#2548AD#2548AD

#2548AD is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.1% C 0.167 H 265.4°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#2548AD
RGB	rgb(37, 72, 173)
HSL	hsl(225, 65%, 41%)
HSV	hsv(225, 79%, 68%)
CMYK	cmyk(78.6%, 58.4%, 0%, 32.2%)
CIE-LAB	lab(34.07, 24.99, -57.52)
CIE-LCH	lch(34.07, 62.72, 293.48°)
OKLab	oklab(44.09% -0.0134 -0.1661)
OKLCH	oklch(44.09% 0.167 265.4)
XYZ	xyz(10.6205, 8.0440, 40.5200)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2548AD #AD8A25

analogous

#258CAD #2548AD #4625AD

triadic

#2548AD #AD2548 #48AD25

tetradic

#2548AD #AD258C #AD8A25 #25AD46

square

#2548AD #AD258C #AD8A25 #25AD46

split-complementary

#2548AD #AD4625 #8CAD25

monochromatic

#0F1E48 #1A337B #2548AD #3A62D5 #6D8AE0

Accessibility & contrast

On white

8.05

#2548AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#2548AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2548AD

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2548AD	#FFFFFF	#000000	##FFFFFF
##2548AD	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B0

Deuteranopia (green-blind)

#004AAB

Tritanopia (blue-blind)

#006173

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2548ad;
/* rgb */ color: rgb(37, 72, 173);
/* oklch */ color: oklch(44.1% 0.167 265.4);

Tailwind

colors: {
  custom: {
    50: '#757ac6',
    500: '#2548ad',
    950: '#000000',
  },
}

SCSS

$custom: #2548ad;
$custom-light: #757ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#2548ad",
  "rgb": {
    "r": 37,
    "g": 72,
    "b": 173
  },
  "hsl": {
    "h": 224.559,
    "s": 64.762,
    "l": 41.176
  },
  "oklch": {
    "l": 0.4409,
    "c": 0.16667,
    "h": 265.4
  },
  "luminance": 0.08045
}

Semantic roles & 50–950 ramp

primary

#2548AD

secondary

#C6AE68

accent

#BD40E8

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2548AD

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

Preview Lab → · Contrast checker → · Palette generator →