#2543AA#2543AA

#2543AA is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.8% C 0.169 H 266.6°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#2543AA
RGB	rgb(37, 67, 170)
HSL	hsl(226, 64%, 41%)
HSV	hsv(226, 78%, 67%)
CMYK	cmyk(78.2%, 60.6%, 0%, 33.3%)
CIE-LAB	lab(32.50, 27.18, -58.30)
CIE-LCH	lch(32.50, 64.32, 294.99°)
OKLab	oklab(42.84% -0.0101 -0.1685)
OKLCH	oklch(42.84% 0.169 266.6)
XYZ	xyz(10.0233, 7.3088, 38.9049)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2543AA #AA8C25

analogous

#2585AA #2543AA #4925AA

triadic

#2543AA #AA2543 #43AA25

tetradic

#2543AA #AA2585 #AA8C25 #25AA49

square

#2543AA #AA2585 #AA8C25 #25AA49

split-complementary

#2543AA #AA4925 #85AA25

monochromatic

#0F1B45 #1A2F78 #2543AA #385BD4 #6B85DF

Accessibility & contrast

On white

8.53

#2543AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#2543AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2543AA

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2543AA	#FFFFFF	#000000	##FFFFFF
##2543AA	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AD

Deuteranopia (green-blind)

#0046A8

Tritanopia (blue-blind)

#005D70

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2543aa;
/* rgb */ color: rgb(37, 67, 170);
/* oklch */ color: oklch(42.8% 0.169 266.6);

Tailwind

colors: {
  custom: {
    50: '#7576c4',
    500: '#2543aa',
    950: '#000000',
  },
}

SCSS

$custom: #2543aa;
$custom-light: #7576c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2543aa",
  "rgb": {
    "r": 37,
    "g": 67,
    "b": 170
  },
  "hsl": {
    "h": 226.466,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.42837,
    "c": 0.16879,
    "h": 266.6
  },
  "luminance": 0.0731
}

Semantic roles & 50–950 ramp

primary

#2543AA

secondary

#C5AF66

accent

#C241E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2543AA

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

Preview Lab → · Contrast checker → · Palette generator →