#3571EA#3571EA

#3571EA is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.8% C 0.194 H 262.3°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3571EA
RGB	rgb(53, 113, 234)
HSL	hsl(220, 81%, 56%)
HSV	hsv(220, 77%, 92%)
CMYK	cmyk(77.4%, 51.7%, 0%, 8.2%)
CIE-LAB	lab(50.10, 23.08, -66.67)
CIE-LCH	lch(50.10, 70.55, 289.10°)
OKLab	oklab(57.78% -0.026 -0.1921)
OKLCH	oklch(57.78% 0.194 262.3)
XYZ	xyz(22.2193, 18.5051, 80.2267)
Luminance	0.1851 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3571EA #EAAE35

analogous

#35CCEA #3571EA #5435EA

triadic

#3571EA #EA3571 #71EA35

tetradic

#3571EA #EA35CC #EAAE35 #35EA54

square

#3571EA #EA35CC #EAAE35 #35EA54

split-complementary

#3571EA #EA5435 #CCEA35

monochromatic

#103C95 #1552CD #3571EA #6C98F0 #A4BFF6

Accessibility & contrast

On white

4.47

#3571EA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#3571EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3571EA

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3571EA	#FFFFFF	#000000	##000000
##3571EA	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B80EE

Deuteranopia (green-blind)

#006FE8

Tritanopia (blue-blind)

#008EA3

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3571ea;
/* rgb */ color: rgb(53, 113, 234);
/* oklch */ color: oklch(57.8% 0.194 262.3);

Tailwind

colors: {
  custom: {
    50: '#8699f1',
    500: '#3571ea',
    950: '#000000',
  },
}

SCSS

$custom: #3571ea;
$custom-light: #8699f1;
$custom-dark: #000000;

JSON

{
  "hex": "#3571ea",
  "rgb": {
    "r": 53,
    "g": 113,
    "b": 234
  },
  "hsl": {
    "h": 220.11,
    "s": 81.166,
    "l": 56.275
  },
  "oklch": {
    "l": 0.57779,
    "c": 0.19381,
    "h": 262.3
  },
  "luminance": 0.18508
}

Semantic roles & 50–950 ramp

primary

#3571EA

secondary

#E3CA98

accent

#B530F8

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D17

muted

#7E7E85

Preview Lab

Preview with #3571EA

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

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