#2157A4#2157A4

#2157A4 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.5% C 0.137 H 258.0°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#2157A4
RGB	rgb(33, 87, 164)
HSL	hsl(215, 66%, 39%)
HSV	hsv(215, 80%, 64%)
CMYK	cmyk(79.9%, 47%, 0%, 35.7%)
CIE-LAB	lab(37.52, 11.01, -46.60)
CIE-LCH	lch(37.52, 47.88, 283.30°)
OKLab	oklab(46.46% -0.0285 -0.1338)
OKLCH	oklch(46.46% 0.137 258)
XYZ	xyz(10.7338, 9.8188, 36.4443)
Luminance	0.0982 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2157A4 #A46E21

analogous

#2198A4 #2157A4 #2C21A4

triadic

#2157A4 #A42157 #57A421

tetradic

#2157A4 #A42198 #A46E21 #21A42C

square

#2157A4 #A42198 #A46E21 #21A42C

split-complementary

#2157A4 #A42C21 #98A421

monochromatic

#0C213E #173C71 #2157A4 #2D72D5 #6095DF

Accessibility & contrast

On white

7.09

#2157A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#2157A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2157A4

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2157A4	#FFFFFF	#000000	##FFFFFF
##2157A4	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5FA7

Deuteranopia (green-blind)

#0A53A2

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2157a4;
/* rgb */ color: rgb(33, 87, 164);
/* oklch */ color: oklch(46.5% 0.137 258.0);

Tailwind

colors: {
  custom: {
    50: '#7185bf',
    500: '#2157a4',
    950: '#000000',
  },
}

SCSS

$custom: #2157a4;
$custom-light: #7185bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2157a4",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 164
  },
  "hsl": {
    "h": 215.267,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.46463,
    "c": 0.13676,
    "h": 258
  },
  "luminance": 0.0982
}

Semantic roles & 50–950 ramp

primary

#2157A4

secondary

#C4995D

accent

#A33EE9

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2157A4

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

Preview Lab → · Contrast checker → · Palette generator →