#3578AD#3578AD

#3578AD is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.4% C 0.107 H 245.4°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3578AD
RGB	rgb(53, 120, 173)
HSL	hsl(207, 53%, 44%)
HSV	hsv(207, 69%, 68%)
CMYK	cmyk(69.4%, 30.6%, 0%, 32.2%)
CIE-LAB	lab(48.52, -3.61, -34.37)
CIE-LCH	lch(48.52, 34.56, 264.01°)
OKLab	oklab(55.4% -0.0445 -0.0972)
OKLCH	oklch(55.4% 0.107 245.4)
XYZ	xyz(15.7246, 17.2053, 42.0193)
Luminance	0.1721 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578AD #AD6A35

analogous

#35ADA6 #3578AD #353CAD

triadic

#3578AD #AD3578 #78AD35

tetradic

#3578AD #A635AD #AD6A35 #3CAD35

square

#3578AD #A635AD #AD6A35 #3CAD35

split-complementary

#3578AD #AD353C #ADA635

monochromatic

#18374F #27587E #3578AD #5497CB #83B3D9

Accessibility & contrast

On white

4.73

#3578AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3578AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3578AD

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578AD	#FFFFFF	#000000	##FFFFFF
##3578AD	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607AAF

Deuteranopia (green-blind)

#506EAC

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3578ad;
/* rgb */ color: rgb(53, 120, 173);
/* oklch */ color: oklch(55.4% 0.107 245.4);

Tailwind

colors: {
  custom: {
    50: '#7a9ec5',
    500: '#3578ad',
    950: '#000000',
  },
}

SCSS

$custom: #3578ad;
$custom-light: #7a9ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#3578ad",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 173
  },
  "hsl": {
    "h": 206.5,
    "s": 53.097,
    "l": 44.314
  },
  "oklch": {
    "l": 0.554,
    "c": 0.10689,
    "h": 245.4
  },
  "luminance": 0.17207
}

Semantic roles & 50–950 ramp

primary

#3578AD

secondary

#C39B7B

accent

#8B4BDD

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3578AD

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

Preview Lab → · Contrast checker → · Palette generator →