#2579AE#2579AE

#2579AE is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.2% C 0.113 H 241.5°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#2579AE
RGB	rgb(37, 121, 174)
HSL	hsl(203, 65%, 41%)
HSV	hsv(203, 79%, 68%)
CMYK	cmyk(78.7%, 30.5%, 0%, 31.8%)
CIE-LAB	lab(48.41, -6.03, -35.15)
CIE-LCH	lch(48.41, 35.66, 260.27°)
OKLab	oklab(55.21% -0.0541 -0.0996)
OKLCH	oklch(55.21% 0.113 241.5)
XYZ	xyz(15.2373, 17.1222, 42.5380)
Luminance	0.1712 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2579AE #AE5A25

analogous

#25AE9F #2579AE #2534AE

triadic

#2579AE #AE2579 #79AE25

tetradic

#2579AE #9F25AE #AE5A25 #34AE25

square

#2579AE #9F25AE #AE5A25 #34AE25

split-complementary

#2579AE #AE2534 #AE9F25

monochromatic

#103349 #1A567C #2579AE #3B9AD5 #6DB4E0

Accessibility & contrast

On white

4.75

#2579AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#2579AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2579AE

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2579AE	#FFFFFF	#000000	##FFFFFF
##2579AE	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607AB0

Deuteranopia (green-blind)

#4D6DAD

Tritanopia (blue-blind)

#00868C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2579ae;
/* rgb */ color: rgb(37, 121, 174);
/* oklch */ color: oklch(55.2% 0.113 241.5);

Tailwind

colors: {
  custom: {
    50: '#759fc6',
    500: '#2579ae',
    950: '#000000',
  },
}

SCSS

$custom: #2579ae;
$custom-light: #759fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#2579ae",
  "rgb": {
    "r": 37,
    "g": 121,
    "b": 174
  },
  "hsl": {
    "h": 203.212,
    "s": 64.929,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55205,
    "c": 0.11336,
    "h": 241.5
  },
  "luminance": 0.17124
}

Semantic roles & 50–950 ramp

primary

#2579AE

secondary

#C68D68

accent

#8140E8

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2579AE

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

Preview Lab → · Contrast checker → · Palette generator →