#2550A8#2550A8

#2550A8 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.4% C 0.150 H 262.5°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#2550A8
RGB	rgb(37, 80, 168)
HSL	hsl(220, 64%, 40%)
HSV	hsv(220, 78%, 66%)
CMYK	cmyk(78%, 52.4%, 0%, 34.1%)
CIE-LAB	lab(35.90, 17.69, -51.58)
CIE-LCH	lch(35.90, 54.53, 288.94°)
OKLab	oklab(45.35% -0.0196 -0.1485)
OKLCH	oklch(45.35% 0.15 262.5)
XYZ	xyz(10.6970, 8.9566, 38.2032)
Luminance	0.0896 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2550A8 #A87D25

analogous

#2592A8 #2550A8 #3B25A8

triadic

#2550A8 #A82550 #50A825

tetradic

#2550A8 #A82592 #A87D25 #25A83B

square

#2550A8 #A82592 #A87D25 #25A83B

split-complementary

#2550A8 #A83B25 #92A825

monochromatic

#0F2044 #1A3876 #2550A8 #376AD3 #6990DE

Accessibility & contrast

On white

7.52

#2550A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#2550A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2550A8

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2550A8	#FFFFFF	#000000	##FFFFFF
##2550A8	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#145BAB

Deuteranopia (green-blind)

#004FA6

Tritanopia (blue-blind)

#006574

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #2550a8;
/* rgb */ color: rgb(37, 80, 168);
/* oklch */ color: oklch(45.4% 0.150 262.5);

Tailwind

colors: {
  custom: {
    50: '#7480c2',
    500: '#2550a8',
    950: '#000000',
  },
}

SCSS

$custom: #2550a8;
$custom-light: #7480c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2550a8",
  "rgb": {
    "r": 37,
    "g": 80,
    "b": 168
  },
  "hsl": {
    "h": 220.305,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.4535,
    "c": 0.1498,
    "h": 262.5
  },
  "luminance": 0.08958
}

Semantic roles & 50–950 ramp

primary

#2550A8

secondary

#C4A565

accent

#B041E7

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2550A8

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

Preview Lab → · Contrast checker → · Palette generator →