#3573B9#3573B9

#3573B9 is a mid, vivid cyan. Relative luminance 0.165; OKLCH L 54.9% C 0.127 H 253.4°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#3573B9
RGB	rgb(53, 115, 185)
HSL	hsl(212, 55%, 47%)
HSV	hsv(212, 71%, 73%)
CMYK	cmyk(71.4%, 37.8%, 0%, 27.5%)
CIE-LAB	lab(47.65, 3.74, -42.70)
CIE-LCH	lch(47.65, 42.87, 275.01°)
OKLab	oklab(54.92% -0.0362 -0.1216)
OKLCH	oklch(54.92% 0.127 253.4)
XYZ	xyz(16.3526, 16.5194, 48.2163)
Luminance	0.1652 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3573B9 #B97B35

analogous

#35B5B9 #3573B9 #3935B9

triadic

#3573B9 #B93573 #73B935

tetradic

#3573B9 #B935B5 #B97B35 #35B939

square

#3573B9 #B935B5 #B97B35 #35B939

split-complementary

#3573B9 #B93935 #B5B935

monochromatic

#1A385A #275589 #3573B9 #5B92D0 #8BB2DE

Accessibility & contrast

On white

4.88

#3573B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#3573B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3573B9

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3573B9	#FFFFFF	#000000	##FFFFFF
##3573B9	1.00	4.88	4.30	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5378BC

Deuteranopia (green-blind)

#3F6BB8

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3573b9;
/* rgb */ color: rgb(53, 115, 185);
/* oklch */ color: oklch(54.9% 0.127 253.4);

Tailwind

colors: {
  custom: {
    50: '#7c9ace',
    500: '#3573b9',
    950: '#000000',
  },
}

SCSS

$custom: #3573b9;
$custom-light: #7c9ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3573b9",
  "rgb": {
    "r": 53,
    "g": 115,
    "b": 185
  },
  "hsl": {
    "h": 211.818,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.5492,
    "c": 0.12684,
    "h": 253.4
  },
  "luminance": 0.16521
}

Semantic roles & 50–950 ramp

primary

#3573B9

secondary

#C8A782

accent

#9849DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3573B9

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

Preview Lab → · Contrast checker → · Palette generator →