#2547B3#2547B3

#2547B3 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.4% C 0.176 H 265.9°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#2547B3
RGB	rgb(37, 71, 179)
HSL	hsl(226, 66%, 42%)
HSV	hsv(226, 79%, 70%)
CMYK	cmyk(79.3%, 60.3%, 0%, 29.8%)
CIE-LAB	lab(34.30, 27.95, -60.72)
CIE-LCH	lch(34.30, 66.84, 294.72°)
OKLab	oklab(44.41% -0.0125 -0.1755)
OKLCH	oklch(44.41% 0.176 265.9)
XYZ	xyz(11.1500, 8.1532, 43.6252)
Luminance	0.0815 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2547B3 #B39125

analogous

#258EB3 #2547B3 #4A25B3

triadic

#2547B3 #B32547 #47B325

tetradic

#2547B3 #B3258E #B39125 #25B34A

square

#2547B3 #B3258E #B39125 #25B34A

split-complementary

#2547B3 #B34A25 #8EB325

monochromatic

#101F4E #1B3380 #2547B3 #3E63D7 #718CE2

Accessibility & contrast

On white

7.98

#2547B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#2547B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2547B3

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2547B3	#FFFFFF	#000000	##FFFFFF
##2547B3	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#004AB1

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2547b3;
/* rgb */ color: rgb(37, 71, 179);
/* oklch */ color: oklch(44.4% 0.176 265.9);

Tailwind

colors: {
  custom: {
    50: '#7779cb',
    500: '#2547b3',
    950: '#000000',
  },
}

SCSS

$custom: #2547b3;
$custom-light: #7779cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2547b3",
  "rgb": {
    "r": 37,
    "g": 71,
    "b": 179
  },
  "hsl": {
    "h": 225.634,
    "s": 65.741,
    "l": 42.353
  },
  "oklch": {
    "l": 0.44412,
    "c": 0.17598,
    "h": 265.9
  },
  "luminance": 0.08154
}

Semantic roles & 50–950 ramp

primary

#2547B3

secondary

#C8B26B

accent

#C03FE9

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2547B3

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

Preview Lab → · Contrast checker → · Palette generator →