#3570B4#3570B4

#3570B4 is a mid, vivid cyan. Relative luminance 0.156; OKLCH L 53.9% C 0.123 H 253.8°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3570B4
RGB	rgb(53, 112, 180)
HSL	hsl(212, 55%, 46%)
HSV	hsv(212, 71%, 71%)
CMYK	cmyk(70.6%, 37.8%, 0%, 29.4%)
CIE-LAB	lab(46.50, 3.77, -41.63)
CIE-LCH	lch(46.50, 41.80, 275.18°)
OKLab	oklab(53.93% -0.0345 -0.1185)
OKLCH	oklch(53.93% 0.123 253.8)
XYZ	xyz(15.4975, 15.6389, 45.3730)
Luminance	0.1564 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3570B4 #B47935

analogous

#35AFB4 #3570B4 #3A35B4

triadic

#3570B4 #B43570 #70B435

tetradic

#3570B4 #B435AF #B47935 #35B43A

square

#3570B4 #B435AF #B47935 #35B43A

split-complementary

#3570B4 #B43A35 #AFB435

monochromatic

#193555 #275385 #3570B4 #588FCE #88AFDC

Accessibility & contrast

On white

5.09

#3570B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#3570B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3570B4

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3570B4	#FFFFFF	#000000	##FFFFFF
##3570B4	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5175B7

Deuteranopia (green-blind)

#3E69B3

Tritanopia (blue-blind)

#008089

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3570b4;
/* rgb */ color: rgb(53, 112, 180);
/* oklch */ color: oklch(53.9% 0.123 253.8);

Tailwind

colors: {
  custom: {
    50: '#7b98cb',
    500: '#3570b4',
    950: '#000000',
  },
}

SCSS

$custom: #3570b4;
$custom-light: #7b98cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3570b4",
  "rgb": {
    "r": 53,
    "g": 112,
    "b": 180
  },
  "hsl": {
    "h": 212.126,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.53932,
    "c": 0.1234,
    "h": 253.8
  },
  "luminance": 0.15641
}

Semantic roles & 50–950 ramp

primary

#3570B4

secondary

#C6A57F

accent

#994ADE

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3570B4

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

Preview Lab → · Contrast checker → · Palette generator →