#2552B0#2552B0

#2552B0 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.4% C 0.158 H 262.7°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#2552B0
RGB	rgb(37, 82, 176)
HSL	hsl(221, 65%, 42%)
HSV	hsv(221, 79%, 69%)
CMYK	cmyk(79%, 53.4%, 0%, 31%)
CIE-LAB	lab(37.04, 19.48, -54.48)
CIE-LCH	lch(37.04, 57.86, 289.68°)
OKLab	oklab(46.4% -0.0202 -0.157)
OKLCH	oklch(46.4% 0.158 262.7)
XYZ	xyz(11.6139, 9.5611, 42.2993)
Luminance	0.0956 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2552B0 #B08325

analogous

#2597B0 #2552B0 #3E25B0

triadic

#2552B0 #B02552 #52B025

tetradic

#2552B0 #B02597 #B08325 #25B03E

square

#2552B0 #B02597 #B08325 #25B03E

split-complementary

#2552B0 #B03E25 #97B025

monochromatic

#10234B #1A3A7D #2552B0 #3C6ED6 #6F94E1

Accessibility & contrast

On white

7.21

#2552B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#2552B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2552B0

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2552B0	#FFFFFF	#000000	##FFFFFF
##2552B0	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#095EB3

Deuteranopia (green-blind)

#0051AE

Tritanopia (blue-blind)

#006979

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2552b0;
/* rgb */ color: rgb(37, 82, 176);
/* oklch */ color: oklch(46.4% 0.158 262.7);

Tailwind

colors: {
  custom: {
    50: '#7682c8',
    500: '#2552b0',
    950: '#000000',
  },
}

SCSS

$custom: #2552b0;
$custom-light: #7682c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2552b0",
  "rgb": {
    "r": 37,
    "g": 82,
    "b": 176
  },
  "hsl": {
    "h": 220.576,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.46403,
    "c": 0.15831,
    "h": 262.7
  },
  "luminance": 0.09562
}

Semantic roles & 50–950 ramp

primary

#2552B0

secondary

#C7A96A

accent

#B240E8

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2552B0

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

Preview Lab → · Contrast checker → · Palette generator →