#4273AB#4273AB

#4273AB is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.7% C 0.103 H 253.0°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#4273AB
RGB	rgb(66, 115, 171)
HSL	hsl(212, 44%, 46%)
HSV	hsv(212, 61%, 67%)
CMYK	cmyk(61.4%, 32.7%, 0%, 32.9%)
CIE-LAB	lab(47.44, 1.03, -34.86)
CIE-LCH	lch(47.44, 34.88, 271.70°)
OKLab	oklab(54.66% -0.0301 -0.0985)
OKLCH	oklch(54.66% 0.103 253)
XYZ	xyz(15.7255, 16.3586, 40.8490)
Luminance	0.1636 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4273AB #AB7A42

analogous

#42A8AB #4273AB #4642AB

triadic

#4273AB #AB4273 #73AB42

tetradic

#4273AB #AB42A8 #AB7A42 #42AB46

square

#4273AB #AB42A8 #AB7A42 #42AB46

split-complementary

#4273AB #AB4642 #A8AB42

monochromatic

#203853 #31557F #4273AB #6692C4 #92B1D5

Accessibility & contrast

On white

4.92

#4273AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#4273AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4273AB

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4273AB	#FFFFFF	#000000	##FFFFFF
##4273AB	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B76AD

Deuteranopia (green-blind)

#4D6CAA

Tritanopia (blue-blind)

#008087

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4273ab;
/* rgb */ color: rgb(66, 115, 171);
/* oklch */ color: oklch(54.7% 0.103 253.0);

Tailwind

colors: {
  custom: {
    50: '#809bc4',
    500: '#4273ab',
    950: '#000000',
  },
}

SCSS

$custom: #4273ab;
$custom-light: #809bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#4273ab",
  "rgb": {
    "r": 66,
    "g": 115,
    "b": 171
  },
  "hsl": {
    "h": 212,
    "s": 44.304,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54664,
    "c": 0.103,
    "h": 253
  },
  "luminance": 0.1636
}

Semantic roles & 50–950 ramp

primary

#4273AB

secondary

#C0A688

accent

#9854D4

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #4273AB

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

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