#2743AB#2743AB

#2743AB is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.0% C 0.170 H 267.2°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#2743AB
RGB	rgb(39, 67, 171)
HSL	hsl(227, 63%, 41%)
HSV	hsv(227, 77%, 67%)
CMYK	cmyk(77.2%, 60.8%, 0%, 32.9%)
CIE-LAB	lab(32.67, 27.77, -58.62)
CIE-LCH	lch(32.67, 64.87, 295.35°)
OKLab	oklab(43.01% -0.0084 -0.1694)
OKLCH	oklch(43.01% 0.17 267.2)
XYZ	xyz(10.1920, 7.3848, 39.4084)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2743AB #AB8F27

analogous

#2785AB #2743AB #4D27AB

triadic

#2743AB #AB2743 #43AB27

tetradic

#2743AB #AB2785 #AB8F27 #27AB4D

square

#2743AB #AB2785 #AB8F27 #27AB4D

split-complementary

#2743AB #AB4D27 #85AB27

monochromatic

#101C47 #1C2F79 #2743AB #3D5CD3 #6E86DE

Accessibility & contrast

On white

8.48

#2743AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#2743AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2743AB

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2743AB	#FFFFFF	#000000	##FFFFFF
##2743AB	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AE

Deuteranopia (green-blind)

#0047A9

Tritanopia (blue-blind)

#005E70

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2743ab;
/* rgb */ color: rgb(39, 67, 171);
/* oklch */ color: oklch(43.0% 0.170 267.2);

Tailwind

colors: {
  custom: {
    50: '#7676c5',
    500: '#2743ab',
    950: '#000000',
  },
}

SCSS

$custom: #2743ab;
$custom-light: #7676c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2743ab",
  "rgb": {
    "r": 39,
    "g": 67,
    "b": 171
  },
  "hsl": {
    "h": 227.273,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.43011,
    "c": 0.1696,
    "h": 267.2
  },
  "luminance": 0.07386
}

Semantic roles & 50–950 ramp

primary

#2743AB

secondary

#C5B169

accent

#C342E6

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2743AB

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

Preview Lab → · Contrast checker → · Palette generator →