#3578A3#3578A3

#3578A3 is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.9% C 0.095 H 239.9°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3578A3
RGB	rgb(53, 120, 163)
HSL	hsl(203, 51%, 42%)
HSV	hsv(203, 67%, 64%)
CMYK	cmyk(67.5%, 26.4%, 0%, 36.1%)
CIE-LAB	lab(48.05, -7.12, -29.28)
CIE-LCH	lch(48.05, 30.13, 256.34°)
OKLab	oklab(54.87% -0.0477 -0.0824)
OKLCH	oklch(54.87% 0.095 239.9)
XYZ	xyz(14.7930, 16.8326, 37.1126)
Luminance	0.1683 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578A3 #A36035

analogous

#35A397 #3578A3 #3541A3

triadic

#3578A3 #A33578 #78A335

tetradic

#3578A3 #9735A3 #A36035 #41A335

square

#3578A3 #9735A3 #A36035 #41A335

split-complementary

#3578A3 #A33541 #A39735

monochromatic

#173447 #265675 #3578A3 #4F98C6 #7EB3D5

Accessibility & contrast

On white

4.81

#3578A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3578A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3578A3

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578A3	#FFFFFF	#000000	##FFFFFF
##3578A3	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6478A5

Deuteranopia (green-blind)

#556DA2

Tritanopia (blue-blind)

#008387

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3578a3;
/* rgb */ color: rgb(53, 120, 163);
/* oklch */ color: oklch(54.9% 0.095 239.9);

Tailwind

colors: {
  custom: {
    50: '#799ebe',
    500: '#3578a3',
    950: '#000000',
  },
}

SCSS

$custom: #3578a3;
$custom-light: #799ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#3578a3",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 163
  },
  "hsl": {
    "h": 203.455,
    "s": 50.926,
    "l": 42.353
  },
  "oklch": {
    "l": 0.54875,
    "c": 0.09524,
    "h": 239.9
  },
  "luminance": 0.16834
}

Semantic roles & 50–950 ramp

primary

#3578A3

secondary

#BE9276

accent

#854DDA

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3578A3

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

Preview Lab → · Contrast checker → · Palette generator →