#3578AE#3578AE

#3578AE is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.5% C 0.108 H 245.9°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3578AE
RGB	rgb(53, 120, 174)
HSL	hsl(207, 53%, 45%)
HSV	hsv(207, 70%, 68%)
CMYK	cmyk(69.5%, 31%, 0%, 31.8%)
CIE-LAB	lab(48.57, -3.25, -34.88)
CIE-LCH	lch(48.57, 35.03, 264.67°)
OKLab	oklab(55.46% -0.0442 -0.0987)
OKLCH	oklch(55.46% 0.108 245.9)
XYZ	xyz(15.8218, 17.2441, 42.5308)
Luminance	0.1725 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578AE #AE6B35

analogous

#35AEA8 #3578AE #353BAE

triadic

#3578AE #AE3578 #78AE35

tetradic

#3578AE #A835AE #AE6B35 #3BAE35

square

#3578AE #A835AE #AE6B35 #3BAE35

split-complementary

#3578AE #AE353B #AEA835

monochromatic

#183750 #27587F #3578AE #5596CB #84B3DA

Accessibility & contrast

On white

4.72

#3578AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#3578AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3578AE

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578AE	#FFFFFF	#000000	##FFFFFF
##3578AE	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607AB0

Deuteranopia (green-blind)

#4F6EAD

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3578ae;
/* rgb */ color: rgb(53, 120, 174);
/* oklch */ color: oklch(55.5% 0.108 245.9);

Tailwind

colors: {
  custom: {
    50: '#7a9ec6',
    500: '#3578ae',
    950: '#000000',
  },
}

SCSS

$custom: #3578ae;
$custom-light: #7a9ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#3578ae",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 174
  },
  "hsl": {
    "h": 206.777,
    "s": 53.304,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55455,
    "c": 0.1081,
    "h": 245.9
  },
  "luminance": 0.17246
}

Semantic roles & 50–950 ramp

primary

#3578AE

secondary

#C39C7C

accent

#8C4BDD

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3578AE

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

Preview Lab → · Contrast checker → · Palette generator →