#2A57BA#2A57BA

#2A57BA is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.4% C 0.164 H 263.2°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#2A57BA
RGB	rgb(42, 87, 186)
HSL	hsl(221, 63%, 45%)
HSV	hsv(221, 77%, 73%)
CMYK	cmyk(77.4%, 53.2%, 0%, 27.1%)
CIE-LAB	lab(39.33, 20.58, -56.65)
CIE-LCH	lch(39.33, 60.27, 289.97°)
OKLab	oklab(48.42% -0.0194 -0.1632)
OKLCH	oklch(48.42% 0.164 263.2)
XYZ	xyz(13.2228, 10.8523, 47.8427)
Luminance	0.1085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A57BA #BA8D2A

analogous

#2A9FBA #2A57BA #452ABA

triadic

#2A57BA #BA2A57 #57BA2A

tetradic

#2A57BA #BA2A9F #BA8D2A #2ABA45

square

#2A57BA #BA2A9F #BA8D2A #2ABA45

split-complementary

#2A57BA #BA452A #9FBA2A

monochromatic

#132856 #1F4088 #2A57BA #4B76D6 #7D9CE2

Accessibility & contrast

On white

6.62

#2A57BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#2A57BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A57BA

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A57BA	#FFFFFF	#000000	##FFFFFF
##2A57BA	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B64BD

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2a57ba;
/* rgb */ color: rgb(42, 87, 186);
/* oklch */ color: oklch(48.4% 0.164 263.2);

Tailwind

colors: {
  custom: {
    50: '#7985cf',
    500: '#2a57ba',
    950: '#000000',
  },
}

SCSS

$custom: #2a57ba;
$custom-light: #7985cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a57ba",
  "rgb": {
    "r": 42,
    "g": 87,
    "b": 186
  },
  "hsl": {
    "h": 221.25,
    "s": 63.158,
    "l": 44.706
  },
  "oklch": {
    "l": 0.48419,
    "c": 0.16438,
    "h": 263.2
  },
  "luminance": 0.10854
}

Semantic roles & 50–950 ramp

primary

#2A57BA

secondary

#CAB076

accent

#B342E6

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2A57BA

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

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