#2A57AD#2A57AD

#2A57AD is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.4% C 0.147 H 261.8°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#2A57AD
RGB	rgb(42, 87, 173)
HSL	hsl(219, 61%, 42%)
HSV	hsv(219, 76%, 68%)
CMYK	cmyk(75.7%, 49.7%, 0%, 32.2%)
CIE-LAB	lab(38.42, 15.59, -50.47)
CIE-LCH	lch(38.42, 52.83, 287.17°)
OKLab	oklab(47.43% -0.021 -0.1451)
OKLCH	oklch(47.43% 0.147 261.8)
XYZ	xyz(11.9032, 10.3244, 40.8925)
Luminance	0.1033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A57AD #AD802A

analogous

#2A99AD #2A57AD #3E2AAD

triadic

#2A57AD #AD2A57 #57AD2A

tetradic

#2A57AD #AD2A99 #AD802A #2AAD3E

square

#2A57AD #AD2A99 #AD802A #2AAD3E

split-complementary

#2A57AD #AD3E2A #99AD2A

monochromatic

#12254B #1E3E7C #2A57AD #4374D1 #7498DD

Accessibility & contrast

On white

6.85

#2A57AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#2A57AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A57AD

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A57AD	#FFFFFF	#000000	##FFFFFF
##2A57AD	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2561B0

Deuteranopia (green-blind)

#0055AB

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2a57ad;
/* rgb */ color: rgb(42, 87, 173);
/* oklch */ color: oklch(47.4% 0.147 261.8);

Tailwind

colors: {
  custom: {
    50: '#7685c6',
    500: '#2a57ad',
    950: '#000000',
  },
}

SCSS

$custom: #2a57ad;
$custom-light: #7685c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2a57ad",
  "rgb": {
    "r": 42,
    "g": 87,
    "b": 173
  },
  "hsl": {
    "h": 219.389,
    "s": 60.93,
    "l": 42.157
  },
  "oklch": {
    "l": 0.47434,
    "c": 0.14656,
    "h": 261.8
  },
  "luminance": 0.10326
}

Semantic roles & 50–950 ramp

primary

#2A57AD

secondary

#C5A76E

accent

#AD44E4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2A57AD

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

Preview Lab → · Contrast checker → · Palette generator →