#3570D7#3570D7

#3570D7 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.2% C 0.170 H 260.7°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3570D7
RGB	rgb(53, 112, 215)
HSL	hsl(218, 67%, 53%)
HSV	hsv(218, 75%, 84%)
CMYK	cmyk(75.3%, 47.9%, 0%, 15.7%)
CIE-LAB	lab(48.57, 16.68, -58.42)
CIE-LCH	lch(48.57, 60.76, 285.94°)
OKLab	oklab(56.21% -0.0276 -0.1678)
OKLCH	oklch(56.21% 0.17 260.7)
XYZ	xyz(19.5237, 17.2493, 66.5773)
Luminance	0.1725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3570D7 #D79C35

analogous

#35C1D7 #3570D7 #4B35D7

triadic

#3570D7 #D73570 #70D735

tetradic

#3570D7 #D735C1 #D79C35 #35D74B

square

#3570D7 #D735C1 #D79C35 #35D74B

split-complementary

#3570D7 #D74B35 #C1D735

monochromatic

#183C7A #2255AD #3570D7 #6894E1 #9BB8EB

Accessibility & contrast

On white

4.72

#3570D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#3570D7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3570D7

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3570D7	#FFFFFF	#000000	##FFFFFF
##3570D7	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#367BDB

Deuteranopia (green-blind)

#006CD5

Tritanopia (blue-blind)

#008999

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3570d7;
/* rgb */ color: rgb(53, 112, 215);
/* oklch */ color: oklch(56.2% 0.170 260.7);

Tailwind

colors: {
  custom: {
    50: '#8298e4',
    500: '#3570d7',
    950: '#000000',
  },
}

SCSS

$custom: #3570d7;
$custom-light: #8298e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3570d7",
  "rgb": {
    "r": 53,
    "g": 112,
    "b": 215
  },
  "hsl": {
    "h": 218.148,
    "s": 66.942,
    "l": 52.549
  },
  "oklch": {
    "l": 0.56208,
    "c": 0.17006,
    "h": 260.7
  },
  "luminance": 0.17252
}

Semantic roles & 50–950 ramp

primary

#3570D7

secondary

#D7BD91

accent

#AB3EEA

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #3570D7

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

Preview Lab → · Contrast checker → · Palette generator →