#2566AD#2566AD

#2566AD is a mid, vivid cyan. Relative luminance 0.129; OKLCH L 50.6% C 0.130 H 253.5°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#2566AD
RGB	rgb(37, 102, 173)
HSL	hsl(211, 65%, 41%)
HSV	hsv(211, 79%, 68%)
CMYK	cmyk(78.6%, 41%, 0%, 32.2%)
CIE-LAB	lab(42.63, 5.26, -43.73)
CIE-LCH	lch(42.63, 44.04, 276.86°)
OKLab	oklab(50.64% -0.0371 -0.125)
OKLCH	oklch(50.64% 0.13 253.5)
XYZ	xyz(13.0543, 12.9116, 41.3312)
Luminance	0.1291 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2566AD #AD6C25

analogous

#25AAAD #2566AD #2825AD

triadic

#2566AD #AD2566 #66AD25

tetradic

#2566AD #AD25AA #AD6C25 #25AD28

square

#2566AD #AD25AA #AD6C25 #25AD28

split-complementary

#2566AD #AD2825 #AAAD25

monochromatic

#0F2B48 #1A487B #2566AD #3A84D5 #6DA4E0

Accessibility & contrast

On white

5.86

#2566AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#2566AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2566AD

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2566AD	#FFFFFF	#000000	##FFFFFF
##2566AD	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#446BB0

Deuteranopia (green-blind)

#2D5FAC

Tritanopia (blue-blind)

#007781

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #2566ad;
/* rgb */ color: rgb(37, 102, 173);
/* oklch */ color: oklch(50.6% 0.130 253.5);

Tailwind

colors: {
  custom: {
    50: '#7491c6',
    500: '#2566ad',
    950: '#000000',
  },
}

SCSS

$custom: #2566ad;
$custom-light: #7491c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2566ad",
  "rgb": {
    "r": 37,
    "g": 102,
    "b": 173
  },
  "hsl": {
    "h": 211.324,
    "s": 64.762,
    "l": 41.176
  },
  "oklch": {
    "l": 0.50642,
    "c": 0.13037,
    "h": 253.5
  },
  "luminance": 0.12913
}

Semantic roles & 50–950 ramp

primary

#2566AD

secondary

#C69968

accent

#9840E8

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2566AD

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

Preview Lab → · Contrast checker → · Palette generator →