#2556A9#2556A9

#2556A9 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.7% C 0.144 H 260.3°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#2556A9
RGB	rgb(37, 86, 169)
HSL	hsl(218, 64%, 40%)
HSV	hsv(218, 78%, 66%)
CMYK	cmyk(78.1%, 49.1%, 0%, 33.7%)
CIE-LAB	lab(37.68, 14.09, -49.29)
CIE-LCH	lch(37.68, 51.27, 285.96°)
OKLab	oklab(46.74% -0.0242 -0.1417)
OKLCH	oklch(46.74% 0.144 260.3)
XYZ	xyz(11.2496, 9.9122, 38.8488)
Luminance	0.0991 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2556A9 #A97825

analogous

#2598A9 #2556A9 #3625A9

triadic

#2556A9 #A92556 #56A925

tetradic

#2556A9 #A92598 #A97825 #25A936

square

#2556A9 #A92598 #A97825 #25A936

split-complementary

#2556A9 #A93625 #98A925

monochromatic

#0F2345 #1A3C77 #2556A9 #3872D3 #6A95DE

Accessibility & contrast

On white

7.04

#2556A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#2556A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2556A9

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2556A9	#FFFFFF	#000000	##FFFFFF
##2556A9	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265FAC

Deuteranopia (green-blind)

#0053A7

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2556a9;
/* rgb */ color: rgb(37, 86, 169);
/* oklch */ color: oklch(46.7% 0.144 260.3);

Tailwind

colors: {
  custom: {
    50: '#7485c3',
    500: '#2556a9',
    950: '#000000',
  },
}

SCSS

$custom: #2556a9;
$custom-light: #7485c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2556a9",
  "rgb": {
    "r": 37,
    "g": 86,
    "b": 169
  },
  "hsl": {
    "h": 217.727,
    "s": 64.078,
    "l": 40.392
  },
  "oklch": {
    "l": 0.46736,
    "c": 0.14373,
    "h": 260.3
  },
  "luminance": 0.09913
}

Semantic roles & 50–950 ramp

primary

#2556A9

secondary

#C4A165

accent

#A941E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2556A9

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

Preview Lab → · Contrast checker → · Palette generator →