#2563B6#2563B6

#2563B6 is a mid, vivid cyan. Relative luminance 0.127; OKLCH L 50.6% C 0.146 H 257.1°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#2563B6
RGB	rgb(37, 99, 182)
HSL	hsl(214, 66%, 43%)
HSV	hsv(214, 80%, 71%)
CMYK	cmyk(79.7%, 45.6%, 0%, 28.6%)
CIE-LAB	lab(42.30, 10.66, -49.53)
CIE-LCH	lch(42.30, 50.67, 282.14°)
OKLab	oklab(50.56% -0.0326 -0.1421)
OKLCH	oklch(50.56% 0.146 257.1)
XYZ	xyz(13.6652, 12.6928, 45.9766)
Luminance	0.1269 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2563B6 #B67825

analogous

#25ABB6 #2563B6 #3025B6

triadic

#2563B6 #B62563 #63B625

tetradic

#2563B6 #B625AB #B67825 #25B630

square

#2563B6 #B625AB #B67825 #25B630

split-complementary

#2563B6 #B63025 #ABB625

monochromatic

#102C50 #1B4783 #2563B6 #4081D8 #73A3E3

Accessibility & contrast

On white

5.93

#2563B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#2563B6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2563B6

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2563B6	#FFFFFF	#000000	##FFFFFF
##2563B6	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376BB9

Deuteranopia (green-blind)

#155EB4

Tritanopia (blue-blind)

#007783

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2563b6;
/* rgb */ color: rgb(37, 99, 182);
/* oklch */ color: oklch(50.6% 0.146 257.1);

Tailwind

colors: {
  custom: {
    50: '#768ecc',
    500: '#2563b6',
    950: '#000000',
  },
}

SCSS

$custom: #2563b6;
$custom-light: #768ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#2563b6",
  "rgb": {
    "r": 37,
    "g": 99,
    "b": 182
  },
  "hsl": {
    "h": 214.345,
    "s": 66.21,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5056,
    "c": 0.14582,
    "h": 257.1
  },
  "luminance": 0.12694
}

Semantic roles & 50–950 ramp

primary

#2563B6

secondary

#CAA26D

accent

#A03FE9

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2563B6

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

Preview Lab → · Contrast checker → · Palette generator →