#2573A4#2573A4

#2573A4 is a mid, moderate cyan. Relative luminance 0.153; OKLCH L 53.2% C 0.107 H 241.0°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#2573A4
RGB	rgb(37, 115, 164)
HSL	hsl(203, 63%, 39%)
HSV	hsv(203, 77%, 64%)
CMYK	cmyk(77.4%, 29.9%, 0%, 35.7%)
CIE-LAB	lab(46.09, -6.15, -32.97)
CIE-LCH	lch(46.09, 33.54, 259.43°)
OKLab	oklab(53.2% -0.0516 -0.0933)
OKLCH	oklch(53.2% 0.107 241)
XYZ	xyz(13.5919, 15.3335, 37.3581)
Luminance	0.1533 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2573A4 #A45625

analogous

#25A496 #2573A4 #2533A4

triadic

#2573A4 #A42573 #73A425

tetradic

#2573A4 #9625A4 #A45625 #33A425

square

#2573A4 #9625A4 #A45625 #33A425

split-complementary

#2573A4 #A42533 #A49625

monochromatic

#0E2D40 #1A5072 #2573A4 #3595D1 #67AFDD

Accessibility & contrast

On white

5.16

#2573A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#2573A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2573A4

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2573A4	#FFFFFF	#000000	##FFFFFF
##2573A4	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C74A6

Deuteranopia (green-blind)

#4B68A3

Tritanopia (blue-blind)

#007F84

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #2573a4;
/* rgb */ color: rgb(37, 115, 164);
/* oklch */ color: oklch(53.2% 0.107 241.0);

Tailwind

colors: {
  custom: {
    50: '#739bbf',
    500: '#2573a4',
    950: '#000000',
  },
}

SCSS

$custom: #2573a4;
$custom-light: #739bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#2573a4",
  "rgb": {
    "r": 37,
    "g": 115,
    "b": 164
  },
  "hsl": {
    "h": 203.15,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.53203,
    "c": 0.10665,
    "h": 241
  },
  "luminance": 0.15335
}

Semantic roles & 50–950 ramp

primary

#2573A4

secondary

#C28762

accent

#8142E6

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2573A4

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

Preview Lab → · Contrast checker → · Palette generator →