#2748B0#2748B0

#2748B0 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.4% C 0.170 H 266.1°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#2748B0
RGB	rgb(39, 72, 176)
HSL	hsl(226, 64%, 42%)
HSV	hsv(226, 78%, 69%)
CMYK	cmyk(77.8%, 59.1%, 0%, 31%)
CIE-LAB	lab(34.39, 26.35, -58.78)
CIE-LCH	lch(34.39, 64.42, 294.15°)
OKLab	oklab(44.43% -0.0117 -0.1698)
OKLCH	oklch(44.43% 0.17 266.1)
XYZ	xyz(10.9878, 8.1994, 42.0694)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2748B0 #B08F27

analogous

#278DB0 #2748B0 #4A27B0

triadic

#2748B0 #B02748 #48B027

tetradic

#2748B0 #B0278D #B08F27 #27B04A

square

#2748B0 #B0278D #B08F27 #27B04A

split-complementary

#2748B0 #B04A27 #8DB027

monochromatic

#111F4C #1C347E #2748B0 #4063D5 #728CE0

Accessibility & contrast

On white

7.95

#2748B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#2748B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2748B0

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2748B0	#FFFFFF	#000000	##FFFFFF
##2748B0	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B3

Deuteranopia (green-blind)

#004BAE

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2748b0;
/* rgb */ color: rgb(39, 72, 176);
/* oklch */ color: oklch(44.4% 0.170 266.1);

Tailwind

colors: {
  custom: {
    50: '#777ac8',
    500: '#2748b0',
    950: '#000000',
  },
}

SCSS

$custom: #2748b0;
$custom-light: #777ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#2748b0",
  "rgb": {
    "r": 39,
    "g": 72,
    "b": 176
  },
  "hsl": {
    "h": 225.547,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.44428,
    "c": 0.17019,
    "h": 266.1
  },
  "luminance": 0.08201
}

Semantic roles & 50–950 ramp

primary

#2748B0

secondary

#C7B16C

accent

#BF41E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2748B0

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

Preview Lab → · Contrast checker → · Palette generator →