#2544BC#2544BC

#2544BC is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.7% C 0.191 H 266.8°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#2544BC
RGB	rgb(37, 68, 188)
HSL	hsl(228, 67%, 44%)
HSV	hsv(228, 80%, 74%)
CMYK	cmyk(80.3%, 63.8%, 0%, 26.3%)
CIE-LAB	lab(34.31, 33.32, -66.02)
CIE-LCH	lch(34.31, 73.95, 296.78°)
OKLab	oklab(44.66% -0.0108 -0.1911)
OKLCH	oklch(44.66% 0.191 266.8)
XYZ	xyz(11.9040, 8.1570, 48.5143)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2544BC #BC9D25

analogous

#2590BC #2544BC #5225BC

triadic

#2544BC #BC2544 #44BC25

tetradic

#2544BC #BC2590 #BC9D25 #25BC52

square

#2544BC #BC2590 #BC9D25 #25BC52

split-complementary

#2544BC #BC5225 #90BC25

monochromatic

#111F56 #1B3289 #2544BC #4463DA #778EE4

Accessibility & contrast

On white

7.98

#2544BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#2544BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2544BC

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2544BC	#FFFFFF	#000000	##FFFFFF
##2544BC	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C0

Deuteranopia (green-blind)

#004ABA

Tritanopia (blue-blind)

#006479

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2544bc;
/* rgb */ color: rgb(37, 68, 188);
/* oklch */ color: oklch(44.7% 0.191 266.8);

Tailwind

colors: {
  custom: {
    50: '#7a77d1',
    500: '#2544bc',
    950: '#000000',
  },
}

SCSS

$custom: #2544bc;
$custom-light: #7a77d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2544bc",
  "rgb": {
    "r": 37,
    "g": 68,
    "b": 188
  },
  "hsl": {
    "h": 227.682,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.44656,
    "c": 0.1914,
    "h": 266.8
  },
  "luminance": 0.08158
}

Semantic roles & 50–950 ramp

primary

#2544BC

secondary

#CCB971

accent

#C73EEA

background

#F8F7FD

surface

#EFEDFA

border

#CAC8D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #2544BC

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

Preview Lab → · Contrast checker → · Palette generator →