#2156A4#2156A4

#2156A4 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.2% C 0.138 H 258.4°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#2156A4
RGB	rgb(33, 86, 164)
HSL	hsl(216, 66%, 39%)
HSV	hsv(216, 80%, 64%)
CMYK	cmyk(79.9%, 47.6%, 0%, 35.7%)
CIE-LAB	lab(37.22, 11.67, -47.07)
CIE-LCH	lch(37.22, 48.49, 283.93°)
OKLab	oklab(46.24% -0.0276 -0.1352)
OKLCH	oklch(46.24% 0.138 258.4)
XYZ	xyz(10.6534, 9.6580, 36.4175)
Luminance	0.0966 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2156A4 #A46F21

analogous

#2197A4 #2156A4 #2D21A4

triadic

#2156A4 #A42156 #56A421

tetradic

#2156A4 #A42197 #A46F21 #21A42D

square

#2156A4 #A42197 #A46F21 #21A42D

split-complementary

#2156A4 #A42D21 #97A421

monochromatic

#0C213E #173B71 #2156A4 #2D71D5 #6094DF

Accessibility & contrast

On white

7.16

#2156A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#2156A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2156A4

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2156A4	#FFFFFF	#000000	##FFFFFF
##2156A4	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5EA7

Deuteranopia (green-blind)

#0352A2

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2156a4;
/* rgb */ color: rgb(33, 86, 164);
/* oklch */ color: oklch(46.2% 0.138 258.4);

Tailwind

colors: {
  custom: {
    50: '#7185bf',
    500: '#2156a4',
    950: '#000000',
  },
}

SCSS

$custom: #2156a4;
$custom-light: #7185bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2156a4",
  "rgb": {
    "r": 33,
    "g": 86,
    "b": 164
  },
  "hsl": {
    "h": 215.725,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.46236,
    "c": 0.13798,
    "h": 258.4
  },
  "luminance": 0.09659
}

Semantic roles & 50–950 ramp

primary

#2156A4

secondary

#C49A5D

accent

#A43EE9

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2156A4

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

Preview Lab → · Contrast checker → · Palette generator →