#2745B4#2745B4

#2745B4 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.2% C 0.179 H 266.9°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#2745B4
RGB	rgb(39, 69, 180)
HSL	hsl(227, 64%, 43%)
HSV	hsv(227, 78%, 71%)
CMYK	cmyk(78.3%, 61.7%, 0%, 29.4%)
CIE-LAB	lab(33.94, 29.85, -61.89)
CIE-LCH	lch(33.94, 68.71, 295.75°)
OKLab	oklab(44.2% -0.0097 -0.1789)
OKLCH	oklch(44.2% 0.179 266.9)
XYZ	xyz(11.2002, 7.9816, 44.1215)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2745B4 #B49627

analogous

#278BB4 #2745B4 #4F27B4

triadic

#2745B4 #B42745 #45B427

tetradic

#2745B4 #B4278B #B49627 #27B44F

square

#2745B4 #B4278B #B49627 #27B44F

split-complementary

#2745B4 #B44F27 #8BB427

monochromatic

#111E4F #1C3282 #2745B4 #4262D6 #748CE1

Accessibility & contrast

On white

8.09

#2745B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#2745B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2745B4

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2745B4	#FFFFFF	#000000	##FFFFFF
##2745B4	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B8

Deuteranopia (green-blind)

#0049B2

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2745b4;
/* rgb */ color: rgb(39, 69, 180);
/* oklch */ color: oklch(44.2% 0.179 266.9);

Tailwind

colors: {
  custom: {
    50: '#7878cb',
    500: '#2745b4',
    950: '#000000',
  },
}

SCSS

$custom: #2745b4;
$custom-light: #7878cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2745b4",
  "rgb": {
    "r": 39,
    "g": 69,
    "b": 180
  },
  "hsl": {
    "h": 227.234,
    "s": 64.384,
    "l": 42.941
  },
  "oklch": {
    "l": 0.44195,
    "c": 0.17921,
    "h": 266.9
  },
  "luminance": 0.07983
}

Semantic roles & 50–950 ramp

primary

#2745B4

secondary

#C8B56F

accent

#C440E7

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2745B4

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

Preview Lab → · Contrast checker → · Palette generator →