#2550AA#2550AA

#2550AA is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.5% C 0.153 H 262.7°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#2550AA
RGB	rgb(37, 80, 170)
HSL	hsl(221, 64%, 41%)
HSV	hsv(221, 78%, 67%)
CMYK	cmyk(78.2%, 52.9%, 0%, 33.3%)
CIE-LAB	lab(36.05, 18.47, -52.54)
CIE-LCH	lch(36.05, 55.69, 289.37°)
OKLab	oklab(45.51% -0.0194 -0.1513)
OKLCH	oklch(45.51% 0.153 262.7)
XYZ	xyz(10.8847, 9.0317, 39.1920)
Luminance	0.0903 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2550AA #AA7F25

analogous

#2592AA #2550AA #3D25AA

triadic

#2550AA #AA2550 #50AA25

tetradic

#2550AA #AA2592 #AA7F25 #25AA3D

square

#2550AA #AA2592 #AA7F25 #25AA3D

split-complementary

#2550AA #AA3D25 #92AA25

monochromatic

#0F2145 #1A3878 #2550AA #386BD4 #6B90DF

Accessibility & contrast

On white

7.48

#2550AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#2550AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2550AA

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2550AA	#FFFFFF	#000000	##FFFFFF
##2550AA	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F5BAD

Deuteranopia (green-blind)

#004FA8

Tritanopia (blue-blind)

#006675

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2550aa;
/* rgb */ color: rgb(37, 80, 170);
/* oklch */ color: oklch(45.5% 0.153 262.7);

Tailwind

colors: {
  custom: {
    50: '#7480c4',
    500: '#2550aa',
    950: '#000000',
  },
}

SCSS

$custom: #2550aa;
$custom-light: #7480c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2550aa",
  "rgb": {
    "r": 37,
    "g": 80,
    "b": 170
  },
  "hsl": {
    "h": 220.602,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.45506,
    "c": 0.15257,
    "h": 262.7
  },
  "luminance": 0.09033
}

Semantic roles & 50–950 ramp

primary

#2550AA

secondary

#C5A666

accent

#B141E7

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2550AA

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

Preview Lab → · Contrast checker → · Palette generator →