#2556A5#2556A5

#2556A5 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.4% C 0.138 H 259.6°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#2556A5
RGB	rgb(37, 86, 165)
HSL	hsl(217, 63%, 40%)
HSV	hsv(217, 78%, 65%)
CMYK	cmyk(77.6%, 47.9%, 0%, 35.3%)
CIE-LAB	lab(37.42, 12.53, -47.34)
CIE-LCH	lch(37.42, 48.97, 284.82°)
OKLab	oklab(46.44% -0.0249 -0.1359)
OKLCH	oklch(46.44% 0.138 259.6)
XYZ	xyz(10.8798, 9.7643, 36.9013)
Luminance	0.0977 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2556A5 #A57425

analogous

#2596A5 #2556A5 #3425A5

triadic

#2556A5 #A52556 #56A525

tetradic

#2556A5 #A52596 #A57425 #25A534

square

#2556A5 #A52596 #A57425 #25A534

split-complementary

#2556A5 #A53425 #96A525

monochromatic

#0F2241 #1A3C73 #2556A5 #3571D2 #6794DD

Accessibility & contrast

On white

7.11

#2556A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#2556A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2556A5

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2556A5	#FFFFFF	#000000	##FFFFFF
##2556A5	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5EA8

Deuteranopia (green-blind)

#0453A3

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2556a5;
/* rgb */ color: rgb(37, 86, 165);
/* oklch */ color: oklch(46.4% 0.138 259.6);

Tailwind

colors: {
  custom: {
    50: '#7385c0',
    500: '#2556a5',
    950: '#000000',
  },
}

SCSS

$custom: #2556a5;
$custom-light: #7385c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2556a5",
  "rgb": {
    "r": 37,
    "g": 86,
    "b": 165
  },
  "hsl": {
    "h": 217.031,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.46443,
    "c": 0.1382,
    "h": 259.6
  },
  "luminance": 0.09766
}

Semantic roles & 50–950 ramp

primary

#2556A5

secondary

#C39E63

accent

#A741E6

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2556A5

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

Preview Lab → · Contrast checker → · Palette generator →