#3B5BD3#3B5BD3

#3B5BD3 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.9% C 0.188 H 267.9°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX#3B5BD3
RGBrgb(59, 91, 211)
HSLhsl(227, 63%, 53%)
HSVhsv(227, 72%, 83%)
CMYKcmyk(72%, 56.9%, 0%, 17.3%)
CIE-LABlab(42.93, 29.33, -65.25)
CIE-LCHlch(42.93, 71.54, 294.20°)
OKLaboklab(51.91% -0.007 -0.1882)
OKLCHoklch(51.91% 0.188 267.9)
XYZxyz(17.2985, 13.1133, 63.2348)
Luminance0.1311 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3B5BD3 #D3B33B
analogous
#3BA7D3 #3B5BD3 #673BD3
triadic
#3B5BD3 #D33B5B #5BD33B
tetradic
#3B5BD3 #D33BA7 #D3B33B #3BD367
square
#3B5BD3 #D33BA7 #D3B33B #3BD367
split-complementary
#3B5BD3 #D3673B #A7D33B
monochromatic
#1B2F79 #2642AB #3B5BD3 #6D85DE #9FAFE9

Accessibility & contrast

On white

5.80
#3B5BD3 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.62
#3B5BD3 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B5BD3
5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3B5BD3#FFFFFF#000000##FFFFFF
##3B5BD31.005.803.625.80
#FFFFFF5.801.0021.001.00
#0000003.6221.001.0021.00
##FFFFFF5.801.0021.001.00

Color blindness preview

Protanopia (red-blind)
#006DD7
Deuteranopia (green-blind)
#005FD1
Tritanopia (blue-blind)
#00798E
Achromatopsia (no color)
#656565

Design tokens & code

CSS
--color: #3b5bd3;
/* rgb */ color: rgb(59, 91, 211);
/* oklch */ color: oklch(51.9% 0.188 267.9);
Tailwind
colors: {
  custom: {
    50: '#8589e1',
    500: '#3b5bd3',
    950: '#000000',
  },
}
SCSS
$custom: #3b5bd3;
$custom-light: #8589e1;
$custom-dark: #000000;
JSON
{
  "hex": "#3b5bd3",
  "rgb": {
    "r": 59,
    "g": 91,
    "b": 211
  },
  "hsl": {
    "h": 227.368,
    "s": 63.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.51909,
    "c": 0.18829,
    "h": 267.9
  },
  "luminance": 0.13115
}

Semantic roles & 50–950 ramp

primary
#3B5BD3
secondary
#D6C894
accent
#C441E6
background
#F8F8FD
surface
#F0EFFB
border
#CBCAD4
text
#0C0B15
muted
#7D7C83

Preview Lab

Preview with #3B5BD3

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

Preview Lab → · Contrast checker → · Palette generator →

#3B5BD3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva