#2544B2#2544B2

#2544B2 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.7% C 0.178 H 266.6°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#2544B2
RGB	rgb(37, 68, 178)
HSL	hsl(227, 66%, 42%)
HSV	hsv(227, 79%, 70%)
CMYK	cmyk(79.2%, 61.8%, 0%, 30.2%)
CIE-LAB	lab(33.44, 29.56, -61.54)
CIE-LCH	lch(33.44, 68.27, 295.66°)
OKLab	oklab(43.74% -0.0107 -0.178)
OKLCH	oklch(43.74% 0.178 266.6)
XYZ	xyz(10.8631, 7.7407, 43.0324)
Luminance	0.0774 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2544B2 #B29325

analogous

#258AB2 #2544B2 #4D25B2

triadic

#2544B2 #B22544 #44B225

tetradic

#2544B2 #B2258A #B29325 #25B24D

square

#2544B2 #B2258A #B29325 #25B24D

split-complementary

#2544B2 #B24D25 #8AB225

monochromatic

#101D4D #1A317F #2544B2 #3D5FD7 #7089E1

Accessibility & contrast

On white

8.24

#2544B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#2544B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2544B2

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2544B2	#FFFFFF	#000000	##FFFFFF
##2544B2	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#0048B0

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2544b2;
/* rgb */ color: rgb(37, 68, 178);
/* oklch */ color: oklch(43.7% 0.178 266.6);

Tailwind

colors: {
  custom: {
    50: '#7777ca',
    500: '#2544b2',
    950: '#000000',
  },
}

SCSS

$custom: #2544b2;
$custom-light: #7777ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2544b2",
  "rgb": {
    "r": 37,
    "g": 68,
    "b": 178
  },
  "hsl": {
    "h": 226.809,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.43744,
    "c": 0.17828,
    "h": 266.6
  },
  "luminance": 0.07742
}

Semantic roles & 50–950 ramp

primary

#2544B2

secondary

#C8B46B

accent

#C33FE9

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2544B2

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

Preview Lab → · Contrast checker → · Palette generator →