#2564B7#2564B7

#2564B7 is a mid, vivid cyan. Relative luminance 0.129; OKLCH L 50.9% C 0.146 H 256.8°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#2564B7
RGB	rgb(37, 100, 183)
HSL	hsl(214, 66%, 43%)
HSV	hsv(214, 80%, 72%)
CMYK	cmyk(79.8%, 45.4%, 0%, 28.2%)
CIE-LAB	lab(42.65, 10.40, -49.55)
CIE-LCH	lch(42.65, 50.63, 281.85°)
OKLab	oklab(50.85% -0.0333 -0.1421)
OKLCH	oklch(50.85% 0.146 256.8)
XYZ	xyz(13.8642, 12.9249, 46.5546)
Luminance	0.1293 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2564B7 #B77825

analogous

#25ADB7 #2564B7 #2F25B7

triadic

#2564B7 #B72564 #64B725

tetradic

#2564B7 #B725AD #B77825 #25B72F

square

#2564B7 #B725AD #B77825 #25B72F

split-complementary

#2564B7 #B72F25 #ADB725

monochromatic

#102C51 #1B4884 #2564B7 #4182D9 #74A4E3

Accessibility & contrast

On white

5.86

#2564B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#2564B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2564B7

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2564B7	#FFFFFF	#000000	##FFFFFF
##2564B7	1.00	5.86	3.59	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386CBA

Deuteranopia (green-blind)

#175FB5

Tritanopia (blue-blind)

#007884

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #2564b7;
/* rgb */ color: rgb(37, 100, 183);
/* oklch */ color: oklch(50.9% 0.146 256.8);

Tailwind

colors: {
  custom: {
    50: '#778fcd',
    500: '#2564b7',
    950: '#000000',
  },
}

SCSS

$custom: #2564b7;
$custom-light: #778fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#2564b7",
  "rgb": {
    "r": 37,
    "g": 100,
    "b": 183
  },
  "hsl": {
    "h": 214.11,
    "s": 66.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50854,
    "c": 0.14599,
    "h": 256.8
  },
  "luminance": 0.12927
}

Semantic roles & 50–950 ramp

primary

#2564B7

secondary

#CAA26E

accent

#A03FE9

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2564B7

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

Preview Lab → · Contrast checker → · Palette generator →