#343CBF#343CBF

#343CBF is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.3% C 0.200 H 272.2°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX#343CBF
RGBrgb(52, 60, 191)
HSLhsl(237, 57%, 48%)
HSVhsv(237, 73%, 75%)
CMYKcmyk(72.8%, 68.6%, 0%, 25.1%)
CIE-LABlab(33.40, 40.89, -69.25)
CIE-LCHlch(33.40, 80.42, 300.56°)
OKLaboklab(44.27% 0.0076 -0.2003)
OKLCHoklch(44.27% 0.2 272.2)
XYZxyz(12.4328, 7.7221, 50.1154)
Luminance0.0772 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#343CBF #BFB734
analogous
#3481BF #343CBF #7234BF
triadic
#343CBF #BF343C #3CBF34
tetradic
#343CBF #BF3481 #BFB734 #34BF72
square
#343CBF #BF3481 #BFB734 #34BF72
split-complementary
#343CBF #BF7234 #81BF34
monochromatic
#1A1E5F #272D8F #343CBF #5D64D3 #8D92E0

Accessibility & contrast

On white

8.25
#343CBF on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.54
#343CBF on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343CBF
8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##343CBF#FFFFFF#000000##FFFFFF
##343CBF1.008.252.548.25
#FFFFFF8.251.0021.001.00
#0000002.5421.001.0021.00
##FFFFFF8.251.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0055C3
Deuteranopia (green-blind)
#0048BD
Tritanopia (blue-blind)
#006079
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #343cbf;
/* rgb */ color: rgb(52, 60, 191);
/* oklch */ color: oklch(44.3% 0.200 272.2);
Tailwind
colors: {
  custom: {
    50: '#8072d3',
    500: '#343cbf',
    950: '#000000',
  },
}
SCSS
$custom: #343cbf;
$custom-light: #8072d3;
$custom-dark: #000000;
JSON
{
  "hex": "#343cbf",
  "rgb": {
    "r": 52,
    "g": 60,
    "b": 191
  },
  "hsl": {
    "h": 236.547,
    "s": 57.202,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44268,
    "c": 0.20043,
    "h": 272.2
  },
  "luminance": 0.07723
}

Semantic roles & 50–950 ramp

primary
#343CBF
secondary
#CAC684
accent
#D847E0
background
#F8F6FD
surface
#F0ECFA
border
#CBC7D3
text
#0C0814
muted
#7D7B83

Preview Lab

Preview with #343CBF

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

Preview Lab → · Contrast checker → · Palette generator →

#343CBF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva