#3571C7#3571C7

#3571C7 is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.3% C 0.148 H 257.8°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3571C7
RGB	rgb(53, 113, 199)
HSL	hsl(215, 58%, 49%)
HSV	hsv(215, 73%, 78%)
CMYK	cmyk(73.4%, 43.2%, 0%, 22%)
CIE-LAB	lab(47.87, 10.13, -50.42)
CIE-LCH	lch(47.87, 51.43, 281.36°)
OKLab	oklab(55.35% -0.0312 -0.1443)
OKLCH	oklch(55.35% 0.148 257.8)
XYZ	xyz(17.6784, 16.6887, 56.3113)
Luminance	0.1669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3571C7 #C78B35

analogous

#35BAC7 #3571C7 #4235C7

triadic

#3571C7 #C73571 #71C735

tetradic

#3571C7 #C735BA #C78B35 #35C742

square

#3571C7 #C735BA #C78B35 #35C742

split-complementary

#3571C7 #C74235 #BAC735

monochromatic

#1B3A66 #285697 #3571C7 #6492D6 #94B4E2

Accessibility & contrast

On white

4.84

#3571C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#3571C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3571C7

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3571C7	#FFFFFF	#000000	##FFFFFF
##3571C7	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4779CA

Deuteranopia (green-blind)

#2C6BC5

Tritanopia (blue-blind)

#008592

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3571c7;
/* rgb */ color: rgb(53, 113, 199);
/* oklch */ color: oklch(55.3% 0.148 257.8);

Tailwind

colors: {
  custom: {
    50: '#7f99d8',
    500: '#3571c7',
    950: '#000000',
  },
}

SCSS

$custom: #3571c7;
$custom-light: #7f99d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3571c7",
  "rgb": {
    "r": 53,
    "g": 113,
    "b": 199
  },
  "hsl": {
    "h": 215.342,
    "s": 57.937,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55346,
    "c": 0.1476,
    "h": 257.8
  },
  "luminance": 0.16691
}

Semantic roles & 50–950 ramp

primary

#3571C7

secondary

#CEB28A

accent

#A247E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3571C7

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

Preview Lab → · Contrast checker → · Palette generator →