#3743C0#3743C0

#3743C0 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.193 H 271.9°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX#3743C0
RGBrgb(55, 67, 192)
HSLhsl(235, 55%, 48%)
HSVhsv(235, 71%, 75%)
CMYKcmyk(71.4%, 65.1%, 0%, 24.7%)
CIE-LABlab(35.26, 37.27, -66.77)
CIE-LCHlch(35.26, 76.47, 299.17°)
OKLaboklab(45.7% 0.0064 -0.1929)
OKLCHoklch(45.7% 0.193 271.9)
XYZxyz(13.0939, 8.6310, 50.8348)
Luminance0.0863 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3743C0 #C0B437
analogous
#3787C0 #3743C0 #7037C0
triadic
#3743C0 #C03743 #43C037
tetradic
#3743C0 #C03787 #C0B437 #37C070
square
#3743C0 #C03787 #C0B437 #37C070
split-complementary
#3743C0 #C07037 #87C037
monochromatic
#1C2261 #293290 #3743C0 #626CD2 #9299E0

Accessibility & contrast

On white

7.70
#3743C0 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.73
#3743C0 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3743C0
7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3743C0#FFFFFF#000000##FFFFFF
##3743C01.007.702.737.70
#FFFFFF7.701.0021.001.00
#0000002.7321.001.0021.00
##FFFFFF7.701.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0059C4
Deuteranopia (green-blind)
#004DBE
Tritanopia (blue-blind)
#00647B
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #3743c0;
/* rgb */ color: rgb(55, 67, 192);
/* oklch */ color: oklch(45.7% 0.193 271.9);
Tailwind
colors: {
  custom: {
    50: '#8177d4',
    500: '#3743c0',
    950: '#000000',
  },
}
SCSS
$custom: #3743c0;
$custom-light: #8177d4;
$custom-dark: #000000;
JSON
{
  "hex": "#3743c0",
  "rgb": {
    "r": 55,
    "g": 67,
    "b": 192
  },
  "hsl": {
    "h": 234.745,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.45698,
    "c": 0.19304,
    "h": 271.9
  },
  "luminance": 0.08632
}

Semantic roles & 50–950 ramp

primary
#3743C0
secondary
#CBC588
accent
#D249DF
background
#F8F7FD
surface
#F0EDFA
border
#CBC8D3
text
#0C0814
muted
#7D7B83

Preview Lab

Preview with #3743C0

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

Preview Lab → · Contrast checker → · Palette generator →

#3743C0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva