#3579B2#3579B2

#3579B2 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.9% C 0.112 H 246.9°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3579B2
RGB	rgb(53, 121, 178)
HSL	hsl(207, 54%, 45%)
HSV	hsv(207, 70%, 70%)
CMYK	cmyk(70.2%, 32%, 0%, 30.2%)
CIE-LAB	lab(49.06, -2.43, -36.42)
CIE-LCH	lch(49.06, 36.50, 266.19°)
OKLab	oklab(55.91% -0.044 -0.1031)
OKLCH	oklch(55.91% 0.112 246.9)
XYZ	xyz(16.3384, 17.6442, 44.6555)
Luminance	0.1765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579B2 #B26E35

analogous

#35B2AD #3579B2 #353AB2

triadic

#3579B2 #B23579 #79B235

tetradic

#3579B2 #AD35B2 #B26E35 #3AB235

square

#3579B2 #AD35B2 #B26E35 #3AB235

split-complementary

#3579B2 #B2353A #B2AD35

monochromatic

#193954 #275983 #3579B2 #5797CD #86B4DB

Accessibility & contrast

On white

4.64

#3579B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#3579B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3579B2

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579B2	#FFFFFF	#000000	##FFFFFF
##3579B2	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7BB4

Deuteranopia (green-blind)

#4E6FB1

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3579b2;
/* rgb */ color: rgb(53, 121, 178);
/* oklch */ color: oklch(55.9% 0.112 246.9);

Tailwind

colors: {
  custom: {
    50: '#7b9fc9',
    500: '#3579b2',
    950: '#000000',
  },
}

SCSS

$custom: #3579b2;
$custom-light: #7b9fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3579b2",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 178
  },
  "hsl": {
    "h": 207.36,
    "s": 54.113,
    "l": 45.294
  },
  "oklch": {
    "l": 0.55909,
    "c": 0.11212,
    "h": 246.9
  },
  "luminance": 0.17646
}

Semantic roles & 50–950 ramp

primary

#3579B2

secondary

#C59E7E

accent

#8D4ADD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3579B2

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

Preview Lab → · Contrast checker → · Palette generator →