#2543A7#2543A7

#2543A7 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.6% C 0.165 H 266.5°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#2543A7
RGB	rgb(37, 67, 167)
HSL	hsl(226, 64%, 40%)
HSV	hsv(226, 78%, 65%)
CMYK	cmyk(77.8%, 59.9%, 0%, 34.5%)
CIE-LAB	lab(32.25, 26.03, -56.91)
CIE-LCH	lch(32.25, 62.58, 294.58°)
OKLab	oklab(42.57% -0.0102 -0.1644)
OKLCH	oklch(42.57% 0.165 266.5)
XYZ	xyz(9.7427, 7.1965, 37.4273)
Luminance	0.0720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2543A7 #A78925

analogous

#2584A7 #2543A7 #4825A7

triadic

#2543A7 #A72543 #43A725

tetradic

#2543A7 #A72584 #A78925 #25A748

square

#2543A7 #A72584 #A78925 #25A748

split-complementary

#2543A7 #A74825 #84A725

monochromatic

#0F1B43 #1A2F75 #2543A7 #375BD3 #6984DE

Accessibility & contrast

On white

8.61

#2543A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#2543A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2543A7

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2543A7	#FFFFFF	#000000	##FFFFFF
##2543A7	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AA

Deuteranopia (green-blind)

#0046A5

Tritanopia (blue-blind)

#005C6E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2543a7;
/* rgb */ color: rgb(37, 67, 167);
/* oklch */ color: oklch(42.6% 0.165 266.5);

Tailwind

colors: {
  custom: {
    50: '#7476c2',
    500: '#2543a7',
    950: '#000000',
  },
}

SCSS

$custom: #2543a7;
$custom-light: #7476c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2543a7",
  "rgb": {
    "r": 37,
    "g": 67,
    "b": 167
  },
  "hsl": {
    "h": 226.154,
    "s": 63.725,
    "l": 40
  },
  "oklch": {
    "l": 0.42573,
    "c": 0.16472,
    "h": 266.5
  },
  "luminance": 0.07198
}

Semantic roles & 50–950 ramp

primary

#2543A7

secondary

#C4AE64

accent

#C141E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2543A7

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

Preview Lab → · Contrast checker → · Palette generator →