#2548A1#2548A1

#2548A1 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.1% C 0.150 H 264.6°. Best body text is #FFFFFF at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#2548A1
RGB	rgb(37, 72, 161)
HSL	hsl(223, 63%, 39%)
HSV	hsv(223, 77%, 63%)
CMYK	cmyk(77%, 55.3%, 0%, 36.9%)
CIE-LAB	lab(33.14, 20.34, -51.86)
CIE-LCH	lch(33.14, 55.71, 291.41°)
OKLab	oklab(43.09% -0.0141 -0.1495)
OKLCH	oklch(43.09% 0.15 264.6)
XYZ	xyz(9.5111, 7.6002, 34.6770)
Luminance	0.0760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2548A1 #A17E25

analogous

#2586A1 #2548A1 #4025A1

triadic

#2548A1 #A12548 #48A125

tetradic

#2548A1 #A12586 #A17E25 #25A140

square

#2548A1 #A12586 #A17E25 #25A140

split-complementary

#2548A1 #A14025 #86A125

monochromatic

#0E1B3D #1A326F #2548A1 #335FD0 #6586DC

Accessibility & contrast

On white

8.33

#2548A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#2548A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2548A1

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2548A1	#FFFFFF	#000000	##FFFFFF
##2548A1	1.00	8.33	2.52	8.33
#FFFFFF	8.33	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A4

Deuteranopia (green-blind)

#00489F

Tritanopia (blue-blind)

#005E6D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2548a1;
/* rgb */ color: rgb(37, 72, 161);
/* oklch */ color: oklch(43.1% 0.150 264.6);

Tailwind

colors: {
  custom: {
    50: '#737abd',
    500: '#2548a1',
    950: '#000000',
  },
}

SCSS

$custom: #2548a1;
$custom-light: #737abd;
$custom-dark: #000000;

JSON

{
  "hex": "#2548a1",
  "rgb": {
    "r": 37,
    "g": 72,
    "b": 161
  },
  "hsl": {
    "h": 223.065,
    "s": 62.626,
    "l": 38.824
  },
  "oklch": {
    "l": 0.43089,
    "c": 0.15016,
    "h": 264.6
  },
  "luminance": 0.07601
}

Semantic roles & 50–950 ramp

primary

#2548A1

secondary

#C1A661

accent

#B842E6

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #2548A1

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

Preview Lab → · Contrast checker → · Palette generator →