#3570B8#3570B8

#3570B8 is a mid, vivid cyan. Relative luminance 0.158; OKLCH L 54.2% C 0.129 H 254.9°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3570B8
RGB	rgb(53, 112, 184)
HSL	hsl(213, 55%, 46%)
HSV	hsv(213, 71%, 72%)
CMYK	cmyk(71.2%, 39.1%, 0%, 27.8%)
CIE-LAB	lab(46.72, 5.23, -43.61)
CIE-LCH	lch(46.72, 43.92, 276.84°)
OKLab	oklab(54.18% -0.0335 -0.1243)
OKLCH	oklch(54.18% 0.129 254.9)
XYZ	xyz(15.9109, 15.8042, 47.5501)
Luminance	0.1581 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3570B8 #B87D35

analogous

#35B2B8 #3570B8 #3C35B8

triadic

#3570B8 #B83570 #70B835

tetradic

#3570B8 #B835B2 #B87D35 #35B83C

square

#3570B8 #B835B2 #B87D35 #35B83C

split-complementary

#3570B8 #B83C35 #B2B835

monochromatic

#1A3659 #275388 #3570B8 #5B8FD0 #8AB0DD

Accessibility & contrast

On white

5.05

#3570B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#3570B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3570B8

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3570B8	#FFFFFF	#000000	##FFFFFF
##3570B8	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F75BB

Deuteranopia (green-blind)

#3B69B7

Tritanopia (blue-blind)

#00818B

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3570b8;
/* rgb */ color: rgb(53, 112, 184);
/* oklch */ color: oklch(54.2% 0.129 254.9);

Tailwind

colors: {
  custom: {
    50: '#7c98ce',
    500: '#3570b8',
    950: '#000000',
  },
}

SCSS

$custom: #3570b8;
$custom-light: #7c98ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3570b8",
  "rgb": {
    "r": 53,
    "g": 112,
    "b": 184
  },
  "hsl": {
    "h": 212.977,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54175,
    "c": 0.12871,
    "h": 254.9
  },
  "luminance": 0.15806
}

Semantic roles & 50–950 ramp

primary

#3570B8

secondary

#C7A881

accent

#9B49DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3570B8

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

Preview Lab → · Contrast checker → · Palette generator →