#2548AB#2548AB

#2548AB is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.9% C 0.164 H 265.3°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#2548AB
RGB	rgb(37, 72, 171)
HSL	hsl(224, 64%, 41%)
HSV	hsv(224, 78%, 67%)
CMYK	cmyk(78.4%, 57.9%, 0%, 32.9%)
CIE-LAB	lab(33.91, 24.22, -56.59)
CIE-LCH	lch(33.91, 61.56, 293.17°)
OKLab	oklab(43.92% -0.0135 -0.1634)
OKLCH	oklch(43.92% 0.164 265.3)
XYZ	xyz(10.4284, 7.9671, 39.5084)
Luminance	0.0797 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2548AB #AB8825

analogous

#258BAB #2548AB #4525AB

triadic

#2548AB #AB2548 #48AB25

tetradic

#2548AB #AB258B #AB8825 #25AB45

square

#2548AB #AB258B #AB8825 #25AB45

split-complementary

#2548AB #AB4525 #8BAB25

monochromatic

#0F1E46 #1A3379 #2548AB #3962D4 #6B8ADF

Accessibility & contrast

On white

8.10

#2548AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#2548AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2548AB

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2548AB	#FFFFFF	#000000	##FFFFFF
##2548AB	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	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: #2548ab;
/* rgb */ color: rgb(37, 72, 171);
/* oklch */ color: oklch(43.9% 0.164 265.3);

Tailwind

colors: {
  custom: {
    50: '#757ac5',
    500: '#2548ab',
    950: '#000000',
  },
}

SCSS

$custom: #2548ab;
$custom-light: #757ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#2548ab",
  "rgb": {
    "r": 37,
    "g": 72,
    "b": 171
  },
  "hsl": {
    "h": 224.328,
    "s": 64.423,
    "l": 40.784
  },
  "oklch": {
    "l": 0.4392,
    "c": 0.16395,
    "h": 265.3
  },
  "luminance": 0.07968
}

Semantic roles & 50–950 ramp

primary

#2548AB

secondary

#C5AD67

accent

#BC40E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2548AB

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

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