#2548A8#2548A8

#2548A8 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.7% C 0.160 H 265.1°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#2548A8
RGB	rgb(37, 72, 168)
HSL	hsl(224, 64%, 40%)
HSV	hsv(224, 78%, 66%)
CMYK	cmyk(78%, 57.1%, 0%, 34.1%)
CIE-LAB	lab(33.68, 23.06, -55.19)
CIE-LCH	lch(33.68, 59.81, 292.68°)
OKLab	oklab(43.67% -0.0136 -0.1593)
OKLCH	oklch(43.67% 0.16 265.1)
XYZ	xyz(10.1457, 7.8540, 38.0195)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2548A8 #A88525

analogous

#258AA8 #2548A8 #4325A8

triadic

#2548A8 #A82548 #48A825

tetradic

#2548A8 #A8258A #A88525 #25A843

square

#2548A8 #A8258A #A88525 #25A843

split-complementary

#2548A8 #A84325 #8AA825

monochromatic

#0F1D44 #1A3376 #2548A8 #3761D3 #6989DE

Accessibility & contrast

On white

8.17

#2548A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#2548A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2548A8

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2548A8	#FFFFFF	#000000	##FFFFFF
##2548A8	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AB

Deuteranopia (green-blind)

#0049A6

Tritanopia (blue-blind)

#006071

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2548a8;
/* rgb */ color: rgb(37, 72, 168);
/* oklch */ color: oklch(43.7% 0.160 265.1);

Tailwind

colors: {
  custom: {
    50: '#747ac3',
    500: '#2548a8',
    950: '#000000',
  },
}

SCSS

$custom: #2548a8;
$custom-light: #747ac3;
$custom-dark: #000000;

JSON

{
  "hex": "#2548a8",
  "rgb": {
    "r": 37,
    "g": 72,
    "b": 168
  },
  "hsl": {
    "h": 223.969,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.43668,
    "c": 0.15985,
    "h": 265.1
  },
  "luminance": 0.07855
}

Semantic roles & 50–950 ramp

primary

#2548A8

secondary

#C4AB65

accent

#BB41E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #2548A8

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

Preview Lab → · Contrast checker → · Palette generator →