#3578CA#3578CA

#3578CA is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.1% C 0.144 H 255.2°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3578CA
RGB	rgb(53, 120, 202)
HSL	hsl(213, 58%, 50%)
HSV	hsv(213, 74%, 79%)
CMYK	cmyk(73.8%, 40.6%, 0%, 20.8%)
CIE-LAB	lab(50.04, 6.88, -48.67)
CIE-LCH	lch(50.04, 49.15, 278.05°)
OKLab	oklab(57.09% -0.0368 -0.139)
OKLCH	oklch(57.09% 0.144 255.2)
XYZ	xyz(18.8414, 18.4520, 58.4343)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578CA #CA8735

analogous

#35C2CA #3578CA #3D35CA

triadic

#3578CA #CA3578 #78CA35

tetradic

#3578CA #CA35C2 #CA8735 #35CA3D

square

#3578CA #CA35C2 #CA8735 #35CA3D

split-complementary

#3578CA #CA3D35 #C2CA35

monochromatic

#1C3E69 #285B9A #3578CA #6598D7 #96B9E3

Accessibility & contrast

On white

4.48

#3578CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#3578CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3578CA

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578CA	#FFFFFF	#000000	##000000
##3578CA	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517ECD

Deuteranopia (green-blind)

#3871C8

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3578ca;
/* rgb */ color: rgb(53, 120, 202);
/* oklch */ color: oklch(57.1% 0.144 255.2);

Tailwind

colors: {
  custom: {
    50: '#7f9eda',
    500: '#3578ca',
    950: '#000000',
  },
}

SCSS

$custom: #3578ca;
$custom-light: #7f9eda;
$custom-dark: #000000;

JSON

{
  "hex": "#3578ca",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 202
  },
  "hsl": {
    "h": 213.02,
    "s": 58.431,
    "l": 50
  },
  "oklch": {
    "l": 0.5709,
    "c": 0.14378,
    "h": 255.2
  },
  "luminance": 0.18454
}

Semantic roles & 50–950 ramp

primary

#3578CA

secondary

#CFB18C

accent

#9C46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3578CA

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

Preview Lab → · Contrast checker → · Palette generator →