#3A57BF#3A57BF

#3A57BF is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.5% C 0.167 H 268.0°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#3A57BF
RGB	rgb(58, 87, 191)
HSL	hsl(227, 53%, 49%)
HSV	hsv(227, 70%, 75%)
CMYK	cmyk(69.6%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(40.37, 24.52, -57.85)
CIE-LCH	lch(40.37, 62.83, 292.97°)
OKLab	oklab(49.51% -0.0058 -0.1665)
OKLCH	oklch(49.51% 0.167 268)
XYZ	xyz(14.5538, 11.4761, 50.7282)
Luminance	0.1148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A57BF #BFA23A

analogous

#3A9ABF #3A57BF #603ABF

triadic

#3A57BF #BF3A57 #57BF3A

tetradic

#3A57BF #BF3A9A #BFA23A #3ABF60

square

#3A57BF #BF3A9A #BFA23A #3ABF60

split-complementary

#3A57BF #BF603A #9ABF3A

monochromatic

#1D2C61 #2C4290 #3A57BF #667DD0 #95A5DF

Accessibility & contrast

On white

6.37

#3A57BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#3A57BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A57BF

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A57BF	#FFFFFF	#000000	##FFFFFF
##3A57BF	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C3

Deuteranopia (green-blind)

#0059BD

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3a57bf;
/* rgb */ color: rgb(58, 87, 191);
/* oklch */ color: oklch(49.5% 0.167 268.0);

Tailwind

colors: {
  custom: {
    50: '#8086d3',
    500: '#3a57bf',
    950: '#000000',
  },
}

SCSS

$custom: #3a57bf;
$custom-light: #8086d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3a57bf",
  "rgb": {
    "r": 58,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 226.917,
    "s": 53.414,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49508,
    "c": 0.16657,
    "h": 268
  },
  "luminance": 0.11478
}

Semantic roles & 50–950 ramp

primary

#3A57BF

secondary

#CABC8B

accent

#BD4BDD

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3A57BF

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

Preview Lab → · Contrast checker → · Palette generator →