#2566BD#2566BD

#2566BD is a mid, vivid cyan. Relative luminance 0.136; OKLCH L 51.7% C 0.152 H 257.1°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#2566BD
RGB	rgb(37, 102, 189)
HSL	hsl(214, 67%, 44%)
HSV	hsv(214, 80%, 74%)
CMYK	cmyk(80.4%, 46%, 0%, 25.9%)
CIE-LAB	lab(43.61, 11.44, -51.51)
CIE-LCH	lch(43.61, 52.76, 282.52°)
OKLab	oklab(51.72% -0.0338 -0.1479)
OKLCH	oklch(51.72% 0.152 257.1)
XYZ	xyz(14.6962, 13.5684, 49.9787)
Luminance	0.1357 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2566BD #BD7C25

analogous

#25B2BD #2566BD #3025BD

triadic

#2566BD #BD2566 #66BD25

tetradic

#2566BD #BD25B2 #BD7C25 #25BD30

square

#2566BD #BD25B2 #BD7C25 #25BD30

split-complementary

#2566BD #BD3025 #B2BD25

monochromatic

#112F57 #1B4A8A #2566BD #4585DB #78A6E5

Accessibility & contrast

On white

5.65

#2566BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#2566BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2566BD

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2566BD	#FFFFFF	#000000	##FFFFFF
##2566BD	1.00	5.65	3.71	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376EC0

Deuteranopia (green-blind)

#1061BB

Tritanopia (blue-blind)

#007B88

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #2566bd;
/* rgb */ color: rgb(37, 102, 189);
/* oklch */ color: oklch(51.7% 0.152 257.1);

Tailwind

colors: {
  custom: {
    50: '#7891d1',
    500: '#2566bd',
    950: '#000000',
  },
}

SCSS

$custom: #2566bd;
$custom-light: #7891d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2566bd",
  "rgb": {
    "r": 37,
    "g": 102,
    "b": 189
  },
  "hsl": {
    "h": 214.342,
    "s": 67.257,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51716,
    "c": 0.15167,
    "h": 257.1
  },
  "luminance": 0.1357
}

Semantic roles & 50–950 ramp

primary

#2566BD

secondary

#CCA572

accent

#A03EEA

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C14

muted

#7C7D82

Preview Lab

Preview with #2566BD

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

Preview Lab → · Contrast checker → · Palette generator →