#3A57A3#3A57A3

#3A57A3 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.5% C 0.127 H 266.0°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3A57A3
RGB	rgb(58, 87, 163)
HSL	hsl(223, 48%, 43%)
HSV	hsv(223, 64%, 64%)
CMYK	cmyk(64.4%, 46.6%, 0%, 36.1%)
CIE-LAB	lab(38.48, 14.34, -44.40)
CIE-LCH	lch(38.48, 46.65, 287.90°)
OKLab	oklab(47.47% -0.0088 -0.1269)
OKLCH	oklch(47.47% 0.127 266)
XYZ	xyz(11.7617, 10.3592, 36.0229)
Luminance	0.1036 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A57A3 #A3863A

analogous

#3A8BA3 #3A57A3 #523AA3

triadic

#3A57A3 #A33A57 #57A33A

tetradic

#3A57A3 #A33A8B #A3863A #3AA352

square

#3A57A3 #A33A8B #A3863A #3AA352

split-complementary

#3A57A3 #A3523A #8BA33A

monochromatic

#1A2749 #2A3F76 #3A57A3 #5775C3 #849AD3

Accessibility & contrast

On white

6.84

#3A57A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3A57A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A57A3

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A57A3	#FFFFFF	#000000	##FFFFFF
##3A57A3	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3260A6

Deuteranopia (green-blind)

#2056A1

Tritanopia (blue-blind)

#006875

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3a57a3;
/* rgb */ color: rgb(58, 87, 163);
/* oklch */ color: oklch(47.5% 0.127 266.0);

Tailwind

colors: {
  custom: {
    50: '#7b86bf',
    500: '#3a57a3',
    950: '#000000',
  },
}

SCSS

$custom: #3a57a3;
$custom-light: #7b86bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3a57a3",
  "rgb": {
    "r": 58,
    "g": 87,
    "b": 163
  },
  "hsl": {
    "h": 223.429,
    "s": 47.511,
    "l": 43.333
  },
  "oklch": {
    "l": 0.47467,
    "c": 0.12719,
    "h": 266
  },
  "luminance": 0.1036
}

Semantic roles & 50–950 ramp

primary

#3A57A3

secondary

#BDAB7C

accent

#B251D7

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3A57A3

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

Preview Lab → · Contrast checker → · Palette generator →