#3571C8#3571C8

#3571C8 is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.4% C 0.149 H 258.0°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#3571C8
RGB	rgb(53, 113, 200)
HSL	hsl(216, 58%, 50%)
HSV	hsv(216, 74%, 78%)
CMYK	cmyk(73.5%, 43.5%, 0%, 21.6%)
CIE-LAB	lab(47.92, 10.50, -50.90)
CIE-LCH	lch(47.92, 51.97, 281.65°)
OKLab	oklab(55.41% -0.031 -0.1457)
OKLCH	oklch(55.41% 0.149 258)
XYZ	xyz(17.7948, 16.7353, 56.9248)
Luminance	0.1674 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3571C8 #C88C35

analogous

#35BBC8 #3571C8 #4235C8

triadic

#3571C8 #C83571 #71C835

tetradic

#3571C8 #C835BB #C88C35 #35C842

square

#3571C8 #C835BB #C88C35 #35C842

split-complementary

#3571C8 #C84235 #BBC835

monochromatic

#1B3A67 #285698 #3571C8 #6493D6 #95B5E3

Accessibility & contrast

On white

4.83

#3571C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#3571C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3571C8

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3571C8	#FFFFFF	#000000	##FFFFFF
##3571C8	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4679CB

Deuteranopia (green-blind)

#2A6BC6

Tritanopia (blue-blind)

#008593

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3571c8;
/* rgb */ color: rgb(53, 113, 200);
/* oklch */ color: oklch(55.4% 0.149 258.0);

Tailwind

colors: {
  custom: {
    50: '#7f99d9',
    500: '#3571c8',
    950: '#000000',
  },
}

SCSS

$custom: #3571c8;
$custom-light: #7f99d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3571c8",
  "rgb": {
    "r": 53,
    "g": 113,
    "b": 200
  },
  "hsl": {
    "h": 215.51,
    "s": 58.103,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55411,
    "c": 0.14893,
    "h": 258
  },
  "luminance": 0.16737
}

Semantic roles & 50–950 ramp

primary

#3571C8

secondary

#CEB38B

accent

#A246E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D15

muted

#7C7E83

Preview Lab

Preview with #3571C8

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

Preview Lab → · Contrast checker → · Palette generator →