#2A57A8#2A57A8

#2A57A8 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.1% C 0.140 H 261.1°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#2A57A8
RGB	rgb(42, 87, 168)
HSL	hsl(219, 60%, 41%)
HSV	hsv(219, 75%, 66%)
CMYK	cmyk(75%, 48.2%, 0%, 34.1%)
CIE-LAB	lab(38.08, 13.67, -48.05)
CIE-LCH	lch(38.08, 49.95, 285.88°)
OKLab	oklab(47.07% -0.0217 -0.1379)
OKLCH	oklch(47.07% 0.14 261.1)
XYZ	xyz(11.4284, 10.1345, 38.3920)
Luminance	0.1014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A57A8 #A87B2A

analogous

#2A96A8 #2A57A8 #3C2AA8

triadic

#2A57A8 #A82A57 #57A82A

tetradic

#2A57A8 #A82A96 #A87B2A #2AA83C

square

#2A57A8 #A82A96 #A87B2A #2AA83C

split-complementary

#2A57A8 #A83C2A #96A82A

monochromatic

#122446 #1E3E77 #2A57A8 #4073CF #7197DB

Accessibility & contrast

On white

6.94

#2A57A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#2A57A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A57A8

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A57A8	#FFFFFF	#000000	##FFFFFF
##2A57A8	1.00	6.94	3.03	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A60AB

Deuteranopia (green-blind)

#0454A6

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2a57a8;
/* rgb */ color: rgb(42, 87, 168);
/* oklch */ color: oklch(47.1% 0.140 261.1);

Tailwind

colors: {
  custom: {
    50: '#7585c2',
    500: '#2a57a8',
    950: '#000000',
  },
}

SCSS

$custom: #2a57a8;
$custom-light: #7585c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a57a8",
  "rgb": {
    "r": 42,
    "g": 87,
    "b": 168
  },
  "hsl": {
    "h": 218.571,
    "s": 60,
    "l": 41.176
  },
  "oklch": {
    "l": 0.47069,
    "c": 0.13961,
    "h": 261.1
  },
  "luminance": 0.10136
}

Semantic roles & 50–950 ramp

primary

#2A57A8

secondary

#C3A36B

accent

#AB45E3

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #2A57A8

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

Preview Lab → · Contrast checker → · Palette generator →