#3571B3#3571B3

#3571B3 is a mid, vivid cyan. Relative luminance 0.158; OKLCH L 54.1% C 0.121 H 252.8°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3571B3
RGB	rgb(53, 113, 179)
HSL	hsl(211, 54%, 45%)
HSV	hsv(211, 70%, 70%)
CMYK	cmyk(70.4%, 36.9%, 0%, 29.8%)
CIE-LAB	lab(46.74, 2.79, -40.67)
CIE-LCH	lch(46.74, 40.76, 273.93°)
OKLab	oklab(54.1% -0.0357 -0.1156)
OKLCH	oklch(54.1% 0.121 252.8)
XYZ	xyz(15.5070, 15.8202, 44.8754)
Luminance	0.1582 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3571B3 #B37735

analogous

#35B0B3 #3571B3 #3835B3

triadic

#3571B3 #B33571 #71B335

tetradic

#3571B3 #B335B0 #B37735 #35B338

square

#3571B3 #B335B0 #B37735 #35B338

split-complementary

#3571B3 #B33835 #B0B335

monochromatic

#193555 #275384 #3571B3 #5890CD #87AFDB

Accessibility & contrast

On white

5.04

#3571B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#3571B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3571B3

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3571B3	#FFFFFF	#000000	##FFFFFF
##3571B3	1.00	5.04	4.16	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5375B6

Deuteranopia (green-blind)

#4169B2

Tritanopia (blue-blind)

#008089

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3571b3;
/* rgb */ color: rgb(53, 113, 179);
/* oklch */ color: oklch(54.1% 0.121 252.8);

Tailwind

colors: {
  custom: {
    50: '#7b99ca',
    500: '#3571b3',
    950: '#000000',
  },
}

SCSS

$custom: #3571b3;
$custom-light: #7b99ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3571b3",
  "rgb": {
    "r": 53,
    "g": 113,
    "b": 179
  },
  "hsl": {
    "h": 211.429,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.54102,
    "c": 0.12105,
    "h": 252.8
  },
  "luminance": 0.15822
}

Semantic roles & 50–950 ramp

primary

#3571B3

secondary

#C5A47F

accent

#974ADE

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3571B3

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

Preview Lab → · Contrast checker → · Palette generator →