#2552B3#2552B3

#2552B3 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.6% C 0.162 H 262.9°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#2552B3
RGB	rgb(37, 82, 179)
HSL	hsl(221, 66%, 42%)
HSV	hsv(221, 79%, 70%)
CMYK	cmyk(79.3%, 54.2%, 0%, 29.8%)
CIE-LAB	lab(37.26, 20.65, -55.89)
CIE-LCH	lch(37.26, 59.59, 290.27°)
OKLab	oklab(46.64% -0.02 -0.1612)
OKLCH	oklch(46.64% 0.162 262.9)
XYZ	xyz(11.9140, 9.6812, 43.8798)
Luminance	0.0968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2552B3 #B38625

analogous

#2599B3 #2552B3 #3F25B3

triadic

#2552B3 #B32552 #52B325

tetradic

#2552B3 #B32599 #B38625 #25B33F

square

#2552B3 #B32599 #B38625 #25B33F

split-complementary

#2552B3 #B33F25 #99B325

monochromatic

#10244E #1B3B80 #2552B3 #3E6FD7 #7195E2

Accessibility & contrast

On white

7.15

#2552B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#2552B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2552B3

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2552B3	#FFFFFF	#000000	##FFFFFF
##2552B3	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FB6

Deuteranopia (green-blind)

#0051B1

Tritanopia (blue-blind)

#006A7A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2552b3;
/* rgb */ color: rgb(37, 82, 179);
/* oklch */ color: oklch(46.6% 0.162 262.9);

Tailwind

colors: {
  custom: {
    50: '#7682ca',
    500: '#2552b3',
    950: '#000000',
  },
}

SCSS

$custom: #2552b3;
$custom-light: #7682ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2552b3",
  "rgb": {
    "r": 37,
    "g": 82,
    "b": 179
  },
  "hsl": {
    "h": 220.986,
    "s": 65.741,
    "l": 42.353
  },
  "oklch": {
    "l": 0.46641,
    "c": 0.1624,
    "h": 262.9
  },
  "luminance": 0.09683
}

Semantic roles & 50–950 ramp

primary

#2552B3

secondary

#C8AB6B

accent

#B33FE9

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2552B3

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

Preview Lab → · Contrast checker → · Palette generator →