#2579C5#2579C5

#2579C5 is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.5% C 0.141 H 250.3°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#2579C5
RGB	rgb(37, 121, 197)
HSL	hsl(209, 68%, 46%)
HSV	hsv(209, 81%, 77%)
CMYK	cmyk(81.2%, 38.6%, 0%, 22.7%)
CIE-LAB	lab(49.61, 2.57, -46.51)
CIE-LCH	lch(49.61, 46.59, 273.17°)
OKLab	oklab(56.54% -0.0476 -0.1328)
OKLCH	oklch(56.54% 0.141 250.3)
XYZ	xyz(17.6745, 18.0971, 55.3741)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2579C5 #C57125

analogous

#25C5C1 #2579C5 #2529C5

triadic

#2579C5 #C52579 #79C525

tetradic

#2579C5 #C125C5 #C57125 #29C525

square

#2579C5 #C125C5 #C57125 #29C525

split-complementary

#2579C5 #C52529 #C5C125

monochromatic

#123A5E #1B5991 #2579C5 #4A97DD #7EB5E7

Accessibility & contrast

On white

4.55

#2579C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#2579C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2579C5

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2579C5	#FFFFFF	#000000	##000000
##2579C5	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#547EC8

Deuteranopia (green-blind)

#3B6FC4

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #2579c5;
/* rgb */ color: rgb(37, 121, 197);
/* oklch */ color: oklch(56.5% 0.141 250.3);

Tailwind

colors: {
  custom: {
    50: '#799fd7',
    500: '#2579c5',
    950: '#000000',
  },
}

SCSS

$custom: #2579c5;
$custom-light: #799fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#2579c5",
  "rgb": {
    "r": 37,
    "g": 121,
    "b": 197
  },
  "hsl": {
    "h": 208.5,
    "s": 68.376,
    "l": 45.882
  },
  "oklch": {
    "l": 0.56542,
    "c": 0.14111,
    "h": 250.3
  },
  "luminance": 0.18099
}

Semantic roles & 50–950 ramp

primary

#2579C5

secondary

#CFA177

accent

#903DEB

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #2579C5

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

Preview Lab → · Contrast checker → · Palette generator →