#2743B2#2743B2

#2743B2 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.6% C 0.179 H 267.3°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#2743B2
RGB	rgb(39, 67, 178)
HSL	hsl(228, 64%, 43%)
HSV	hsv(228, 78%, 70%)
CMYK	cmyk(78.1%, 62.4%, 0%, 30.2%)
CIE-LAB	lab(33.26, 30.41, -61.82)
CIE-LCH	lch(33.26, 68.89, 296.20°)
OKLab	oklab(43.64% -0.0084 -0.1788)
OKLCH	oklch(43.64% 0.179 267.3)
XYZ	xyz(10.8769, 7.6588, 43.0159)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2743B2 #B29627

analogous

#2788B2 #2743B2 #5127B2

triadic

#2743B2 #B22743 #43B227

tetradic

#2743B2 #B22788 #B29627 #27B251

square

#2743B2 #B22788 #B29627 #27B251

split-complementary

#2743B2 #B25127 #88B227

monochromatic

#111D4E #1C3080 #2743B2 #415FD5 #7389E0

Accessibility & contrast

On white

8.29

#2743B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2743B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2743B2

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2743B2	#FFFFFF	#000000	##FFFFFF
##2743B2	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#0048B0

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2743b2;
/* rgb */ color: rgb(39, 67, 178);
/* oklch */ color: oklch(43.6% 0.179 267.3);

Tailwind

colors: {
  custom: {
    50: '#7876ca',
    500: '#2743b2',
    950: '#000000',
  },
}

SCSS

$custom: #2743b2;
$custom-light: #7876ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2743b2",
  "rgb": {
    "r": 39,
    "g": 67,
    "b": 178
  },
  "hsl": {
    "h": 227.914,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.43636,
    "c": 0.17897,
    "h": 267.3
  },
  "luminance": 0.0766
}

Semantic roles & 50–950 ramp

primary

#2743B2

secondary

#C8B56D

accent

#C641E7

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2743B2

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

Preview Lab → · Contrast checker → · Palette generator →