#2550B1#2550B1

#2550B1 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.1% C 0.162 H 263.4°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#2550B1
RGB	rgb(37, 80, 177)
HSL	hsl(222, 65%, 42%)
HSV	hsv(222, 79%, 69%)
CMYK	cmyk(79.1%, 54.8%, 0%, 30.6%)
CIE-LAB	lab(36.56, 21.20, -55.85)
CIE-LCH	lch(36.56, 59.74, 290.79°)
OKLab	oklab(46.06% -0.0187 -0.1611)
OKLCH	oklch(46.06% 0.162 263.4)
XYZ	xyz(11.5646, 9.3036, 42.7727)
Luminance	0.0930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2550B1 #B18625

analogous

#2596B1 #2550B1 #4025B1

triadic

#2550B1 #B12550 #50B125

tetradic

#2550B1 #B12596 #B18625 #25B140

square

#2550B1 #B12596 #B18625 #25B140

split-complementary

#2550B1 #B14025 #96B125

monochromatic

#10224C #1A397E #2550B1 #3D6CD6 #6F92E1

Accessibility & contrast

On white

7.34

#2550B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#2550B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2550B1

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2550B1	#FFFFFF	#000000	##FFFFFF
##2550B1	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB4

Deuteranopia (green-blind)

#0050AF

Tritanopia (blue-blind)

#006878

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2550b1;
/* rgb */ color: rgb(37, 80, 177);
/* oklch */ color: oklch(46.1% 0.162 263.4);

Tailwind

colors: {
  custom: {
    50: '#7680c9',
    500: '#2550b1',
    950: '#000000',
  },
}

SCSS

$custom: #2550b1;
$custom-light: #7680c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2550b1",
  "rgb": {
    "r": 37,
    "g": 80,
    "b": 177
  },
  "hsl": {
    "h": 221.571,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.46062,
    "c": 0.16216,
    "h": 263.4
  },
  "luminance": 0.09305
}

Semantic roles & 50–950 ramp

primary

#2550B1

secondary

#C8AB6A

accent

#B43FE8

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2550B1

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

Preview Lab → · Contrast checker → · Palette generator →