#3A57CF#3A57CF

#3A57CF is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.8% C 0.188 H 268.5°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#3A57CF
RGB	rgb(58, 87, 207)
HSL	hsl(228, 61%, 52%)
HSV	hsv(228, 72%, 81%)
CMYK	cmyk(72%, 58%, 0%, 18.8%)
CIE-LAB	lab(41.56, 30.31, -65.19)
CIE-LCH	lch(41.56, 71.89, 294.94°)
OKLab	oklab(50.78% -0.0051 -0.188)
OKLCH	oklch(50.78% 0.188 268.5)
XYZ	xyz(16.4117, 12.2192, 60.5130)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A57CF #CFB23A

analogous

#3AA2CF #3A57CF #683ACF

triadic

#3A57CF #CF3A57 #57CF3A

tetradic

#3A57CF #CF3AA2 #CFB23A #3ACF68

square

#3A57CF #CF3AA2 #CFB23A #3ACF68

split-complementary

#3A57CF #CF683A #A2CF3A

monochromatic

#1C2D73 #2840A4 #3A57CF #6B81DB #9CABE7

Accessibility & contrast

On white

6.10

#3A57CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#3A57CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A57CF

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A57CF	#FFFFFF	#000000	##FFFFFF
##3A57CF	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D3

Deuteranopia (green-blind)

#005BCD

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3a57cf;
/* rgb */ color: rgb(58, 87, 207);
/* oklch */ color: oklch(50.8% 0.188 268.5);

Tailwind

colors: {
  custom: {
    50: '#8486df',
    500: '#3a57cf',
    950: '#000000',
  },
}

SCSS

$custom: #3a57cf;
$custom-light: #8486df;
$custom-dark: #000000;

JSON

{
  "hex": "#3a57cf",
  "rgb": {
    "r": 58,
    "g": 87,
    "b": 207
  },
  "hsl": {
    "h": 228.322,
    "s": 60.816,
    "l": 51.961
  },
  "oklch": {
    "l": 0.50776,
    "c": 0.18811,
    "h": 268.5
  },
  "luminance": 0.12221
}

Semantic roles & 50–950 ramp

primary

#3A57CF

secondary

#D3C692

accent

#C544E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3A57CF

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

Preview Lab → · Contrast checker → · Palette generator →