#2543A3#2543A3

#2543A3 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.2% C 0.159 H 266.3°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#2543A3
RGB	rgb(37, 67, 163)
HSL	hsl(226, 63%, 39%)
HSV	hsv(226, 77%, 64%)
CMYK	cmyk(77.3%, 58.9%, 0%, 36.1%)
CIE-LAB	lab(31.92, 24.49, -55.04)
CIE-LCH	lch(31.92, 60.24, 293.98°)
OKLab	oklab(42.23% -0.0103 -0.1589)
OKLCH	oklch(42.23% 0.159 266.3)
XYZ	xyz(9.3786, 7.0509, 35.5099)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2543A3 #A38525

analogous

#2582A3 #2543A3 #4625A3

triadic

#2543A3 #A32543 #43A325

tetradic

#2543A3 #A32582 #A38525 #25A346

square

#2543A3 #A32582 #A38525 #25A346

split-complementary

#2543A3 #A34625 #82A325

monochromatic

#0E1A3F #1A2E71 #2543A3 #345AD1 #6682DC

Accessibility & contrast

On white

8.71

#2543A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2543A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2543A3

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2543A3	#FFFFFF	#000000	##FFFFFF
##2543A3	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A6

Deuteranopia (green-blind)

#0045A1

Tritanopia (blue-blind)

#005B6C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2543a3;
/* rgb */ color: rgb(37, 67, 163);
/* oklch */ color: oklch(42.2% 0.159 266.3);

Tailwind

colors: {
  custom: {
    50: '#7376bf',
    500: '#2543a3',
    950: '#000000',
  },
}

SCSS

$custom: #2543a3;
$custom-light: #7376bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2543a3",
  "rgb": {
    "r": 37,
    "g": 67,
    "b": 163
  },
  "hsl": {
    "h": 225.714,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.42226,
    "c": 0.15925,
    "h": 266.3
  },
  "luminance": 0.07052
}

Semantic roles & 50–950 ramp

primary

#2543A3

secondary

#C2AB62

accent

#BF42E6

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #2543A3

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

Preview Lab → · Contrast checker → · Palette generator →