#2548A3#2548A3

#2548A3 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.3% C 0.153 H 264.8°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#2548A3
RGB	rgb(37, 72, 163)
HSL	hsl(223, 63%, 39%)
HSV	hsv(223, 77%, 64%)
CMYK	cmyk(77.3%, 55.8%, 0%, 36.1%)
CIE-LAB	lab(33.29, 21.12, -52.82)
CIE-LCH	lch(33.29, 56.88, 291.79°)
OKLab	oklab(43.25% -0.0139 -0.1523)
OKLCH	oklch(43.25% 0.153 264.8)
XYZ	xyz(9.6888, 7.6713, 35.6133)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2548A3 #A38025

analogous

#2587A3 #2548A3 #4125A3

triadic

#2548A3 #A32548 #48A325

tetradic

#2548A3 #A32587 #A38025 #25A341

square

#2548A3 #A32587 #A38025 #25A341

split-complementary

#2548A3 #A34125 #87A325

monochromatic

#0E1C3F #1A3271 #2548A3 #3460D1 #6687DC

Accessibility & contrast

On white

8.29

#2548A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2548A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2548A3

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2548A3	#FFFFFF	#000000	##FFFFFF
##2548A3	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A6

Deuteranopia (green-blind)

#0049A1

Tritanopia (blue-blind)

#005E6E

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2548a3;
/* rgb */ color: rgb(37, 72, 163);
/* oklch */ color: oklch(43.3% 0.153 264.8);

Tailwind

colors: {
  custom: {
    50: '#737abf',
    500: '#2548a3',
    950: '#000000',
  },
}

SCSS

$custom: #2548a3;
$custom-light: #737abf;
$custom-dark: #000000;

JSON

{
  "hex": "#2548a3",
  "rgb": {
    "r": 37,
    "g": 72,
    "b": 163
  },
  "hsl": {
    "h": 223.333,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.43253,
    "c": 0.15295,
    "h": 264.8
  },
  "luminance": 0.07672
}

Semantic roles & 50–950 ramp

primary

#2548A3

secondary

#C2A762

accent

#B842E6

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #2548A3

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

Preview Lab → · Contrast checker → · Palette generator →