#2743BA#2743BA

#2743BA is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.4% C 0.189 H 267.4°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#2743BA
RGB	rgb(39, 67, 186)
HSL	hsl(229, 65%, 44%)
HSV	hsv(229, 79%, 73%)
CMYK	cmyk(79%, 64%, 0%, 27.1%)
CIE-LAB	lab(33.96, 33.40, -65.41)
CIE-LCH	lch(33.96, 73.44, 297.05°)
OKLab	oklab(44.37% -0.0086 -0.1893)
OKLCH	oklch(44.37% 0.189 267.4)
XYZ	xyz(11.7037, 7.9895, 47.3701)
Luminance	0.0799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2743BA #BA9E27

analogous

#278DBA #2743BA #5427BA

triadic

#2743BA #BA2743 #43BA27

tetradic

#2743BA #BA278D #BA9E27 #27BA54

square

#2743BA #BA278D #BA9E27 #27BA54

split-complementary

#2743BA #BA5427 #8DBA27

monochromatic

#121F55 #1C3187 #2743BA #4662D8 #798DE3

Accessibility & contrast

On white

8.08

#2743BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#2743BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2743BA

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2743BA	#FFFFFF	#000000	##FFFFFF
##2743BA	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BE

Deuteranopia (green-blind)

#0049B8

Tritanopia (blue-blind)

#006278

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2743ba;
/* rgb */ color: rgb(39, 67, 186);
/* oklch */ color: oklch(44.4% 0.189 267.4);

Tailwind

colors: {
  custom: {
    50: '#7a77d0',
    500: '#2743ba',
    950: '#000000',
  },
}

SCSS

$custom: #2743ba;
$custom-light: #7a77d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2743ba",
  "rgb": {
    "r": 39,
    "g": 67,
    "b": 186
  },
  "hsl": {
    "h": 228.571,
    "s": 65.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.44368,
    "c": 0.18947,
    "h": 267.4
  },
  "luminance": 0.07991
}

Semantic roles & 50–950 ramp

primary

#2743BA

secondary

#CBBA72

accent

#C840E8

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2743BA

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

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