#2556AD#2556AD

#2556AD is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.0% C 0.149 H 260.9°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#2556AD
RGB	rgb(37, 86, 173)
HSL	hsl(218, 65%, 41%)
HSV	hsv(218, 79%, 68%)
CMYK	cmyk(78.6%, 50.3%, 0%, 32.2%)
CIE-LAB	lab(37.96, 15.65, -51.22)
CIE-LCH	lch(37.96, 53.56, 286.99°)
OKLab	oklab(47.03% -0.0237 -0.1473)
OKLCH	oklch(47.03% 0.149 260.9)
XYZ	xyz(11.6308, 10.0647, 40.8567)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2556AD #AD7C25

analogous

#259AAD #2556AD #3825AD

triadic

#2556AD #AD2556 #56AD25

tetradic

#2556AD #AD259A #AD7C25 #25AD38

square

#2556AD #AD259A #AD7C25 #25AD38

split-complementary

#2556AD #AD3825 #9AAD25

monochromatic

#0F2448 #1A3D7B #2556AD #3A72D5 #6D96E0

Accessibility & contrast

On white

6.97

#2556AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2556AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2556AD

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2556AD	#FFFFFF	#000000	##FFFFFF
##2556AD	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2160B0

Deuteranopia (green-blind)

#0054AB

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2556ad;
/* rgb */ color: rgb(37, 86, 173);
/* oklch */ color: oklch(47.0% 0.149 260.9);

Tailwind

colors: {
  custom: {
    50: '#7585c6',
    500: '#2556ad',
    950: '#000000',
  },
}

SCSS

$custom: #2556ad;
$custom-light: #7585c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2556ad",
  "rgb": {
    "r": 37,
    "g": 86,
    "b": 173
  },
  "hsl": {
    "h": 218.382,
    "s": 64.762,
    "l": 41.176
  },
  "oklch": {
    "l": 0.47033,
    "c": 0.14924,
    "h": 260.9
  },
  "luminance": 0.10066
}

Semantic roles & 50–950 ramp

primary

#2556AD

secondary

#C6A468

accent

#AB40E8

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2556AD

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

Preview Lab → · Contrast checker → · Palette generator →