#3571D7#3571D7

#3571D7 is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.4% C 0.169 H 260.3°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3571D7
RGB	rgb(53, 113, 215)
HSL	hsl(218, 67%, 53%)
HSV	hsv(218, 75%, 84%)
CMYK	cmyk(75.3%, 47.4%, 0%, 15.7%)
CIE-LAB	lab(48.85, 16.05, -57.98)
CIE-LCH	lch(48.85, 60.16, 285.48°)
OKLab	oklab(56.42% -0.0284 -0.1665)
OKLCH	oklch(56.42% 0.169 260.3)
XYZ	xyz(19.6346, 17.4712, 66.6143)
Luminance	0.1747 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3571D7 #D79B35

analogous

#35C2D7 #3571D7 #4A35D7

triadic

#3571D7 #D73571 #71D735

tetradic

#3571D7 #D735C2 #D79B35 #35D74A

square

#3571D7 #D735C2 #D79B35 #35D74A

split-complementary

#3571D7 #D74A35 #C2D735

monochromatic

#183C7A #2255AD #3571D7 #6895E1 #9BB9EB

Accessibility & contrast

On white

4.67

#3571D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#3571D7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3571D7

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3571D7	#FFFFFF	#000000	##FFFFFF
##3571D7	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#387CDB

Deuteranopia (green-blind)

#016DD5

Tritanopia (blue-blind)

#00899A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3571d7;
/* rgb */ color: rgb(53, 113, 215);
/* oklch */ color: oklch(56.4% 0.169 260.3);

Tailwind

colors: {
  custom: {
    50: '#8299e4',
    500: '#3571d7',
    950: '#000000',
  },
}

SCSS

$custom: #3571d7;
$custom-light: #8299e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3571d7",
  "rgb": {
    "r": 53,
    "g": 113,
    "b": 215
  },
  "hsl": {
    "h": 217.778,
    "s": 66.942,
    "l": 52.549
  },
  "oklch": {
    "l": 0.5642,
    "c": 0.16889,
    "h": 260.3
  },
  "luminance": 0.17473
}

Semantic roles & 50–950 ramp

primary

#3571D7

secondary

#D7BD91

accent

#AA3EEA

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #3571D7

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

Preview Lab → · Contrast checker → · Palette generator →