#2550AD#2550AD

#2550AD is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.7% C 0.157 H 263.0°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#2550AD
RGB	rgb(37, 80, 173)
HSL	hsl(221, 65%, 41%)
HSV	hsv(221, 79%, 68%)
CMYK	cmyk(78.6%, 53.8%, 0%, 32.2%)
CIE-LAB	lab(36.26, 19.64, -53.96)
CIE-LCH	lch(36.26, 57.43, 290.00°)
OKLab	oklab(45.74% -0.0191 -0.1555)
OKLCH	oklch(45.74% 0.157 263)
XYZ	xyz(11.1717, 9.1465, 40.7037)
Luminance	0.0915 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2550AD #AD8225

analogous

#2594AD #2550AD #3E25AD

triadic

#2550AD #AD2550 #50AD25

tetradic

#2550AD #AD2594 #AD8225 #25AD3E

square

#2550AD #AD2594 #AD8225 #25AD3E

split-complementary

#2550AD #AD3E25 #94AD25

monochromatic

#0F2148 #1A397B #2550AD #3A6BD5 #6D91E0

Accessibility & contrast

On white

7.42

#2550AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#2550AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2550AD

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2550AD	#FFFFFF	#000000	##FFFFFF
##2550AD	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#055CB0

Deuteranopia (green-blind)

#004FAB

Tritanopia (blue-blind)

#006776

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2550ad;
/* rgb */ color: rgb(37, 80, 173);
/* oklch */ color: oklch(45.7% 0.157 263.0);

Tailwind

colors: {
  custom: {
    50: '#7580c6',
    500: '#2550ad',
    950: '#000000',
  },
}

SCSS

$custom: #2550ad;
$custom-light: #7580c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2550ad",
  "rgb": {
    "r": 37,
    "g": 80,
    "b": 173
  },
  "hsl": {
    "h": 221.029,
    "s": 64.762,
    "l": 41.176
  },
  "oklch": {
    "l": 0.45743,
    "c": 0.15669,
    "h": 263
  },
  "luminance": 0.09148
}

Semantic roles & 50–950 ramp

primary

#2550AD

secondary

#C6A868

accent

#B340E8

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2550AD

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

Preview Lab → · Contrast checker → · Palette generator →