#2563AE#2563AE

#2563AE is a mid, vivid cyan. Relative luminance 0.124; OKLCH L 50.0% C 0.135 H 255.3°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#2563AE
RGB	rgb(37, 99, 174)
HSL	hsl(213, 65%, 41%)
HSV	hsv(213, 79%, 68%)
CMYK	cmyk(78.7%, 43.1%, 0%, 31.8%)
CIE-LAB	lab(41.80, 7.56, -45.64)
CIE-LCH	lch(41.80, 46.26, 279.40°)
OKLab	oklab(50.02% -0.0342 -0.1307)
OKLCH	oklch(50.02% 0.135 255.3)
XYZ	xyz(12.8619, 12.3715, 41.7462)
Luminance	0.1237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2563AE #AE7025

analogous

#25A8AE #2563AE #2C25AE

triadic

#2563AE #AE2563 #63AE25

tetradic

#2563AE #AE25A8 #AE7025 #25AE2C

square

#2563AE #AE25A8 #AE7025 #25AE2C

split-complementary

#2563AE #AE2C25 #A8AE25

monochromatic

#102A49 #1A467C #2563AE #3B81D5 #6DA1E0

Accessibility & contrast

On white

6.04

#2563AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#2563AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2563AE

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2563AE	#FFFFFF	#000000	##FFFFFF
##2563AE	1.00	6.04	3.47	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E69B1

Deuteranopia (green-blind)

#245DAD

Tritanopia (blue-blind)

#007580

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #2563ae;
/* rgb */ color: rgb(37, 99, 174);
/* oklch */ color: oklch(50.0% 0.135 255.3);

Tailwind

colors: {
  custom: {
    50: '#758ec6',
    500: '#2563ae',
    950: '#000000',
  },
}

SCSS

$custom: #2563ae;
$custom-light: #758ec6;
$custom-dark: #000000;

JSON

{
  "hex": "#2563ae",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 174
  },
  "hsl": {
    "h": 212.847,
    "s": 64.929,
    "l": 41.373
  },
  "oklch": {
    "l": 0.50016,
    "c": 0.13508,
    "h": 255.3
  },
  "luminance": 0.12373
}

Semantic roles & 50–950 ramp

primary

#2563AE

secondary

#C69C68

accent

#9C40E8

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2563AE

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

Preview Lab → · Contrast checker → · Palette generator →