#2556A3#2556A3

#2556A3 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.3% C 0.135 H 259.3°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#2556A3
RGB	rgb(37, 86, 163)
HSL	hsl(217, 63%, 39%)
HSV	hsv(217, 77%, 64%)
CMYK	cmyk(77.3%, 47.2%, 0%, 36.1%)
CIE-LAB	lab(37.28, 11.75, -46.36)
CIE-LCH	lch(37.28, 47.83, 284.22°)
OKLab	oklab(46.3% -0.0252 -0.133)
OKLCH	oklch(46.3% 0.135 259.3)
XYZ	xyz(10.6992, 9.6920, 35.9501)
Luminance	0.0969 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2556A3 #A37225

analogous

#2595A3 #2556A3 #3325A3

triadic

#2556A3 #A32556 #56A325

tetradic

#2556A3 #A32595 #A37225 #25A333

square

#2556A3 #A32595 #A37225 #25A333

split-complementary

#2556A3 #A33325 #95A325

monochromatic

#0E213F #1A3C71 #2556A3 #3471D1 #6694DC

Accessibility & contrast

On white

7.15

#2556A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#2556A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2556A3

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2556A3	#FFFFFF	#000000	##FFFFFF
##2556A3	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5EA6

Deuteranopia (green-blind)

#0B52A1

Tritanopia (blue-blind)

#006874

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2556a3;
/* rgb */ color: rgb(37, 86, 163);
/* oklch */ color: oklch(46.3% 0.135 259.3);

Tailwind

colors: {
  custom: {
    50: '#7285bf',
    500: '#2556a3',
    950: '#000000',
  },
}

SCSS

$custom: #2556a3;
$custom-light: #7285bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2556a3",
  "rgb": {
    "r": 37,
    "g": 86,
    "b": 163
  },
  "hsl": {
    "h": 216.667,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.46299,
    "c": 0.13542,
    "h": 259.3
  },
  "luminance": 0.09693
}

Semantic roles & 50–950 ramp

primary

#2556A3

secondary

#C29D62

accent

#A642E6

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2556A3

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

Preview Lab → · Contrast checker → · Palette generator →