#2A57A4#2A57A4

#2A57A4 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.8% C 0.134 H 260.4°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#2A57A4
RGB	rgb(42, 87, 164)
HSL	hsl(218, 59%, 40%)
HSV	hsv(218, 74%, 64%)
CMYK	cmyk(74.4%, 47%, 0%, 35.7%)
CIE-LAB	lab(37.82, 12.13, -46.09)
CIE-LCH	lch(37.82, 47.66, 284.75°)
OKLab	oklab(46.78% -0.0224 -0.1321)
OKLCH	oklch(46.78% 0.134 260.4)
XYZ	xyz(11.0615, 9.9878, 36.4596)
Luminance	0.0999 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A57A4 #A4772A

analogous

#2A94A4 #2A57A4 #3A2AA4

triadic

#2A57A4 #A42A57 #57A42A

tetradic

#2A57A4 #A42A94 #A4772A #2AA43A

square

#2A57A4 #A42A94 #A4772A #2AA43A

split-complementary

#2A57A4 #A43A2A #94A42A

monochromatic

#112343 #1E3D73 #2A57A4 #3E73CD #6E96DA

Accessibility & contrast

On white

7.01

#2A57A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#2A57A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A57A4

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A57A4	#FFFFFF	#000000	##FFFFFF
##2A57A4	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5FA7

Deuteranopia (green-blind)

#1254A2

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2a57a4;
/* rgb */ color: rgb(42, 87, 164);
/* oklch */ color: oklch(46.8% 0.134 260.4);

Tailwind

colors: {
  custom: {
    50: '#7485bf',
    500: '#2a57a4',
    950: '#000000',
  },
}

SCSS

$custom: #2a57a4;
$custom-light: #7485bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a57a4",
  "rgb": {
    "r": 42,
    "g": 87,
    "b": 164
  },
  "hsl": {
    "h": 217.869,
    "s": 59.223,
    "l": 40.392
  },
  "oklch": {
    "l": 0.46784,
    "c": 0.13403,
    "h": 260.4
  },
  "luminance": 0.09989
}

Semantic roles & 50–950 ramp

primary

#2A57A4

secondary

#C1A069

accent

#A845E2

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2A57A4

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

Preview Lab → · Contrast checker → · Palette generator →