#3570CC#3570CC

#3570CC is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.5% C 0.155 H 259.1°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3570CC
RGB	rgb(53, 112, 204)
HSL	hsl(217, 60%, 50%)
HSV	hsv(217, 74%, 80%)
CMYK	cmyk(74%, 45.1%, 0%, 20%)
CIE-LAB	lab(47.88, 12.61, -53.26)
CIE-LCH	lch(47.88, 54.73, 283.32°)
OKLab	oklab(55.46% -0.0294 -0.1526)
OKLCH	oklch(55.46% 0.155 259.1)
XYZ	xyz(18.1575, 16.7028, 59.3821)
Luminance	0.1671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3570CC #CC9135

analogous

#35BCCC #3570CC #4535CC

triadic

#3570CC #CC3570 #70CC35

tetradic

#3570CC #CC35BC #CC9135 #35CC45

square

#3570CC #CC35BC #CC9135 #35CC45

split-complementary

#3570CC #CC4535 #BCCC35

monochromatic

#1B3B6B #27559C #3570CC #6693D8 #97B5E5

Accessibility & contrast

On white

4.84

#3570CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#3570CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3570CC

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3570CC	#FFFFFF	#000000	##FFFFFF
##3570CC	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4179CF

Deuteranopia (green-blind)

#216BCA

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3570cc;
/* rgb */ color: rgb(53, 112, 204);
/* oklch */ color: oklch(55.5% 0.155 259.1);

Tailwind

colors: {
  custom: {
    50: '#8098dc',
    500: '#3570cc',
    950: '#000000',
  },
}

SCSS

$custom: #3570cc;
$custom-light: #8098dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3570cc",
  "rgb": {
    "r": 53,
    "g": 112,
    "b": 204
  },
  "hsl": {
    "h": 216.556,
    "s": 59.684,
    "l": 50.392
  },
  "oklch": {
    "l": 0.55457,
    "c": 0.15542,
    "h": 259.1
  },
  "luminance": 0.16705
}

Semantic roles & 50–950 ramp

primary

#3570CC

secondary

#D0B68D

accent

#A545E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3570CC

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

Preview Lab → · Contrast checker → · Palette generator →