#3579B0#3579B0

#3579B0 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.8% C 0.110 H 246.0°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3579B0
RGB	rgb(53, 121, 176)
HSL	hsl(207, 54%, 45%)
HSV	hsv(207, 70%, 69%)
CMYK	cmyk(69.9%, 31.3%, 0%, 31%)
CIE-LAB	lab(48.96, -3.14, -35.41)
CIE-LCH	lch(48.96, 35.55, 264.93°)
OKLab	oklab(55.8% -0.0446 -0.1002)
OKLCH	oklch(55.8% 0.11 246)
XYZ	xyz(16.1391, 17.5645, 43.6056)
Luminance	0.1757 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579B0 #B06C35

analogous

#35B0A9 #3579B0 #353CB0

triadic

#3579B0 #B03579 #79B035

tetradic

#3579B0 #A935B0 #B06C35 #3CB035

square

#3579B0 #A935B0 #B06C35 #3CB035

split-complementary

#3579B0 #B0353C #B0A935

monochromatic

#193852 #275981 #3579B0 #5697CC #85B4DA

Accessibility & contrast

On white

4.65

#3579B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#3579B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3579B0

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579B0	#FFFFFF	#000000	##FFFFFF
##3579B0	1.00	4.65	4.51	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607BB2

Deuteranopia (green-blind)

#4F6FAF

Tritanopia (blue-blind)

#00868C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3579b0;
/* rgb */ color: rgb(53, 121, 176);
/* oklch */ color: oklch(55.8% 0.110 246.0);

Tailwind

colors: {
  custom: {
    50: '#7b9fc8',
    500: '#3579b0',
    950: '#000000',
  },
}

SCSS

$custom: #3579b0;
$custom-light: #7b9fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3579b0",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 176
  },
  "hsl": {
    "h": 206.829,
    "s": 53.712,
    "l": 44.902
  },
  "oklch": {
    "l": 0.558,
    "c": 0.10967,
    "h": 246
  },
  "luminance": 0.17566
}

Semantic roles & 50–950 ramp

primary

#3579B0

secondary

#C49D7D

accent

#8C4BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3579B0

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

Preview Lab → · Contrast checker → · Palette generator →