#2579A5#2579A5

#2579A5 is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.7% C 0.104 H 236.5°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#2579A5
RGB	rgb(37, 121, 165)
HSL	hsl(201, 63%, 40%)
HSV	hsv(201, 78%, 65%)
CMYK	cmyk(77.6%, 26.7%, 0%, 35.3%)
CIE-LAB	lab(47.99, -9.32, -30.58)
CIE-LCH	lch(47.99, 31.97, 253.06°)
OKLab	oklab(54.73% -0.0571 -0.0863)
OKLCH	oklch(54.73% 0.104 236.5)
XYZ	xyz(14.3891, 16.7830, 38.0711)
Luminance	0.1678 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2579A5 #A55125

analogous

#25A591 #2579A5 #2539A5

triadic

#2579A5 #A52579 #79A525

tetradic

#2579A5 #9125A5 #A55125 #39A525

square

#2579A5 #9125A5 #A55125 #39A525

split-complementary

#2579A5 #A52539 #A59125

monochromatic

#0F3041 #1A5473 #2579A5 #359CD2 #67B5DD

Accessibility & contrast

On white

4.82

#2579A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#2579A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2579A5

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2579A5	#FFFFFF	#000000	##FFFFFF
##2579A5	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6479A7

Deuteranopia (green-blind)

#536DA4

Tritanopia (blue-blind)

#008488

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2579a5;
/* rgb */ color: rgb(37, 121, 165);
/* oklch */ color: oklch(54.7% 0.104 236.5);

Tailwind

colors: {
  custom: {
    50: '#739fc0',
    500: '#2579a5',
    950: '#000000',
  },
}

SCSS

$custom: #2579a5;
$custom-light: #739fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#2579a5",
  "rgb": {
    "r": 37,
    "g": 121,
    "b": 165
  },
  "hsl": {
    "h": 200.625,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.54725,
    "c": 0.10352,
    "h": 236.5
  },
  "luminance": 0.16785
}

Semantic roles & 50–950 ramp

primary

#2579A5

secondary

#C38463

accent

#7A41E6

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2579A5

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

Preview Lab → · Contrast checker → · Palette generator →