#3575BB#3575BB

#3575BB is a mid, vivid cyan. Relative luminance 0.171; OKLCH L 55.5% C 0.127 H 252.8°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3575BB
RGB	rgb(53, 117, 187)
HSL	hsl(211, 56%, 47%)
HSV	hsv(211, 72%, 73%)
CMYK	cmyk(71.7%, 37.4%, 0%, 26.7%)
CIE-LAB	lab(48.34, 3.24, -42.76)
CIE-LCH	lch(48.34, 42.88, 274.34°)
OKLab	oklab(55.5% -0.0376 -0.1217)
OKLCH	oklch(55.5% 0.127 252.8)
XYZ	xyz(16.7958, 17.0655, 49.4129)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3575BB #BB7B35

analogous

#35B8BB #3575BB #3835BB

triadic

#3575BB #BB3575 #75BB35

tetradic

#3575BB #BB35B8 #BB7B35 #35BB38

square

#3575BB #BB35B8 #BB7B35 #35BB38

split-complementary

#3575BB #BB3835 #B8BB35

monochromatic

#1A395C #27578B #3575BB #5C94D1 #8CB3DE

Accessibility & contrast

On white

4.76

#3575BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#3575BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3575BB

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3575BB	#FFFFFF	#000000	##FFFFFF
##3575BB	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#557ABE

Deuteranopia (green-blind)

#416DBA

Tritanopia (blue-blind)

#00858F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3575bb;
/* rgb */ color: rgb(53, 117, 187);
/* oklch */ color: oklch(55.5% 0.127 252.8);

Tailwind

colors: {
  custom: {
    50: '#7d9cd0',
    500: '#3575bb',
    950: '#000000',
  },
}

SCSS

$custom: #3575bb;
$custom-light: #7d9cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3575bb",
  "rgb": {
    "r": 53,
    "g": 117,
    "b": 187
  },
  "hsl": {
    "h": 211.343,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.55497,
    "c": 0.12738,
    "h": 252.8
  },
  "luminance": 0.17067
}

Semantic roles & 50–950 ramp

primary

#3575BB

secondary

#C9A783

accent

#9749DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3575BB

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

Preview Lab → · Contrast checker → · Palette generator →