#2748AB#2748AB

#2748AB is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.0% C 0.163 H 265.8°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#2748AB
RGB	rgb(39, 72, 171)
HSL	hsl(225, 63%, 41%)
HSV	hsv(225, 77%, 67%)
CMYK	cmyk(77.2%, 57.9%, 0%, 32.9%)
CIE-LAB	lab(33.99, 24.44, -56.46)
CIE-LCH	lch(33.99, 61.52, 293.41°)
OKLab	oklab(44% -0.0119 -0.163)
OKLCH	oklch(44% 0.163 265.8)
XYZ	xyz(10.5022, 8.0052, 39.5118)
Luminance	0.0801 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2748AB #AB8A27

analogous

#278AAB #2748AB #4827AB

triadic

#2748AB #AB2748 #48AB27

tetradic

#2748AB #AB278A #AB8A27 #27AB48

square

#2748AB #AB278A #AB8A27 #27AB48

split-complementary

#2748AB #AB4827 #8AAB27

monochromatic

#101E47 #1C3379 #2748AB #3D62D3 #6E8ADE

Accessibility & contrast

On white

8.07

#2748AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#2748AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2748AB

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2748AB	#FFFFFF	#000000	##FFFFFF
##2748AB	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AE

Deuteranopia (green-blind)

#004AA9

Tritanopia (blue-blind)

#006172

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2748ab;
/* rgb */ color: rgb(39, 72, 171);
/* oklch */ color: oklch(44.0% 0.163 265.8);

Tailwind

colors: {
  custom: {
    50: '#767ac5',
    500: '#2748ab',
    950: '#000000',
  },
}

SCSS

$custom: #2748ab;
$custom-light: #767ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#2748ab",
  "rgb": {
    "r": 39,
    "g": 72,
    "b": 171
  },
  "hsl": {
    "h": 225,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.44002,
    "c": 0.1634,
    "h": 265.8
  },
  "luminance": 0.08006
}

Semantic roles & 50–950 ramp

primary

#2748AB

secondary

#C5AE69

accent

#BD42E6

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2748AB

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

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