#3570C4#3570C4

#3570C4 is a mid, vivid blue. Relative luminance 0.163; OKLCH L 54.9% C 0.145 H 257.7°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#3570C4
RGB	rgb(53, 112, 196)
HSL	hsl(215, 57%, 49%)
HSV	hsv(215, 73%, 77%)
CMYK	cmyk(73%, 42.9%, 0%, 23.1%)
CIE-LAB	lab(47.40, 9.65, -49.44)
CIE-LCH	lch(47.40, 50.37, 281.04°)
OKLab	oklab(54.93% -0.0309 -0.1414)
OKLCH	oklch(54.93% 0.145 257.7)
XYZ	xyz(17.2225, 16.3289, 54.4580)
Luminance	0.1633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3570C4 #C48935

analogous

#35B8C4 #3570C4 #4235C4

triadic

#3570C4 #C43570 #70C435

tetradic

#3570C4 #C435B8 #C48935 #35C442

square

#3570C4 #C435B8 #C48935 #35C442

split-complementary

#3570C4 #C44235 #B8C435

monochromatic

#1B3964 #285494 #3570C4 #6291D4 #92B3E1

Accessibility & contrast

On white

4.92

#3570C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#3570C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3570C4

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3570C4	#FFFFFF	#000000	##FFFFFF
##3570C4	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4778C7

Deuteranopia (green-blind)

#2D6AC2

Tritanopia (blue-blind)

#008490

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3570c4;
/* rgb */ color: rgb(53, 112, 196);
/* oklch */ color: oklch(54.9% 0.145 257.7);

Tailwind

colors: {
  custom: {
    50: '#7e98d6',
    500: '#3570c4',
    950: '#000000',
  },
}

SCSS

$custom: #3570c4;
$custom-light: #7e98d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3570c4",
  "rgb": {
    "r": 53,
    "g": 112,
    "b": 196
  },
  "hsl": {
    "h": 215.245,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54931,
    "c": 0.14472,
    "h": 257.7
  },
  "luminance": 0.16331
}

Semantic roles & 50–950 ramp

primary

#3570C4

secondary

#CCB088

accent

#A147E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3570C4

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

Preview Lab → · Contrast checker → · Palette generator →