#2573B1#2573B1

#2573B1 is a mid, vivid cyan. Relative luminance 0.158; OKLCH L 53.9% C 0.122 H 247.0°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#2573B1
RGB	rgb(37, 115, 177)
HSL	hsl(207, 65%, 42%)
HSV	hsv(207, 79%, 69%)
CMYK	cmyk(79.1%, 35%, 0%, 30.6%)
CIE-LAB	lab(46.75, -1.31, -39.52)
CIE-LCH	lch(46.75, 39.54, 268.11°)
OKLab	oklab(53.94% -0.0477 -0.1124)
OKLCH	oklch(53.94% 0.122 247)
XYZ	xyz(14.8264, 15.8273, 43.8600)
Luminance	0.1583 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2573B1 #B16325

analogous

#25B1A9 #2573B1 #252DB1

triadic

#2573B1 #B12573 #73B125

tetradic

#2573B1 #A925B1 #B16325 #2DB125

square

#2573B1 #A925B1 #B16325 #2DB125

split-complementary

#2573B1 #B1252D #B1A925

monochromatic

#10314C #1A527E #2573B1 #3D92D6 #6FAFE1

Accessibility & contrast

On white

5.04

#2573B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#2573B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2573B1

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2573B1	#FFFFFF	#000000	##FFFFFF
##2573B1	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5676B4

Deuteranopia (green-blind)

#4269B0

Tritanopia (blue-blind)

#00828A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #2573b1;
/* rgb */ color: rgb(37, 115, 177);
/* oklch */ color: oklch(53.9% 0.122 247.0);

Tailwind

colors: {
  custom: {
    50: '#759ac8',
    500: '#2573b1',
    950: '#000000',
  },
}

SCSS

$custom: #2573b1;
$custom-light: #759ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#2573b1",
  "rgb": {
    "r": 37,
    "g": 115,
    "b": 177
  },
  "hsl": {
    "h": 206.571,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.53939,
    "c": 0.12213,
    "h": 247
  },
  "luminance": 0.15829
}

Semantic roles & 50–950 ramp

primary

#2573B1

secondary

#C8946A

accent

#8A3FE8

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2573B1

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

Preview Lab → · Contrast checker → · Palette generator →