#2543BA#2543BA

#2543BA is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.3% C 0.190 H 266.9°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#2543BA
RGB	rgb(37, 67, 186)
HSL	hsl(228, 67%, 44%)
HSV	hsv(228, 80%, 73%)
CMYK	cmyk(80.1%, 64%, 0%, 27.1%)
CIE-LAB	lab(33.88, 33.22, -65.54)
CIE-LCH	lch(33.88, 73.48, 296.88°)
OKLab	oklab(44.29% -0.0102 -0.1897)
OKLCH	oklch(44.29% 0.19 266.9)
XYZ	xyz(11.6299, 7.9514, 47.3667)
Luminance	0.0795 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2543BA #BA9C25

analogous

#258DBA #2543BA #5125BA

triadic

#2543BA #BA2543 #43BA25

tetradic

#2543BA #BA258D #BA9C25 #25BA51

square

#2543BA #BA258D #BA9C25 #25BA51

split-complementary

#2543BA #BA5125 #8DBA25

monochromatic

#111E54 #1B3187 #2543BA #4361DA #768CE4

Accessibility & contrast

On white

8.11

#2543BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#2543BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2543BA

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2543BA	#FFFFFF	#000000	##FFFFFF
##2543BA	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BE

Deuteranopia (green-blind)

#0049B8

Tritanopia (blue-blind)

#006278

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2543ba;
/* rgb */ color: rgb(37, 67, 186);
/* oklch */ color: oklch(44.3% 0.190 266.9);

Tailwind

colors: {
  custom: {
    50: '#7977d0',
    500: '#2543ba',
    950: '#000000',
  },
}

SCSS

$custom: #2543ba;
$custom-light: #7977d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2543ba",
  "rgb": {
    "r": 37,
    "g": 67,
    "b": 186
  },
  "hsl": {
    "h": 227.919,
    "s": 66.816,
    "l": 43.725
  },
  "oklch": {
    "l": 0.44288,
    "c": 0.18998,
    "h": 266.9
  },
  "luminance": 0.07953
}

Semantic roles & 50–950 ramp

primary

#2543BA

secondary

#CBB970

accent

#C73EEA

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2543BA

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

Preview Lab → · Contrast checker → · Palette generator →