#3579AF#3579AF

#3579AF is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.7% C 0.108 H 245.6°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3579AF
RGB	rgb(53, 121, 175)
HSL	hsl(207, 54%, 45%)
HSV	hsv(207, 70%, 69%)
CMYK	cmyk(69.7%, 30.9%, 0%, 31.4%)
CIE-LAB	lab(48.91, -3.50, -34.91)
CIE-LCH	lch(48.91, 35.09, 264.28°)
OKLab	oklab(55.75% -0.0449 -0.0987)
OKLCH	oklch(55.75% 0.108 245.6)
XYZ	xyz(16.0405, 17.5250, 43.0864)
Luminance	0.1753 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579AF #AF6B35

analogous

#35AFA8 #3579AF #353CAF

triadic

#3579AF #AF3579 #79AF35

tetradic

#3579AF #A835AF #AF6B35 #3CAF35

square

#3579AF #A835AF #AF6B35 #3CAF35

split-complementary

#3579AF #AF353C #AFA835

monochromatic

#193851 #275980 #3579AF #5697CC #85B4DA

Accessibility & contrast

On white

4.66

#3579AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#3579AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3579AF

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579AF	#FFFFFF	#000000	##FFFFFF
##3579AF	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#617BB1

Deuteranopia (green-blind)

#506FAE

Tritanopia (blue-blind)

#00868C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3579af;
/* rgb */ color: rgb(53, 121, 175);
/* oklch */ color: oklch(55.7% 0.108 245.6);

Tailwind

colors: {
  custom: {
    50: '#7b9fc7',
    500: '#3579af',
    950: '#000000',
  },
}

SCSS

$custom: #3579af;
$custom-light: #7b9fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3579af",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 175
  },
  "hsl": {
    "h": 206.557,
    "s": 53.509,
    "l": 44.706
  },
  "oklch": {
    "l": 0.55746,
    "c": 0.10847,
    "h": 245.6
  },
  "luminance": 0.17527
}

Semantic roles & 50–950 ramp

primary

#3579AF

secondary

#C49C7C

accent

#8C4BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3579AF

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

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