#3578AF#3578AF

#3578AF is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.5% C 0.109 H 246.3°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3578AF
RGB	rgb(53, 120, 175)
HSL	hsl(207, 54%, 45%)
HSV	hsv(207, 70%, 69%)
CMYK	cmyk(69.7%, 31.4%, 0%, 31.4%)
CIE-LAB	lab(48.62, -2.90, -35.38)
CIE-LCH	lch(48.62, 35.50, 265.32°)
OKLab	oklab(55.51% -0.0439 -0.1001)
OKLCH	oklch(55.51% 0.109 246.3)
XYZ	xyz(15.9196, 17.2833, 43.0461)
Luminance	0.1729 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578AF #AF6C35

analogous

#35AFA9 #3578AF #353BAF

triadic

#3578AF #AF3578 #78AF35

tetradic

#3578AF #A935AF #AF6C35 #3BAF35

square

#3578AF #A935AF #AF6C35 #3BAF35

split-complementary

#3578AF #AF353B #AFA935

monochromatic

#193851 #275880 #3578AF #5696CC #85B3DA

Accessibility & contrast

On white

4.71

#3578AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#3578AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3578AF

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578AF	#FFFFFF	#000000	##FFFFFF
##3578AF	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7AB1

Deuteranopia (green-blind)

#4E6EAE

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3578af;
/* rgb */ color: rgb(53, 120, 175);
/* oklch */ color: oklch(55.5% 0.109 246.3);

Tailwind

colors: {
  custom: {
    50: '#7b9ec7',
    500: '#3578af',
    950: '#000000',
  },
}

SCSS

$custom: #3578af;
$custom-light: #7b9ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#3578af",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 175
  },
  "hsl": {
    "h": 207.049,
    "s": 53.509,
    "l": 44.706
  },
  "oklch": {
    "l": 0.55509,
    "c": 0.10931,
    "h": 246.3
  },
  "luminance": 0.17285
}

Semantic roles & 50–950 ramp

primary

#3578AF

secondary

#C49C7C

accent

#8D4BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3578AF

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

Preview Lab → · Contrast checker → · Palette generator →