#3571D0#3571D0

#3571D0 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.9% C 0.160 H 259.3°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3571D0
RGB	rgb(53, 113, 208)
HSL	hsl(217, 62%, 51%)
HSV	hsv(217, 75%, 82%)
CMYK	cmyk(74.5%, 45.7%, 0%, 18.4%)
CIE-LAB	lab(48.41, 13.46, -54.70)
CIE-LCH	lch(48.41, 56.33, 283.82°)
OKLab	oklab(55.94% -0.0295 -0.1568)
OKLCH	oklch(55.94% 0.16 259.3)
XYZ	xyz(18.7544, 17.1191, 61.9782)
Luminance	0.1712 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3571D0 #D09435

analogous

#35BED0 #3571D0 #4635D0

triadic

#3571D0 #D03571 #71D035

tetradic

#3571D0 #D035BE #D09435 #35D046

square

#3571D0 #D035BE #D09435 #35D046

split-complementary

#3571D0 #D04635 #BED035

monochromatic

#1A3C70 #2656A2 #3571D0 #6794DC #98B7E7

Accessibility & contrast

On white

4.75

#3571D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3571D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3571D0

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3571D0	#FFFFFF	#000000	##FFFFFF
##3571D0	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F7BD4

Deuteranopia (green-blind)

#1C6CCE

Tritanopia (blue-blind)

#008796

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3571d0;
/* rgb */ color: rgb(53, 113, 208);
/* oklch */ color: oklch(55.9% 0.160 259.3);

Tailwind

colors: {
  custom: {
    50: '#8199df',
    500: '#3571d0',
    950: '#000000',
  },
}

SCSS

$custom: #3571d0;
$custom-light: #8199df;
$custom-dark: #000000;

JSON

{
  "hex": "#3571d0",
  "rgb": {
    "r": 53,
    "g": 113,
    "b": 208
  },
  "hsl": {
    "h": 216.774,
    "s": 62.249,
    "l": 51.176
  },
  "oklch": {
    "l": 0.55942,
    "c": 0.1596,
    "h": 259.3
  },
  "luminance": 0.17121
}

Semantic roles & 50–950 ramp

primary

#3571D0

secondary

#D3B88E

accent

#A642E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3571D0

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

Preview Lab → · Contrast checker → · Palette generator →