#3570BB#3570BB

#3570BB is a mid, vivid cyan. Relative luminance 0.159; OKLCH L 54.4% C 0.133 H 255.7°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#3570BB
RGB	rgb(53, 112, 187)
HSL	hsl(214, 56%, 47%)
HSV	hsv(214, 72%, 73%)
CMYK	cmyk(71.7%, 40.1%, 0%, 26.7%)
CIE-LAB	lab(46.88, 6.33, -45.08)
CIE-LCH	lch(46.88, 45.52, 278.00°)
OKLab	oklab(54.36% -0.0328 -0.1286)
OKLCH	oklch(54.36% 0.133 255.7)
XYZ	xyz(16.2287, 15.9313, 49.2238)
Luminance	0.1593 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3570BB #BB8035

analogous

#35B3BB #3570BB #3D35BB

triadic

#3570BB #BB3570 #70BB35

tetradic

#3570BB #BB35B3 #BB8035 #35BB3D

square

#3570BB #BB35B3 #BB8035 #35BB3D

split-complementary

#3570BB #BB3D35 #B3BB35

monochromatic

#1A375C #27538B #3570BB #5C90D1 #8CB0DE

Accessibility & contrast

On white

5.02

#3570BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#3570BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3570BB

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3570BB	#FFFFFF	#000000	##FFFFFF
##3570BB	1.00	5.02	4.19	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D76BE

Deuteranopia (green-blind)

#3869B9

Tritanopia (blue-blind)

#00828C

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3570bb;
/* rgb */ color: rgb(53, 112, 187);
/* oklch */ color: oklch(54.4% 0.133 255.7);

Tailwind

colors: {
  custom: {
    50: '#7d98d0',
    500: '#3570bb',
    950: '#000000',
  },
}

SCSS

$custom: #3570bb;
$custom-light: #7d98d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3570bb",
  "rgb": {
    "r": 53,
    "g": 112,
    "b": 187
  },
  "hsl": {
    "h": 213.582,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.5436,
    "c": 0.1327,
    "h": 255.7
  },
  "luminance": 0.15933
}

Semantic roles & 50–950 ramp

primary

#3570BB

secondary

#C9AA83

accent

#9D49DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3570BB

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

Preview Lab → · Contrast checker → · Palette generator →