#3571C5#3571C5

#3571C5 is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.2% C 0.145 H 257.4°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3571C5
RGB	rgb(53, 113, 197)
HSL	hsl(215, 58%, 49%)
HSV	hsv(215, 73%, 77%)
CMYK	cmyk(73.1%, 42.6%, 0%, 22.7%)
CIE-LAB	lab(47.75, 9.39, -49.46)
CIE-LCH	lch(47.75, 50.35, 280.75°)
OKLab	oklab(55.22% -0.0316 -0.1414)
OKLCH	oklch(55.22% 0.145 257.4)
XYZ	xyz(17.4477, 16.5964, 55.0964)
Luminance	0.1660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3571C5 #C58935

analogous

#35B9C5 #3571C5 #4135C5

triadic

#3571C5 #C53571 #71C535

tetradic

#3571C5 #C535B9 #C58935 #35C541

square

#3571C5 #C535B9 #C58935 #35C541

split-complementary

#3571C5 #C54135 #B9C535

monochromatic

#1B3A65 #285595 #3571C5 #6292D5 #93B4E2

Accessibility & contrast

On white

4.86

#3571C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#3571C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3571C5

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3571C5	#FFFFFF	#000000	##FFFFFF
##3571C5	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4878C8

Deuteranopia (green-blind)

#2F6BC3

Tritanopia (blue-blind)

#008591

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3571c5;
/* rgb */ color: rgb(53, 113, 197);
/* oklch */ color: oklch(55.2% 0.145 257.4);

Tailwind

colors: {
  custom: {
    50: '#7f99d7',
    500: '#3571c5',
    950: '#000000',
  },
}

SCSS

$custom: #3571c5;
$custom-light: #7f99d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3571c5",
  "rgb": {
    "r": 53,
    "g": 113,
    "b": 197
  },
  "hsl": {
    "h": 215,
    "s": 57.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.55216,
    "c": 0.14493,
    "h": 257.4
  },
  "luminance": 0.16598
}

Semantic roles & 50–950 ramp

primary

#3571C5

secondary

#CDB189

accent

#A147E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3571C5

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

Preview Lab → · Contrast checker → · Palette generator →