#2550A5#2550A5

#2550A5 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.1% C 0.146 H 262.1°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#2550A5
RGB	rgb(37, 80, 165)
HSL	hsl(220, 63%, 40%)
HSV	hsv(220, 78%, 65%)
CMYK	cmyk(77.6%, 51.5%, 0%, 35.3%)
CIE-LAB	lab(35.69, 16.52, -50.13)
CIE-LCH	lch(35.69, 52.79, 288.24°)
OKLab	oklab(45.12% -0.02 -0.1443)
OKLCH	oklch(45.12% 0.146 262.1)
XYZ	xyz(10.4207, 8.8461, 36.7483)
Luminance	0.0885 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2550A5 #A57A25

analogous

#2590A5 #2550A5 #3A25A5

triadic

#2550A5 #A52550 #50A525

tetradic

#2550A5 #A52590 #A57A25 #25A53A

square

#2550A5 #A52590 #A57A25 #25A53A

split-complementary

#2550A5 #A53A25 #90A525

monochromatic

#0F2041 #1A3873 #2550A5 #356AD2 #678FDD

Accessibility & contrast

On white

7.58

#2550A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#2550A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2550A5

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2550A5	#FFFFFF	#000000	##FFFFFF
##2550A5	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A5AA8

Deuteranopia (green-blind)

#004EA3

Tritanopia (blue-blind)

#006473

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #2550a5;
/* rgb */ color: rgb(37, 80, 165);
/* oklch */ color: oklch(45.1% 0.146 262.1);

Tailwind

colors: {
  custom: {
    50: '#7380c0',
    500: '#2550a5',
    950: '#000000',
  },
}

SCSS

$custom: #2550a5;
$custom-light: #7380c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2550a5",
  "rgb": {
    "r": 37,
    "g": 80,
    "b": 165
  },
  "hsl": {
    "h": 219.844,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.45119,
    "c": 0.14563,
    "h": 262.1
  },
  "luminance": 0.08847
}

Semantic roles & 50–950 ramp

primary

#2550A5

secondary

#C3A363

accent

#AF41E6

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2550A5

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

Preview Lab → · Contrast checker → · Palette generator →