mid, vivid cyan. Relative luminance 0.216; OKLCH L 60.2% C 0.150 H 255.4°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX#3B81D8
RGBrgb(59, 129, 216)
HSLhsl(213, 67%, 54%)
HSVhsv(213, 73%, 85%)
CMYKcmyk(72.7%, 40.3%, 0%, 15.3%)
CIE-LABlab(53.58, 7.27, -50.94)
CIE-LCHlch(53.58, 51.46, 278.12°)
OKLaboklab(60.16% -0.0379 -0.1454)
OKLCHoklch(60.16% 0.15 255.4)
XYZxyz(22.0440, 21.5857, 67.9571)
Luminance0.2159 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3B81D8 #D8923B
analogous
#3BD0D8 #3B81D8 #443BD8
triadic
#3B81D8 #D83B81 #81D83B
tetradic
#3B81D8 #D83BD0 #D8923B #3BD844
square
#3B81D8 #D83BD0 #D8923B #3BD844
split-complementary
#3B81D8 #D8443B #D0D83B
monochromatic
#19477F #2363B2 #3B81D8 #6EA2E2 #A1C3EC

Accessibility & contrast

On white

3.95
#3B81D8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.32
#3B81D8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B81D8
5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3B81D8#FFFFFF#000000##000000
##3B81D81.003.955.325.32
#FFFFFF3.951.0021.0021.00
#0000005.3221.001.001.00
##0000005.3221.001.001.00

Color blindness preview

Protanopia (red-blind)
#5888DB
Deuteranopia (green-blind)
#3E79D6
Tritanopia (blue-blind)
#0095A2
Achromatopsia (no color)
#808080

Design tokens & code

CSS
--color: #3b81d8;
/* rgb */ color: rgb(59, 129, 216);
/* oklch */ color: oklch(60.2% 0.150 255.4);
Tailwind
colors: {
  custom: {
    50: '#84a5e4',
    500: '#3b81d8',
    950: '#000000',
  },
}
SCSS
$custom: #3b81d8;
$custom-light: #84a5e4;
$custom-dark: #000000;
JSON
{
  "hex": "#3b81d8",
  "rgb": {
    "r": 59,
    "g": 129,
    "b": 216
  },
  "hsl": {
    "h": 213.248,
    "s": 66.809,
    "l": 53.922
  },
  "oklch": {
    "l": 0.60157,
    "c": 0.15031,
    "h": 255.4
  },
  "luminance": 0.21588
}

Semantic roles & 50–950 ramp

primary
#3B81D8
secondary
#D9BB96
accent
#9D3EEA
background
#F8FAFE
surface
#F0F4FC
border
#CBCED5
text
#0C0F16
muted
#7D7F84

Preview Lab

Preview with #3B81D8

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

Preview Lab → · Contrast checker → · Palette generator →

#3B81D8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva