#3570C7#3570C7

#3570C7 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.1% C 0.149 H 258.2°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#3570C7
RGB	rgb(53, 112, 199)
HSL	hsl(216, 58%, 49%)
HSV	hsv(216, 73%, 78%)
CMYK	cmyk(73.4%, 43.7%, 0%, 22%)
CIE-LAB	lab(47.58, 10.76, -50.88)
CIE-LCH	lch(47.58, 52.00, 281.94°)
OKLab	oklab(55.13% -0.0303 -0.1456)
OKLCH	oklch(55.13% 0.149 258.2)
XYZ	xyz(17.5674, 16.4668, 56.2743)
Luminance	0.1647 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3570C7 #C78C35

analogous

#35B9C7 #3570C7 #4335C7

triadic

#3570C7 #C73570 #70C735

tetradic

#3570C7 #C735B9 #C78C35 #35C743

square

#3570C7 #C735B9 #C78C35 #35C743

split-complementary

#3570C7 #C74335 #B9C735

monochromatic

#1B3A66 #285597 #3570C7 #6492D6 #94B4E2

Accessibility & contrast

On white

4.89

#3570C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#3570C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3570C7

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3570C7	#FFFFFF	#000000	##FFFFFF
##3570C7	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4578CA

Deuteranopia (green-blind)

#296BC5

Tritanopia (blue-blind)

#008492

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3570c7;
/* rgb */ color: rgb(53, 112, 199);
/* oklch */ color: oklch(55.1% 0.149 258.2);

Tailwind

colors: {
  custom: {
    50: '#7f98d8',
    500: '#3570c7',
    950: '#000000',
  },
}

SCSS

$custom: #3570c7;
$custom-light: #7f98d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3570c7",
  "rgb": {
    "r": 53,
    "g": 112,
    "b": 199
  },
  "hsl": {
    "h": 215.753,
    "s": 57.937,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55126,
    "c": 0.14874,
    "h": 258.2
  },
  "luminance": 0.16469
}

Semantic roles & 50–950 ramp

primary

#3570C7

secondary

#CEB28A

accent

#A347E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3570C7

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

Preview Lab → · Contrast checker → · Palette generator →