#3357B5#3357B5

#3357B5 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.4% C 0.155 H 265.2°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX#3357B5
RGBrgb(51, 87, 181)
HSLhsl(223, 56%, 45%)
HSVhsv(223, 72%, 71%)
CMYKcmyk(71.8%, 51.9%, 0%, 29%)
CIE-LABlab(39.34, 19.83, -53.69)
CIE-LCHlch(39.34, 57.24, 290.27°)
OKLaboklab(48.41% -0.0128 -0.1544)
OKLCHoklch(48.41% 0.155 265.2)
XYZxyz(13.1110, 10.8550, 45.1114)
Luminance0.1086 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3357B5 #B59133
analogous
#3398B5 #3357B5 #5033B5
triadic
#3357B5 #B53357 #57B533
tetradic
#3357B5 #B53398 #B59133 #33B550
square
#3357B5 #B53398 #B59133 #33B550
split-complementary
#3357B5 #B55033 #98B533
monochromatic
#182956 #264085 #3357B5 #5677CF #869EDD

Accessibility & contrast

On white

6.62
#3357B5 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.17
#3357B5 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357B5
6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3357B5#FFFFFF#000000##FFFFFF
##3357B51.006.623.176.62
#FFFFFF6.621.0021.001.00
#0000003.1721.001.0021.00
##FFFFFF6.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#1B63B8
Deuteranopia (green-blind)
#0057B3
Tritanopia (blue-blind)
#006D7D
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #3357b5;
/* rgb */ color: rgb(51, 87, 181);
/* oklch */ color: oklch(48.4% 0.155 265.2);
Tailwind
colors: {
  custom: {
    50: '#7b85cc',
    500: '#3357b5',
    950: '#000000',
  },
}
SCSS
$custom: #3357b5;
$custom-light: #7b85cc;
$custom-dark: #000000;
JSON
{
  "hex": "#3357b5",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 181
  },
  "hsl": {
    "h": 223.385,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4841,
    "c": 0.1549,
    "h": 265.2
  },
  "luminance": 0.10856
}

Semantic roles & 50–950 ramp

primary
#3357B5
secondary
#C6B27D
accent
#B648DF
background
#F8F8FC
surface
#EFEFF9
border
#CACAD2
text
#0B0B13
muted
#7C7C82

Preview Lab

Preview with #3357B5

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

Preview Lab → · Contrast checker → · Palette generator →

#3357B5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva