#2566A1#2566A1

#2566A1 is a mid, moderate cyan. Relative luminance 0.125; OKLCH L 49.9% C 0.115 H 249.5°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#2566A1
RGB	rgb(37, 102, 161)
HSL	hsl(209, 63%, 39%)
HSV	hsv(209, 77%, 63%)
CMYK	cmyk(77%, 36.6%, 0%, 36.9%)
CIE-LAB	lab(41.95, 0.66, -37.72)
CIE-LCH	lch(41.95, 37.73, 271.01°)
OKLab	oklab(49.89% -0.0401 -0.1074)
OKLCH	oklch(49.89% 0.115 249.5)
XYZ	xyz(11.9449, 12.4679, 35.4883)
Luminance	0.1247 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2566A1 #A16025

analogous

#25A19E #2566A1 #2528A1

triadic

#2566A1 #A12566 #66A125

tetradic

#2566A1 #9E25A1 #A16025 #28A125

square

#2566A1 #9E25A1 #A16025 #28A125

split-complementary

#2566A1 #A12528 #A19E25

monochromatic

#0E273D #1A466F #2566A1 #3385D0 #65A3DC

Accessibility & contrast

On white

6.01

#2566A1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#2566A1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2566A1

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2566A1	#FFFFFF	#000000	##FFFFFF
##2566A1	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B69A3

Deuteranopia (green-blind)

#385EA0

Tritanopia (blue-blind)

#00747C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #2566a1;
/* rgb */ color: rgb(37, 102, 161);
/* oklch */ color: oklch(49.9% 0.115 249.5);

Tailwind

colors: {
  custom: {
    50: '#7291bd',
    500: '#2566a1',
    950: '#000000',
  },
}

SCSS

$custom: #2566a1;
$custom-light: #7291bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2566a1",
  "rgb": {
    "r": 37,
    "g": 102,
    "b": 161
  },
  "hsl": {
    "h": 208.548,
    "s": 62.626,
    "l": 38.824
  },
  "oklch": {
    "l": 0.49889,
    "c": 0.11464,
    "h": 249.5
  },
  "luminance": 0.12469
}

Semantic roles & 50–950 ramp

primary

#2566A1

secondary

#C18F61

accent

#9042E6

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #2566A1

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

Preview Lab → · Contrast checker → · Palette generator →