#2548AA#2548AA

#2548AA is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.8% C 0.163 H 265.2°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#2548AA
RGB	rgb(37, 72, 170)
HSL	hsl(224, 64%, 41%)
HSV	hsv(224, 78%, 67%)
CMYK	cmyk(78.2%, 57.6%, 0%, 33.3%)
CIE-LAB	lab(33.83, 23.83, -56.12)
CIE-LCH	lch(33.83, 60.97, 293.01°)
OKLab	oklab(43.84% -0.0135 -0.162)
OKLCH	oklch(43.84% 0.163 265.2)
XYZ	xyz(10.3334, 7.9291, 39.0083)
Luminance	0.0793 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2548AA #AA8725

analogous

#258AAA #2548AA #4525AA

triadic

#2548AA #AA2548 #48AA25

tetradic

#2548AA #AA258A #AA8725 #25AA45

square

#2548AA #AA258A #AA8725 #25AA45

split-complementary

#2548AA #AA4525 #8AAA25

monochromatic

#0F1D45 #1A3378 #2548AA #3861D4 #6B89DF

Accessibility & contrast

On white

8.12

#2548AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#2548AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2548AA

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2548AA	#FFFFFF	#000000	##FFFFFF
##2548AA	1.00	8.12	2.59	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AD

Deuteranopia (green-blind)

#004AA8

Tritanopia (blue-blind)

#006072

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2548aa;
/* rgb */ color: rgb(37, 72, 170);
/* oklch */ color: oklch(43.8% 0.163 265.2);

Tailwind

colors: {
  custom: {
    50: '#757ac4',
    500: '#2548aa',
    950: '#000000',
  },
}

SCSS

$custom: #2548aa;
$custom-light: #757ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#2548aa",
  "rgb": {
    "r": 37,
    "g": 72,
    "b": 170
  },
  "hsl": {
    "h": 224.211,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.43836,
    "c": 0.16258,
    "h": 265.2
  },
  "luminance": 0.0793
}

Semantic roles & 50–950 ramp

primary

#2548AA

secondary

#C5AC66

accent

#BB41E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2548AA

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

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