#2543C4#2543C4

#2543C4 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.2% C 0.203 H 267.0°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#2543C4
RGB	rgb(37, 67, 196)
HSL	hsl(229, 68%, 46%)
HSV	hsv(229, 81%, 77%)
CMYK	cmyk(81.1%, 65.8%, 0%, 23.1%)
CIE-LAB	lab(34.79, 36.92, -69.93)
CIE-LCH	lch(34.79, 79.07, 297.83°)
OKLab	oklab(45.23% -0.0106 -0.2025)
OKLCH	oklch(45.23% 0.203 267)
XYZ	xyz(12.7304, 8.3916, 53.1626)
Luminance	0.0839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.88

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2543C4 #C4A625

analogous

#2592C4 #2543C4 #5625C4

triadic

#2543C4 #C42543 #43C425

tetradic

#2543C4 #C42592 #C4A625 #25C456

square

#2543C4 #C42592 #C4A625 #25C456

split-complementary

#2543C4 #C45625 #92C425

monochromatic

#12205D #1B3191 #2543C4 #4965DD #7D91E6

Accessibility & contrast

On white

7.84

#2543C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#2543C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2543C4

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2543C4	#FFFFFF	#000000	##FFFFFF
##2543C4	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C8

Deuteranopia (green-blind)

#004AC2

Tritanopia (blue-blind)

#00667D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #2543c4;
/* rgb */ color: rgb(37, 67, 196);
/* oklch */ color: oklch(45.2% 0.203 267.0);

Tailwind

colors: {
  custom: {
    50: '#7c77d7',
    500: '#2543c4',
    950: '#000000',
  },
}

SCSS

$custom: #2543c4;
$custom-light: #7c77d7;
$custom-dark: #000000;

JSON

{
  "hex": "#2543c4",
  "rgb": {
    "r": 37,
    "g": 67,
    "b": 196
  },
  "hsl": {
    "h": 228.679,
    "s": 68.24,
    "l": 45.686
  },
  "oklch": {
    "l": 0.45228,
    "c": 0.20281,
    "h": 267
  },
  "luminance": 0.08393
}

Semantic roles & 50–950 ramp

primary

#2543C4

secondary

#CFBE76

accent

#CA3DEB

background

#F8F7FD

surface

#EFEDFA

border

#CAC8D3

text

#0B0815

muted

#7C7B83

Preview Lab

Preview with #2543C4

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

Preview Lab → · Contrast checker → · Palette generator →