#2566AA#2566AA

#2566AA is a mid, vivid cyan. Relative luminance 0.128; OKLCH L 50.4% C 0.126 H 252.6°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#2566AA
RGB	rgb(37, 102, 170)
HSL	hsl(211, 64%, 41%)
HSV	hsv(211, 78%, 67%)
CMYK	cmyk(78.2%, 40%, 0%, 33.3%)
CIE-LAB	lab(42.46, 4.11, -42.24)
CIE-LCH	lch(42.46, 42.44, 275.55°)
OKLab	oklab(50.45% -0.0378 -0.1206)
OKLCH	oklch(50.45% 0.126 252.6)
XYZ	xyz(12.7673, 12.7968, 39.8196)
Luminance	0.1280 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2566AA #AA6925

analogous

#25A8AA #2566AA #2725AA

triadic

#2566AA #AA2566 #66AA25

tetradic

#2566AA #AA25A8 #AA6925 #25AA27

square

#2566AA #AA25A8 #AA6925 #25AA27

split-complementary

#2566AA #AA2725 #A8AA25

monochromatic

#0F2A45 #1A4878 #2566AA #3884D4 #6BA3DF

Accessibility & contrast

On white

5.90

#2566AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#2566AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2566AA

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2566AA	#FFFFFF	#000000	##FFFFFF
##2566AA	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456BAD

Deuteranopia (green-blind)

#305FA9

Tritanopia (blue-blind)

#007680

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2566aa;
/* rgb */ color: rgb(37, 102, 170);
/* oklch */ color: oklch(50.4% 0.126 252.6);

Tailwind

colors: {
  custom: {
    50: '#7491c4',
    500: '#2566aa',
    950: '#000000',
  },
}

SCSS

$custom: #2566aa;
$custom-light: #7491c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2566aa",
  "rgb": {
    "r": 37,
    "g": 102,
    "b": 170
  },
  "hsl": {
    "h": 210.677,
    "s": 64.251,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50449,
    "c": 0.1264,
    "h": 252.6
  },
  "luminance": 0.12798
}

Semantic roles & 50–950 ramp

primary

#2566AA

secondary

#C59666

accent

#9641E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #2566AA

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

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