#2743A4#2743A4

#2743A4 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.4% C 0.160 H 266.9°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX#2743A4
RGBrgb(39, 67, 164)
HSLhsl(227, 62%, 40%)
HSVhsv(227, 76%, 64%)
CMYKcmyk(76.2%, 59.1%, 0%, 35.7%)
CIE-LABlab(32.09, 25.10, -55.37)
CIE-LCHlch(32.09, 60.79, 294.39°)
OKLaboklab(42.4% -0.0085 -0.1598)
OKLCHoklch(42.4% 0.16 266.9)
XYZxyz(9.5424, 7.1249, 35.9871)
Luminance0.0713 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2743A4 #A48827
analogous
#2782A4 #2743A4 #4A27A4
triadic
#2743A4 #A42743 #43A427
tetradic
#2743A4 #A42782 #A48827 #27A44A
square
#2743A4 #A42782 #A48827 #27A44A
split-complementary
#2743A4 #A44A27 #82A427
monochromatic
#0F1B41 #1B2F73 #2743A4 #385AD0 #6A83DC

Accessibility & contrast

On white

8.66
#2743A4 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.43
#2743A4 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2743A4
8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2743A4#FFFFFF#000000##FFFFFF
##2743A41.008.662.438.66
#FFFFFF8.661.0021.001.00
#0000002.4321.001.0021.00
##FFFFFF8.661.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0051A7
Deuteranopia (green-blind)
#0046A2
Tritanopia (blue-blind)
#005B6D
Achromatopsia (no color)
#4B4B4B

Design tokens & code

CSS
--color: #2743a4;
/* rgb */ color: rgb(39, 67, 164);
/* oklch */ color: oklch(42.4% 0.160 266.9);
Tailwind
colors: {
  custom: {
    50: '#7476c0',
    500: '#2743a4',
    950: '#000000',
  },
}
SCSS
$custom: #2743a4;
$custom-light: #7476c0;
$custom-dark: #000000;
JSON
{
  "hex": "#2743a4",
  "rgb": {
    "r": 39,
    "g": 67,
    "b": 164
  },
  "hsl": {
    "h": 226.56,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.424,
    "c": 0.16007,
    "h": 266.9
  },
  "luminance": 0.07126
}

Semantic roles & 50–950 ramp

primary
#2743A4
secondary
#C2AD65
accent
#C043E5
background
#F7F7FB
surface
#EEEDF7
border
#C9C8D0
text
#0A0812
muted
#7C7B81

Preview Lab

Preview with #2743A4

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

Preview Lab → · Contrast checker → · Palette generator →

#2743A4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva