#2556A8#2556A8

#2556A8 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.7% C 0.142 H 260.1°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#2556A8
RGB	rgb(37, 86, 168)
HSL	hsl(218, 64%, 40%)
HSV	hsv(218, 78%, 66%)
CMYK	cmyk(78%, 48.8%, 0%, 34.1%)
CIE-LAB	lab(37.62, 13.70, -48.81)
CIE-LCH	lch(37.62, 50.69, 285.68°)
OKLab	oklab(46.66% -0.0244 -0.1402)
OKLCH	oklch(46.66% 0.142 260.1)
XYZ	xyz(11.1561, 9.8748, 38.3562)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2556A8 #A87725

analogous

#2597A8 #2556A8 #3525A8

triadic

#2556A8 #A82556 #56A825

tetradic

#2556A8 #A82597 #A87725 #25A835

square

#2556A8 #A82597 #A87725 #25A835

split-complementary

#2556A8 #A83525 #97A825

monochromatic

#0F2344 #1A3C76 #2556A8 #3771D3 #6995DE

Accessibility & contrast

On white

7.06

#2556A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#2556A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2556A8

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2556A8	#FFFFFF	#000000	##FFFFFF
##2556A8	1.00	7.06	2.98	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#275FAB

Deuteranopia (green-blind)

#0053A6

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2556a8;
/* rgb */ color: rgb(37, 86, 168);
/* oklch */ color: oklch(46.7% 0.142 260.1);

Tailwind

colors: {
  custom: {
    50: '#7385c2',
    500: '#2556a8',
    950: '#000000',
  },
}

SCSS

$custom: #2556a8;
$custom-light: #7385c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2556a8",
  "rgb": {
    "r": 37,
    "g": 86,
    "b": 168
  },
  "hsl": {
    "h": 217.557,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.46662,
    "c": 0.14235,
    "h": 260.1
  },
  "luminance": 0.09876
}

Semantic roles & 50–950 ramp

primary

#2556A8

secondary

#C4A065

accent

#A941E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2556A8

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

Preview Lab → · Contrast checker → · Palette generator →