#2573A3#2573A3

#2573A3 is a mid, moderate cyan. Relative luminance 0.153; OKLCH L 53.1% C 0.106 H 240.5°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#2573A3
RGB	rgb(37, 115, 163)
HSL	hsl(203, 63%, 39%)
HSV	hsv(203, 77%, 64%)
CMYK	cmyk(77.3%, 29.4%, 0%, 36.1%)
CIE-LAB	lab(46.04, -6.52, -32.46)
CIE-LCH	lch(46.04, 33.10, 258.64°)
OKLab	oklab(53.15% -0.052 -0.0918)
OKLCH	oklch(53.15% 0.106 240.5)
XYZ	xyz(13.5019, 15.2975, 36.8843)
Luminance	0.1530 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2573A3 #A35525

analogous

#25A394 #2573A3 #2534A3

triadic

#2573A3 #A32573 #73A325

tetradic

#2573A3 #9425A3 #A35525 #34A325

square

#2573A3 #9425A3 #A35525 #34A325

split-complementary

#2573A3 #A32534 #A39425

monochromatic

#0E2D3F #1A5071 #2573A3 #3495D1 #66AFDC

Accessibility & contrast

On white

5.17

#2573A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#2573A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2573A3

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2573A3	#FFFFFF	#000000	##FFFFFF
##2573A3	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D74A5

Deuteranopia (green-blind)

#4B68A2

Tritanopia (blue-blind)

#007F84

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #2573a3;
/* rgb */ color: rgb(37, 115, 163);
/* oklch */ color: oklch(53.1% 0.106 240.5);

Tailwind

colors: {
  custom: {
    50: '#729bbe',
    500: '#2573a3',
    950: '#000000',
  },
}

SCSS

$custom: #2573a3;
$custom-light: #729bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#2573a3",
  "rgb": {
    "r": 37,
    "g": 115,
    "b": 163
  },
  "hsl": {
    "h": 202.857,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.53148,
    "c": 0.10552,
    "h": 240.5
  },
  "luminance": 0.15299
}

Semantic roles & 50–950 ramp

primary

#2573A3

secondary

#C28662

accent

#8042E6

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2573A3

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

Preview Lab → · Contrast checker → · Palette generator →