#2748B2#2748B2

#2748B2 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.6% C 0.173 H 266.1°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#2748B2
RGB	rgb(39, 72, 178)
HSL	hsl(226, 64%, 43%)
HSV	hsv(226, 78%, 70%)
CMYK	cmyk(78.1%, 59.6%, 0%, 30.2%)
CIE-LAB	lab(34.56, 27.12, -59.70)
CIE-LCH	lch(34.56, 65.57, 294.43°)
OKLab	oklab(44.6% -0.0116 -0.1725)
OKLCH	oklch(44.6% 0.173 266.1)
XYZ	xyz(11.1871, 8.2791, 43.1193)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2748B2 #B29127

analogous

#278EB2 #2748B2 #4B27B2

triadic

#2748B2 #B22748 #48B227

tetradic

#2748B2 #B2278E #B29127 #27B24B

square

#2748B2 #B2278E #B29127 #27B24B

split-complementary

#2748B2 #B24B27 #8EB227

monochromatic

#111F4E #1C3480 #2748B2 #4164D5 #738DE0

Accessibility & contrast

On white

7.91

#2748B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#2748B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2748B2

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2748B2	#FFFFFF	#000000	##FFFFFF
##2748B2	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B6

Deuteranopia (green-blind)

#004BB0

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2748b2;
/* rgb */ color: rgb(39, 72, 178);
/* oklch */ color: oklch(44.6% 0.173 266.1);

Tailwind

colors: {
  custom: {
    50: '#777aca',
    500: '#2748b2',
    950: '#000000',
  },
}

SCSS

$custom: #2748b2;
$custom-light: #777aca;
$custom-dark: #000000;

JSON

{
  "hex": "#2748b2",
  "rgb": {
    "r": 39,
    "g": 72,
    "b": 178
  },
  "hsl": {
    "h": 225.755,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.446,
    "c": 0.17289,
    "h": 266.1
  },
  "luminance": 0.0828
}

Semantic roles & 50–950 ramp

primary

#2748B2

secondary

#C8B26D

accent

#C041E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2748B2

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

Preview Lab → · Contrast checker → · Palette generator →