#2547B0#2547B0

#2547B0 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.1% C 0.172 H 265.8°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#2547B0
RGB	rgb(37, 71, 176)
HSL	hsl(225, 65%, 42%)
HSV	hsv(225, 79%, 69%)
CMYK	cmyk(79%, 59.7%, 0%, 31%)
CIE-LAB	lab(34.05, 26.81, -59.34)
CIE-LCH	lch(34.05, 65.12, 294.31°)
OKLab	oklab(44.15% -0.0126 -0.1715)
OKLCH	oklch(44.15% 0.172 265.8)
XYZ	xyz(10.8499, 8.0331, 42.0446)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2547B0 #B08E25

analogous

#258DB0 #2547B0 #4925B0

triadic

#2547B0 #B02547 #47B025

tetradic

#2547B0 #B0258D #B08E25 #25B049

square

#2547B0 #B0258D #B08E25 #25B049

split-complementary

#2547B0 #B04925 #8DB025

monochromatic

#101E4B #1A337D #2547B0 #3C62D6 #6F8BE1

Accessibility & contrast

On white

8.06

#2547B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#2547B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2547B0

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2547B0	#FFFFFF	#000000	##FFFFFF
##2547B0	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B4

Deuteranopia (green-blind)

#004AAE

Tritanopia (blue-blind)

#006274

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2547b0;
/* rgb */ color: rgb(37, 71, 176);
/* oklch */ color: oklch(44.1% 0.172 265.8);

Tailwind

colors: {
  custom: {
    50: '#7679c8',
    500: '#2547b0',
    950: '#000000',
  },
}

SCSS

$custom: #2547b0;
$custom-light: #7679c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2547b0",
  "rgb": {
    "r": 37,
    "g": 71,
    "b": 176
  },
  "hsl": {
    "h": 225.324,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.44149,
    "c": 0.17195,
    "h": 265.8
  },
  "luminance": 0.08034
}

Semantic roles & 50–950 ramp

primary

#2547B0

secondary

#C7B06A

accent

#BF40E8

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2547B0

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

Preview Lab → · Contrast checker → · Palette generator →